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Wind Turbine patents

      

This page is updated frequently with new Wind Turbine-related patent applications.

new patent Power system for multiple power sources
a voltage booster allowing for increased utilization of low voltage, high current, unregulated dc power (“lvdc source”), such as, but not limited to, fuel cells, batteries, solar cells, wind turbines, and hydro-turbines. Lvdc generation systems employing a variable low voltage dc-dc converter of the present disclosure may be used without a power inverter in applications requiring high voltage dc inputs and can also allow for the employment of common, low cost, reliable, low voltage energy storage chemistries (operating in the 12-48 vdc range) while continuing to employ the use of traditional inverters designed for high voltage power supplies.
Combined Energies Llc


new patent Method of damping electromechanical oscillations on a power system
a method is for damping electromechanical oscillations on a power system by injecting reactive power generated by one or more wind turbines. A reactive power controller is adapted to determine a reference reactive power value depending on an actual system voltage.
Nordex Energy Gmbh


new patent Atmospheric greenhouse gas removal
a material (such as potassium hydroxide or ammonia) capable of reacting with ambient carbon dioxide to produce fertilizer is placed in the path of ambient air movement. Desirably the material is associated with a fabric which in turn is associated with a vane of a vertical axis wind turbine, the turbine performing useful work as well as supporting the material which produces a fertilizer.

new patent Tip extensions for wind turbine rotor blades and methods of installing same
the present disclosure is directed to tip extensions for wind turbine rotor blades and methods of installing same. The method includes removing a removable blade tip of a lightning protection system from the rotor blade so as to expose a down conductor of the lightning protection system.
General Electric Company


new patent Method of calibrating load sensors of a wind turbine
a method of calibrating load sensors of a wind turbine, and a wind turbine for such load sensor calibration, are disclosed. The wind turbine comprises a rotor, a plurality of rotor blades, and a plurality of load sensors associated with the rotor blades.
Vestas Wind Systems A/s


new patent Wind turbine
a vertical axis wind turbine having a platform and a roof forming a housing for a vertical axis rotor and a stator. Stator vanes extend between the platform and the roof.
Cbc, Llc


new patent Rotational positioning system in a wind turbine
a rotational positioning system in a wind turbine is provided that comprises a driven part, a plurality of positioning drives coupled to the driven part, a plurality of sensors each arranged to sense a load parameter indicative of the load of the respective positioning drive, and a load controller connected to the plurality of sensors. The load controller is arranged to determine a load of a respective positioning drive based on the sensed load parameter, to compare said load with an expected load value, and to output a signal indicative of a failure of the respective positioning drive in response to the load being smaller than the expected load value..
Vestas Wind Systems A/s


new patent Overboosting techniques for wind power plant
a method and control arrangement are disclosed for controlling power output of a wind power plant (wpp) including a plurality of wind turbine generators (wtgs). The method includes determining that overboosting is required for the wpp to meet a power demand at the wpp, and determining, for at least a first wtg of the plurality of wtgs, a corresponding amount of overboost capacity.
Vestas Wind Systems A/s


new patent System for wind turbine blade actuation
a wind turbine blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the blade segments having a pressure side shell member, a suction side shell member.
General Electric Company


new patent Yaw control for wind generator set
provided are a yawing control method and a yawing control device for a wind turbine. The yawing control method includes: acquiring first wind information at a current moment characterized by current operation data of a neighbor wind turbine adjacent to the wind turbine when at least one of a wind direction sensor and a wind direction data uploading path of the wind turbine fails; acquiring second wind information matched with the first wind information in wind information characterized by historical operation data of the wind turbine at all moments; and performing yawing control on the wind turbine based on the second wind information..
Beijing Etechwin Electric Co., Ltd.


new patent

Low reynolds number airfoil for a wind turbine blade and method thereof

a low reynolds number airfoil for a wind turbine blade, the airfoil having a leading edge 101, a trailing edge spaced from the leading edge 101, a chord 120 defined as a straight line joining the leading edge 101 and the trailing edge, a chord 120 length defined as distance between the trailing edge and the point on the leading edge 101 where the chord 120 intersects the leading edge 101 wherein the airfoil comprises a camber 121 between 5% to 7% of the chord 120 length, the camber 121 is disposed within a distance of 17% of the chord 120 length from the leading edge 101 and a thickness of the airfoil not greater than 7% of the chord 120 length. In an embodiment, it discloses a method of designing blade for low wind speed turbine for a site location, the method comprising obtaining time series data for the site location, computing a weibull shape factor (k) and scale factor (c)corresponding to a weibull distribution function based on the time series data for the site location, using k and c to identify energy intensive wind speed at the site location, determining blade length based on the energy intensive wind speed, k, c, a design power (pd) of the turbine, a design power coefficient (cpd), and a density of the air (ro), wherein the rated power of the turbine depends on load to be connected of the turbine, selecting a generator for use with the turbine, computing a design tip speed ratio based on a rated speed of the generator (ngd), a gear ratio (gr), the design power (pd), k, and c, identifying number of blades (b) depending on the design tip speed ratio and an end-use of the power being produced by the turbine; and identifying a chord 120 length and twist of the blade from root-to-tip..
Universiti Brunei Darussalam

new patent

Wind turbine rotor blade

a rotor blade of a wind power installation, comprising an inner section in which the rotor blade is fastened on a rotor hub, and an outer section, which is connected to the rotor blade and comprises a rotor blade tip. The rotor blade has at least partially a flat back profile having a truncated rear edge in the inner section, and at least one control unit for controlling the wake is provided on the rotor blade on the flat back profile..
Wobben Properties Gmbh

new patent

Hull for a floating wind turbine platform

a hull for a semi-submersible wind turbine platform capable of floating on a body of water and supporting a wind turbine includes a keystone and at least three bottom beams extending radially outward of the keystone. Each bottom beam has a primary beam portion and a column base portion, wherein the column base portion is configured to support an outer column of the hull thereon, and wherein the primary beam portion defines a first ballast compartment therein.
University Of Maine System Board Of Trustees

Rotor of a gearless wind turbine

a preformed coil of a rotor of a synchronous generator of a gearless wind power plant is provided. The preformed coil may be arranged around a pole shoe defining a central axis.
Wobben Properties Gmbh

Wind turbine rotor shaft arrangement

a wind turbine rotor shaft arrangement, e.g. Of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point.
Aktiebolaget Skf

Wind turbine

the present invention describes a wind turbine comprising a hub, at least one blade and at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race, wherein the wind turbine further comprises at least a tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing, thus increasing the resultant stiffness of the at least one pitch bearing.. .
Acciona Windpower, S.a.

Wind turbine comprising a tower part of an ultra-high performance fiber reinforced composite

a wind turbine generator is disclosed. The wind turbine generator comprises a nacelle and rotor, and a tower between said nacelle and a foundation.
Forida Development A/s

Damping mechanical oscillations of a wind turbine

provided is a method of damping mechanical oscillations of plural wind turbines of a wind park commonly supplying electric energy to a grid, the method including: determining, for each of the plural wind turbines, a damping control signal for counteracting an oscillation of the respective wind turbine; supplying at least a subset of or a subset of modified versions of the damping control signals to respective wind turbines such that a sum of the supplied damping control signals is lower than a threshold.. .
Siemens Aktiengesellschaft

Control for a wind turbine

a method of controlling a wind turbine having a nacelle, a rotor, a rotating hub, a first rotor blade and at least a second rotor blade, both rotor blades being mounted to the hub. The method includes measuring the strain in the first rotor blade by a strain measurement device attached to the first rotor blade; and choosing the operational parameters of the wind turbine based on the measured strain such that fatigue damage of the second rotor blade is reduced.
Siemens Aktiengesellschaft

System and minimizing energy loss due to yaw untwist of a wind turbine

the present disclosure is directed to a method for minimizing energy loss caused by yaw untwist of a nacelle of a wind turbine. The method includes monitoring, via at least on sensor, one or more wind conditions near the wind turbine.
General Electric Company

Grease filter

a grease filter for filtering grease and the use of the grease filter for a bearing in a wind turbine is provided. A grease filter is disclosed for filtering grease used for lubrication.
Siemens Aktiengesellschaft

Wind turbine converter control

a method of controlling a full-scale converter system in which both the grid-side inverter unit and the generator-side inverter unit have a series-connection of parallel inverters and form a generator-side and grid-side voltage-center-point at a voltage level between the inverters connected in series. The voltage-center-points are electrically connected by a center-line conductor.
Vestas Wind Systems A/s

Data acquisition system for condition-based maintenance

generally, a system and method consistent with the present disclosure may provide a relatively low cost, relatively robust data acquisition and analysis system useful for condition-based maintenance. The system may be useful for condition-based maintenance in industrial applications, e.g., of equipment and/or machinery.
Simmonds Precision Products, Inc.

Measuring assembly on a wind turbine

the disclosure relates to a measuring arrangement of a wind power plant having a tower and an aerodynamic rotor with at least one rotor blade, for sensing wind conditions, comprising at least a first and a second measuring device for arrangement at different heights on the tower, and wherein each measuring device is prepared so as to sense, at the respective height at which it is to be arranged, wind values for different horizontal directions, said values being representative of a wind pressure from the respective direction.. .
Wobben Properties Gmbh

Conversion of movable offshore drilling structure to wind turbine application

the present disclosure generally relates to movable offshore platforms for installing wind turbines, and methods of forming the same. The movable offshore platforms are offshore platforms which were previously used in hydrocarbon production, such as jack-up units.
Zentech, Inc.

Gravity foundation for the installation of offshore wind turbines

a gravity-based foundation for the installation of offshore wind turbines, manufactured in a floating dock for towing to the final destination thereof, where it is anchored and finally completely submerged below sea level, comprising a concrete floating caisson, in the shape of a prism, with a hexalobular base, divided into several cells by at least one partition with a significantly circular cross section, concentric with a central cell, determining inner vertical cells interconnected with each other and with the exterior, which is closed at the top by a cover or covers that are removed once the foundation is anchored before being filled with a ballast material.. .
Dragados, S.a.

Wind turbine power generation system

a wind turbine power generation system comprising a rotor shaft coupled to an electrical generator which generates a power output at a first ac voltage level; a converter system that converts the power output of the generator at the first ac voltage level to a converter power output at a second ac voltage level; a transformer that converts the converter system power output at the second ac voltage level to a generation system power output at a third ac voltage level; wherein the converter system comprises a machine-side converter, a line-side converter and a dc-link. The machine-side converter is a line-commutated rectifier, and the transformer is an online tap changer transformer.
Vestas Wind Systems A/s

Solar compression power station

invention relates to the field of solar energy. Power station, which has the air stream directional body, at least a pair of generator connected with wind turbines, tough combined greenhouse to the lower end of the body, the external surface of the of which is painted by matt black paint, and due to invention, it (body) is situated on the slope of the mountain, the greenhouse is being realized in the form of body entrance section, and the entrance of which is widened due to the height and width toward body.

System and controlling offshore floating wind turbine platforms

a method for controlling an inclination of a floating wind turbine platform comprising a generator, a set of turbine blades connected to a shaft inside a turbine nacelle, the turbine nacelle being mounted onto a tower, and at least three stabilizing columns is presented. Each of the at least three stabilizing columns have an internal volume for containing ballast.
Principle Power, Inc.

System and improved overspeed monitoring of a wind turbine operating at reduced rotor speeds

a method for overspeed monitoring of a wind turbine may generally include monitoring an actual rotor speed of the wind turbine while the wind turbine is operating at a current speed setpoint and referencing a dynamic overspeed setting for the wind turbine. The method may also include determining a final overspeed setting to be applied for the wind turbine based on a comparison between the dynamic overspeed setting and a predetermined overspeed setting for the wind turbine.
General Electric Company

Adjusting device for adjusting a rotor blade of a wind turbine

an adjusting device for adjusting an angle of attack of a rotor blade of a wind turbine is provided. The adjusting device comprises at least two dc motors and the at least two dc motors are electrically interconnected in series among one another at least in respective sections of the at least two dc motors..
Wobben Properties Gmbh

Pier and mat foundation fortification and monitoring system

a method of retrofitting a pier/mat foundation and assemblies for same. Retrofitting includes attaching fortification brackets around an outside of a pier of a pier/mat foundation of a wind turbine structure.
Inventus Holdings, Llc

Turbine blade disposal system

a wind turbine blade has a disassembled condition defined by separated blade sections. Each blade section has a residual leading edge remaining from an original leading edge of the blade, a residual trailing edge remaining from an original trailing edge of the blade, and a residual length delimited by a severed edge of the blade.
Logisticus Projects Group

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System and monitoring and controlling wind turbines within a wind farm

in one aspect, a system for monitoring and controlling the operation of wind turbines located within a wind farm may generally include first and second wind turbines. The first wind turbine may include a first turbine controller configured to monitor an operating parameter(s) associated with the first wind turbine and provide a first control interface for controlling the operation of the first wind turbine.
General Electric Company

Improved wind turbine suitable for mounting without a wind turbnie tower

this invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades.

Attachment methods for surface features of wind turbine rotor blades

the present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive..
General Electric Company

Tension cord guide in a wind turbine tower

a device for guiding bracing cables in a tower of a wind turbine. The device comprises at least one guide bracket to be arranged in the tower between a tower wall and at least one of the bracing cables, such that the at least one bracing cable bears against the guide bracket and is thereby guided along the tower wall, and a bracket mount for attaching the guide bracket to the tower wall, wherein the position of the guide bracket in the circumferential direction of the tower along the bracket mount can be changed in order to match the position of the at least one bracing cable..
Wobben Properties Gmbh

Offshore floating structures

an offshore floating structure such as a wind turbine includes a number of improvements. The floating structure can include a chain engaging system configured to prevent any lengthwise movement of a mooring chain.
Atkins Energy, Inc.

Apparatus and methods for displaying and storing a banner or advertisement on a horizontal wind turbine

a kit for securing advertising space to a horizontal wind turbine at a blade height of the horizontal wind turbine, a horizontal wind turbine including the kit, and methods of making and using the same are disclosed. The horizontal wind turbine has blades on a blade side of the turbine, a non-blade side opposite the blade side of the turbine, a tower and a nacelle capable of turning during normal function.

Allaroundearth

(i) allaroundearth logo brand (e-jet & e-sped) product sales a (3g) pledge to a green global goal marketing slogans allow distinguishable and recognizable branding for e-jet, & e-sped, under umbrella logo (allaroundearth).” this allaroundearth logo brand will allow pledges for a global environmental agenda and create green jobs. E-jet green k-12 curriculum leads to green job trade skill & small business upon graduation.

Method and device for determining a position of defects or damage on rotor blades of a wind turbine in an installed state

the invention relates to a method and a device for determining the position of defects or damage on rotor blades (4) of a wind turbine (1) in an installed state, comprising the steps: a. A localisation instrument (5) is guided along the rotor blade (4) and the defect or damage is detected; b.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Control of a multi-rotor wind turbine system using a central controller to calculate local control objectives

the present invention relates to control of a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, i.e. To control of a multi-rotor wind turbine system.
Vestas Wind Systems A/s

Wind turbine system or controlling wind turbine system

to provide a wind turbine system or a method of controlling the wind turbine system capable of securing stability in pitch control when a sudden change of wind speed is detected and preventing increase of a load on equipment to thereby improve reliability. A wind turbine system includes blades rotating by receiving the wind, a pitch drive device controlling a pitch angle of each blade and a control device outputting a control signal for suppressing a movement of the pitch angle to a fine direction to the pitch drive device when an increase in wind speed for a prescribed amount or more is detected while performing pitch angle control so that a rotational speed of the blades or equipment rotating in conjunction with rotation of the blades maintains a rated rotational speed..
Hitachi, Ltd.

Wind turbine with open back blade

turbine systems comprising at least one blade that (i) has a pocket to receive wind and (ii) a closed edge that cuts through the wind with greater efficiency are disclosed. The blades can be stacked along a central hub to increase the effective area of the turbine blade system.

Vertical axis wind turbine

the present invention is a vertical axis wind turbine contained in a housing designed to introduce turbulent flow to increase efficiency. One embodiment of the invention uses a three bladed propeller with deflectors mounted upstream of the propeller to increase the pressure on the trailing edge of the blades.

Lightning current transmission system for wind turbines

a lightning current transmission system in a wind turbine between a metal band located at the root of each blade and a metal ring located at the nacelle through a lightning current transmission element comprising a conductive portion, an insulating portion and a supporting unit to be joined to the rotor hub. The metal band and the metal ring are configured with protruding parts extended towards the lightning current transmission element.
Gamesa Innovation & Technology, S. L.

Receptor for a lightning protection system

a receptor assembly (1; 5) for a lightning protection system for a wind turbine blade (2) is disclosed, comprising electrically conducting current carriers (6; 19) and mounting bolts (9) and/or threaded rods (20), wherein each of the current carriers is a metallic part arranged and dimensioned to surround at least a part of a mounting bolt or a threaded rod without being in electrical contact with the mounting bolt or threaded rod, at least a part of the external surface at one end of each current carrier is arranged to be a contact surface (10) for mechanical and electrical contact to a receptor base (3; 16) in such a way that, in the case of a lightning impact on the receptor, the lightning current passes through the one or more current carriers rather than through the one or more mounting bolts and/or threaded rods on its way through the receptor.. .
Global Lightning Protection Services A/s

Damage detection of a rotor blade of a wind turbine

a method is proposed for detecting damage to at least one rotor blade of a wind turbine, including the following steps, monitoring during rotation of the at least one rotor blade at least one internal air condition inside a blade root of the at least one rotor blade, wherein the internal air condition is affected by a centrifugal effect pumping the air inside the at least one rotor blade from a root end towards a tip end and out of at least one hole of the at least one rotor blade, detecting damage to the at least one rotor blade based on the at least one monitored internal air condition. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are suggested for performing the method..
Siemens Aktiengesellschaft

Method for handling an over voltage ride through event

the present invention relates to a method for operating a doubly fed induction generator wind power facility during an ovrt event, said the wind turbine facility being adapted to inject active and/or reactive current into an associated grid, the method comprising the steps of determining the occurrence of an over voltage grid event, and maintaining a grid-side inverter of the doubly fed induction generator wind power facility fully operable during the over voltage ride though event so as to maintain a controllable active and/or reactive current capability during the over voltage grid event,?. .
Vestas Wind Systems A/s

Muon-catalyzed controlled fusion electricity-generating apparatus and method

a turbine generator for producing electricity is described for use on planets and moons, or corresponding planetary or lunar orbits, where magnetic fields and atmospheres are sufficient low to obtain an adequate ambient flux of cosmic rays and muons for useful micro-fusion. A source of deuterium-containing micro-fusion particle fuel material is supplied via a flue to a columnar reaction volume, where it is dispersed and interacts with incoming cosmic rays and muons.

Mounting segments and a wind turbine with mounting segments

the disclosure relates to a main shaft of a wind turbine with mounting segments. The main shaft includes a shaft portion and a disc portion.

Method of controlling a wind turbine and related system

the present invention relates to a method for controlling a wind turbine, in particular a method for controlling pitch of one or more blades of a wind turbine and related system. The method comprises collecting first data indicative of a dynamic condition of the first wind turbine blade and the rotor, the first data comprising rotor data and first deflection data, the rotor data being indicative of the azimuth position and rotational velocity of the rotor in a rotor plane perpendicular to the rotor axis, and the first deflection data being indicative of the position, speed and acceleration of one or more parts of the first wind turbine blade.
Lm Wp Patent Holding A/s

Offshore energy storage device

the present invention relates to a floating wind energy harvesting apparatus for offshore installation, the wind energy harvesting apparatus comprising: an elongated wind turbine body extending along a longitudinal wind turbine body axis, the wind turbine body comprising a lower body portion to be below a water surface when the wind energy harvesting apparatus is in operation and an upper body portion to be above the water surface when the wind energy harvesting apparatus is in operation; wind turbine blades attached to the upper body portion for converting wind energy to rotation of the wind turbine body around the longitudinal wind turbine body axis; an energy converter attached to the wind turbine body for converting the rotation of the wind turbine body in relation to a non-rotatable part to electrical energy; and anchorage means connecting the non-rotatable part to at least one anchor point via at least one float body.. .
Sea Twirl Ab

Wind turbine tower section, wind turbine tower and assembly method

the present invention provides a tower section for a wind turbine which includes at least two tower elements stacked and arranged edge-to-edge at a joining plane, each tower element includes at least two wall segments, connected to one another by first connectors. The tower section further includes second connectors each extending astride the two adjacent tower elements along the longitudinal direction.
Arcelormittal

Modular transportation and storage system for a wind turbine rotor blade

the present invention relates to a modular transportation and storage system for a wind turbine rotor blade comprising a first and a second tip end receptacle (112, 160) for supporting the blade, a tip end frame (111) for receiving any of the first and second tip end receptacles, wherein the first tip end receptacle (112) is adapted for supporting the blade (10) in a substantially vertical position, and wherein the second tip end receptacle (160) is adapted for supporting the blade in a substantially horizontal position.. .
Lm Wp Patent Holding A/s

Wind farm inertial response

the present invention is concerned with an operation of a wind farm with a plurality of wind turbines in view of a dynamic frequency response. According to the invention, dynamic frequency support and power production for all wind turbines in a wind farm are handled concurrently in a single optimization step and taking into account wake effects within the wind farm as well as optional wind forecast information.
Abb Schweiz Ag

Method for controlling a synchronous generator of a gearless wind energy turbine

a method for controlling a synchronous generator of a gearless wind turbine is disclosed. The synchronous generator has an electrodynamic rotor and a stator for producing electrical power by rotating the rotor relative to the stator.
Wobben Properties Gmbh

Alternative energy bus bar by pass breaker

the present invention is directed, in part, to electrical components and methods of use associated with such components. In particular, the invention relates to an electrical device and improved method of back feeding energy generated from alternative energy devices such as solar panels, wind turbines, fuel cells, electrical generators and other alternative energy sources, to the utility without the necessity of installing a sub panel or replacing an existing panel, resulting in significant cost savings for the user and increased electrical energy available to the power grid.
Qfe 002 Llc

Method and means for mounting wind turbines upon a column

a variable level, relatively mobile wind power system consists of small, personal use wind turbines mounted upon an axis without need for a concrete mounting platform. As needed, the axis may be brought to the desired level upon a column and retracted to the ground for servicing.

System and methodology for wind compression

a wind compressor system having one or more wind turbines and a plurality of wind compressors located proximate the one or more wind turbines. The wind compressors optimize the energy created by the wind turbines by redirecting and converging the wind from the wind compressor to the wind turbines.
Hover Energy Llc

Damping oscillations in a wind turbine

embodiments herein describe using a tower damping system to reduce oscillations in a wind turbine. To do so, the dampening system may use a metric that is decoupled from the activation strategy in order to control the blade pitch and avoid or mitigate feedback loops.
Vestas Wind Systems A/s

Method for operating a wind turbine

a method for operating a wind turbine comprising an aerodynamic rotor with an approximately horizontal axis of rotation, an electrical generator and operating devices is disclosed, wherein the wind turbine is intended for feeding electrical energy into an electrical supply grid, and is kept in a starting state for starting the generator while the wind turbine cannot be completely put into operation, in particular the generator cannot be started.. .
Wobben Properties Gmbh

Synchronous generator for wind turbine

this invention relates to a synchronous generator for wind turbines comprising a rotor (20) and a stator (10), wherein the stator (10) comprises a plurality of induction coils (11) of a high-temperature superconducting material arranged to generate a magnetic field. The use of the superconducting stator, instead of a superconducting rotor, allows simplifying the refrigeration system, thus eliminating, for example, the rotating joints for cryogenic gas and the rotating joints for high-purity helium gas..
Gamesa Innovation & Technology, S.l.

Wind sensor support assembly for a wind turbine

a wind sensor support assembly for a wind turbine is provided. The assembly includes a holding member for holding a wind sensor, and a support structure for supporting the holding member, the support structure being adapted to be fastened to an upper part of a wind turbine, wherein the support structure is adapted to allow adjustment of the position of the holding member relative to the upper part of the wind turbine.
Siemens Aktiengesellschaft

System and estimating wind coherence and controlling wind turbine based on same

the present disclosure is directed to a system and method for estimating an overall wind coherence acting on a wind turbine and using same to dynamically adapt the gain or bandwidth of pitch or torque or yaw control logic within a wind turbine. The method includes generating, via sensors, a plurality of sensor signals reflective of wind conditions near the wind turbine.
General Electric Company

Controlling rotational speed by changing blade profile

provided is a method of controlling a rotational speed of a rotor of a wind turbine having a rotor with blades connected thereon, at least one blade including a blade profile changing equipment, the method including: changing the blade profile dependent on a rotational speed deviation of an actual rotational speed of the rotor or the generator rotor from a reference rotational speed.. .
Siemens Aktiengesellschaft

Wind turbines with reduced electromagnetic scattering

a wind turbine with reduced electromagnetic scattering includes a wind turbine support structure having a cylindrical shape, a wind turbine blade supported by the wind support structure, and a plurality of multi-layer absorbers to limit the electromagnetic scattering, the absorber including at least cobalt ferrite alloy nano-particles, cobalt ferrite alloy nano-flakes, and air. The wind turbine blade includes a blade root, a blade tip opposite the blade root, and a blade middle part extending between the blade root and the blade tip.
King Abdulaziz University

Pre-cured rotor blade components having areas of variable stiffness

the present disclosure is directed to a rotor blade component for a wind turbine. The rotor blade component includes a plurality of pre-cured members arranged in one or more layers.
General Electric Company

Hollow forging process for main shaft of large wind turbine generator

a hollow forging process for main shaft of large wind turbine generator, wherein, comprising the following steps as: the first step of cutting off the dead head and the bottom of an ingot; the second step of upsetting and punching a hole; the third step of drawing-out; and the fourth step of local upsetting, drawing-out and shaping-up. In the fourth step, the forged piece is shaped up by local upsetting and drawing-out through a turnplate.
Jiangyin Zenkung Forging Co., Ltd.

Seaworthy, watertight, floatable container for an offshore wind turbine maintenance program

a container for maintenance capsule as a component of a maintenance system for an offshore wind turbine maintenance program. The container transports tools, parts and maintenance personnel to and from respective wind turbine towers.

Wind turbine main shaft bearing and upgrading a main shaft bearing

a wind turbine bearing system for a rotating main shaft of a wind turbine includes a double-row tapered roller bearing assembly (64) having a one-piece inner race element. The inner race element defines first and second inner raceways.
The Timken Company

Floating wind turbine platform structure with optimized transfer of wave and wind loads

a structure of a floating, semi-submersible wind turbine platform is provided. The floating wind turbine platform includes three elongate stabilizing columns, each having a top end, a keel end, and an outer shell containing an inner shaft.
Principle Power, Inc.

Automatic and intelligent clutch-type wind turbine system

an automatic and intelligent clutch-type wind turbine system clutch-type wind turbine system is revealed. A rotor-blade base is disposed with rotor blades and connected to a main shaft.

Adjustment unit for adjusting the pitch of a rotor blade, and wind turbine with such an adjustment unit

the present invention relates to wind turbines with variable rotor blades whose pitch angles are adjustable. An adjustment unit is provided for adjusting the pitch angle of the rotor blades with a pivot bearing comprising at least two coaxial bearing rings that are rotatable against each other, at least one adjustment actuator for rotating the two bearing rings, and a supply unit for supplying the adjustment actuator with energy, whereby the adjustment actuator and the supply unit are disposed on opposite sides on a plate-shaped adjustment drive carrier part which is rotatably connected with one of the bearing rings and comprises a rotatable support bearing for the support of the adjustment actuator.
Liebherr-components Biberach Gmbh

Vane device for a wind turbine apparatus

a vane device includes a rotary shaft and a plurality of vane units angularly spaced apart from each other relative to the rotary shaft. Each of the vane units includes a grid frame that has grid spaces, and a plurality of vanes respectively disposed adjacent to the grid spaces.

Jointed rotor blade for wind turbine

a spar cap assembly for a jointed rotor blade of a wind turbine includes a root spar cap assembly and a tip spar cap assembly. The root spar cap assembly includes a root tensile spar cap and a root compressive spar cap, and is formed from a first composite material.
General Electric Company

Adjustment unit for adjusting the pitch of a rotor blade, and wind turbine with such an adjustment unit

the invention relates to wind turbines with variable rotor blades whose pitch angle can be adjusted, wherein an adjustment unit for adjusting the pitch angle of a wind turbine rotor blade with a pivot bearing comprising at least two coaxial bearing rings that are rotatable against each other, at least one adjustment actuator for rotating the two bearing rings against each other, and a supply unit for supplying the adjustment actuator with energy, wherein the at least one adjustment actuator and the supply unit are disposed on opposite sides on a plate-shaped adjustment drive carrier part which is directly or indirectly rotatably connected with one of the bearing rings and comprises a rotatable support bearing for the rotatable support of the adjustment actuator on the carrier part. The supply unit is connected with the adjustment actuator by at least one pressurized-media channel passing through the support bearing..
Liebherr-components Biberach Gmbh

Electricity generator powered by air exhaust

an electricity generator is mounted on an air exhaust port of a cooling tower and contains a delivery pipe and a wind turbine. The delivery pipe includes an air inlet and an air outlet opposite to the air inlet, and the air inlet corresponds to the air exhaust port of the cooling tower.

Method for improving large array wind park power performance through active wake manipulation reducing shadow effects

embodiments of the present invention provide methods and apparatus for increasing turbulent mixing in the wake of at least one wind turbine. Doing so, increases efficiency of a wind turbine located in the wake by transferring energy to the wake that was lost when the wind passed through the upwind turbine.
Vestas Wind Systems A/s

Modular active structural vibration suppression for wind turbine blades

systems, methods, and kits for reducing structural vibrations on wind turbine blades are provided. The actual dynamic structural conditions of a wind turbine blade can be used as a feedback mechanism.
Rensselaer Polytechnic Institute

Method for operating a wind turbine

a method for operating a wind turbine is disclosed. The rotational speed and power of the wind turbine are reduced when the prevailing wind speed exceeds a predetermined first limit value.
Wobben Properties Gmbh

Psp blades with dihedral angles, comprising a longitudinal depression

the invention relates to a novel rhomboidal wind turbine blade with a dihedral angle, as a supplement to another invention filed by the same applicant in 2013, said blade originally comprising four planar rhomboidal sides and a dihedral angle, and now including a longitudinal depression in the side forming the dihedral angle, from the center of the major axis of the blade, which traps more wind with a concave shape and directs same to the vertex of the angle, compressing the wind which rebounds from the vertex of the angle and powering the rotary movement with two sets of two blades per generator, as well as including an automatic safety system allowing the position of the blades to be changed in the event of high-speed winds by a computer system between a motor and a wind speed sensor, with the blades being coupled to the rotor with an angle that can be varied in response to high-speed winds.. .

Method for balancing segmented wind turbine rotor blades

a method for balancing segmented rotor blades for a wind turbine may include determining a weight for each of a plurality of blade segments, wherein each blade segment extends between a first end and a second and is configured to form a common spanwise section of a segmented rotor blade between the first and second ends. The method may also include determining an initial static moment for each blade segment based on the weight of the blade segment, wherein the initial static moment of at least one of the blade segments differing from the initial static moments of the remainder of the blade segments.
General Electric Company

Automated receptor system

provided is an automated receptor system of a sling-receiving element for gripping a connection device of a sling of a blade gripping device for gripping a rotor blade, in particular a rotor blade of a wind turbine, which automated receptor system includes a receptor for connecting the connection device to the sling-receiving element and a drive system for pivoting the receptor for coupling the connection device to the sling-receiving element and for decoupling the connection device from the sling-receiving element. Further a sling-receiving element and a blade gripping device are described.
Siemens Aktiengesellschaft

Method and producing a preform

a method and an apparatus for producing a preform for a rotor blade of a wind turbine. The method comprises the steps of providing at least one semifinished textile product on at least one roll, applying a binder onto the semifinished textile product and/or heating the semifinished textile product, draping the at least one semifinished textile product from the at least one roll onto a core, and curing the semifinished textile product after the draping on the core.
Wobben Properties Gmbh

System and controlling a negative sequence current in a wind turbine generator

the present disclosure is directed to a system and method for controlling an electrical power system connected to a power grid. The method includes determining, via a negative sequence regulator programmed in a controller of the electrical power system, a negative sequence component of at least one electrical condition of the electrical power system.
General Electric Company

Electric generator having multiple electrical machines

an electric generator that converts mechanical energy to electrical energy includes, among other things, a first axial flow electrical machine that includes a first rotor mounted in rotation about a first axis and surrounding a first stator; a second axial flow electrical machine that includes a second rotor coaxial to the first rotor and surrounding a second stator; and first azimuthal securing means that joins together the first and second rotors so that the first and second rotors can be simultaneously set in rotation about the first axis. The electrical generator may be used as part of a wind turbine..
Ddis

Device and detecting defect in main shaft of wind turbine

the present disclosure provides a device and method for detecting a defect in a main shaft of a wind turbine. The device includes: an excitation source, configured to generate an electromagnetic ultrasonic guided wave signal; a nickel strap, magnetized and disposed on an outer surface of an end of the main shaft; a coil, disposed at the nickel strap, configured to receive the electromagnetic ultrasonic guided wave signal such that the electromagnetic ultrasonic guided wave signal propagates in the main shaft, the coil and the nickel strap being configured to transform the electromagnetic ultrasonic guided wave signal propagating in the main shaft into an electrical signal by electromagnetic induction; a signal collector, configured to collect the electrical signal and transform the electrical signal into guided wave detection data and a wireless communication component, configured to transmit the guided wave detection data to a remote equipment..
Tsinghua University

Wind turbine with improved cooling

a wind turbine including a nacelle supported by a tower, a generator, a rotatable front assembly arranged on a side of the generator facing away from the nacelle, and a cooling system for cooling the generator by feeding cooling air from the rotatable front assembly to the generator is provided. Furthermore, a method of cooling a generator of a wind turbine is described..
Siemens Aktiengesellschaft

Adapters for wind turbine refurbishment

a method for refurbishing a wind turbine includes removing an existing machine head from the wind turbine, and providing a new machine head and an adapter. The new machine head includes a base frame, and further includes a plurality of fastener holes defined in the base frame.
General Electric Company

System and automatically updating wind turbine data based on component self-identification

a method for automatically updating data associated with a wind turbine based on component self-identification may generally include providing instructions for transmitting a polling signal to an identification sensor associated with a wind turbine component and, in response to the transmission of the polling signal, receiving current configuration data for the wind turbine component from the identification sensor. The method may also include comparing the current configuration data received from the identification sensor to last-known configuration data for the wind turbine component and automatically updating one or more parameter settings associated with operating the wind turbine based on any differences identified between the current configuration data and the last-known configuration data..
General Electric Company

Fluid turbine systems

various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy.
California Energy & Power

Wind turbine

a wind turbine including a plurality of substantially similar vertically extending blades with a semi-circular profile, wherein each of such blades is divided into two adjacent compartments; an upper plate; a lower plate; and an electric generator with a gear box. The wind turbine may also include a braking mechanism to control the rotational speed of the blades such that the produced electrical parameters are below the rated characteristics of the electric generator..

System and locating airflow modifiers for installation on a wind turbine rotor blade

a system for locating airflow modifiers for installation on wind turbine rotor blades may generally include a plurality of airflow modifiers, with each airflow modifier including a base defining an outer profile that differs from the outer profiles of the remainder of the airflow modifiers. The system may also include a blade shell defining an exterior surface.
General Electric Company

Vortex generators for wind turbine rotor blades

the present disclosure is directed to a vortex generator configured for mounting to either of a suction side or a pressure side of a rotor blade. The vortex generator includes a base portion having a contour in an uninstalled state that substantially aligns with or conforms to a contour of a plurality of locations of either on the suction side or the pressure side of the rotor blade.
General Electric Company

Wind turbine blade, wind turbine rotor, wind turbine power generating apparatus, and mounting vortex generator

a wind turbine blade includes a blade body; and a vortex generator mounted to a surface of the blade body. The vortex generator includes a plurality of fin sets, each fin set including a plurality of fins disposed to protrude from the surface of the blade body at different positions from one another in a blade spanwise direction.
Mitsubishi Heavy Industries, Ltd.

Battery-supported braking system for a wind turbine

the present disclosure is directed to a protection system for a wind turbine power system connected to a power grid. The protection system includes a main brake circuit having at least one brake resistive element and at least one brake switch element, a battery system, and a controller.
General Electric Company

Temporal bias correction in wind forecasting

a set of characteristics of a period is extracted from a forecast that is applicable to the period and a geographical area. From a repository, a set of historical data is selected corresponding to a historical period, the set of historical data including a historical forecast related to the geographical area, and an actual measurement of wind at a location in the geographical area, the set of historical data having a subset of the set of characteristics.
International Business Machines Corporation

Bearing arrangement

a bearing arrangement of an electrical machine is provided that includes a drive shaft extending through a housing, the bearing arrangement including a front-end bearing arranged about a front end of the drive shaft, and a back-end bearing arranged about an opposite end of the drive shaft, wherein a bearing includes a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing includes an uneven distribution of bearing pads about the drive shaft. Furthermore, a wind turbine including such a bearing arrangement is also provided..
Siemens Aktiengesellschaft

Method of construction, assembly, and launch of a floating wind turbine platform

a method of constructing and assembling a floating wind turbine platform includes constructing pre-stressed concrete sections of a floating wind turbine platform base, assembling the floating wind turbine platform base sections to form the base at a first location in a floating wind turbine platform assembly area, and moving the base to a second location in the floating wind turbine platform assembly area. Pre-stressed concrete sections of floating wind turbine platform columns are constructed, and the column sections are assembled to form a center column and a plurality of outer columns on the base to define a hull at the second location in the floating wind turbine platform assembly area.
University Of Maine System Board Of Trustees

Offshore deployable floating wind turbine system and method

a method and system for installing a site-deployable wind turbine offshore. The wind turbine can be substantially assembled onshore and includes a floating structure and a tower that is extendable at the installation site.
Gaia Importacao, Exportacao E Servicos Ltda

Offshore deployable wind turbine system and method with a gravity base

a method and system for installing a site-deployable wind turbine offshore. The wind turbine can be substantially assembled onshore and includes a gravity base and a tower that is extendable at the installation site.
Gaia Importacao Exportacao E Servicos Ltda

Airborne wind turbine tether termination systems

an airborne wind turbine (“awt”) may be used to facilitate conversion of kinetic energy to electrical energy. An awt may include an aerial vehicle that flies in a path to convert kinetic wind energy to electrical energy.
X Development Llc

Bolt connection for a tower of a wind turbine

a bolt connection of a tower for a wind turbine is provided, the bolt connection including a tower base module with a tower flange, wherein the tower flange forms the bottom end of the tower, a base flange for connecting the tower base module with a foundation, wherein the base flange includes a traverse bore, and a bolt which extends through the traverse bore of the base flange, wherein the bolt includes a bolt head which is arranged at the bottom side of the base flange facing the foundation. The bolt connection further includes a clamping element which at least partially covers the bolt head.
Siemens Aktiengesellschaft

System and controlling a wind turbine

the present disclosure is directed to a method for controlling a wind turbine having a rotor with a plurality of rotor blades mounted thereto based on a spatial wind speed distribution. The method includes monitoring, via at least one sensor, one or more operating conditions of the wind turbine.
General Electric Company

Access panel for a wind turbine tower and securing same

the invention relates to a wind turbine tower access panel, which panel is removably fixable at a service aperture in a tower wall to thereby close said aperture; said access panel being generally planar and extending radially about an axis normal thereto, said access panel comprising a set of two or more fixing elements configured to securely fix said access panel in place at a said aperture; wherein each said fixing element comprises an axial clamp, said clamp comprising an anchor fixed to said access panel, a clamping force adjuster and a clamp head having a clamping surface; said clamp head comprising a relatively deformable resilient material which deforms under an applied clamping load of said clamp thereby applying a clamping force to said tower wall.. .
Vestas Wind Systems A/s

Structures for offshore installations

a structure for mounting offshore installations such as wind turbines or oil and gas platforms. The structure comprises a base, a top piece, and a lattice structure connecting the base to the top piece.
Owlc Holdings Ltd.

Wind turbine access panel and securing same

the invention relates to an access panel configured for fixing to a service aperture in a wind turbine tower wall; wherein the access panel comprises a main panel and an adjacent sub-panel; the sub-panel comprising a bearing surface at an edge thereof; the main panel comprising a reference surface at an edge thereof; the main panel and the sub-panel being abuttable along a common seam; the seam comprising a said sub-panel bearing surface abutting a main panel reference surface; the main panel being dimensioned to close a main region of a tower wall aperture whereas the sub-panel is dimensioned to close a first sub-region of the aperture. The invention includes a method according to which the sub-panel is placed into a tower wall aperture and adjusted to bring its bearing surface into a predetermined position.
Vestas Wind Systems A/s

Hybrid wind-solar power generation system

electrical power may be generated by a system employing wind and solar energy capturing means. A wind turbine can be connected to a controller and have at least one blade connected to an electrical generator.

A wind turbine with a rotor comprising a hollow king pin

a wind turbine (11) comprising a tower structure (12, 13) and two or more rotors (1). Each rotor (1) comprises a hollow king pin (2) and a hub (4) carrying one or more rotor blades (14).
Vestas Wind Systems A/s

A wind turbine comprising two or more rotors

a multirotor wind turbine (1) comprising a tower structure with a main tower part (2) and at least two arms (3), each arm (3) extending away from the main tower part (2) along a direction having a horizontal component. Two or more rotors (4) are mounted on the tower structure in such a manner that each arm (3) of the tower structure carries at least one rotor (4).
Vestas Wind Systems A/s

A wind power plant

a wind power plant comprises a platform having a deck and a frame. The frame comprises a plurality of generator stations, each configured for receiving and supporting a respective removable wind turbine generator.
Quick Response As

System for membrane assisted humidity harvesting from a feed flow, wind turbine provided therewith and method there for

the invention relates to a system for membrane assisted humidity harvesting, a turbine provided therewith and method therefor. The system according to the invention comprises:—a membrane unit with: a membrane, a feed flow inlet and a feed flow outlet on a first side of the membrane, and a recirculation inlet and a recirculation outlet on a second side of the membrane; wherein the membrane is configured to allow vapor to permeate through the membrane from the first side to the second side of the membrane; a condensing system provided on the second side of the membrane, configured for condensing vapor; and a recirculation pump configured for producing a recirculation flow on the second side of the membrane..
Rainmaker Worldwide Inc.

Hydrogen oxidation and generation over carbon films

an electrode comprises an acid treated, cathodically cycled carbon-comprising film or body. The carbon consists of single walled nanotubes (swnts), pyrolytic graphite, microcrystalline graphitic, any carbon that consists of more than 99% sp2 hybridized carbons, or any combination thereof.
University Of Florida Research Foundation, Inc.

Tower damper

an arrangement comprising a tower of a wind turbine and a damping device, wherein the tower is situated on a surface. Notably, the damping device is arranged between the tower and the surface.
Siemens Aktiengesellschaft

Control system for damping structural vibrations of a wind turbine system having multiple rotors

a wind turbine system comprising a plurality of wind turbines mounted to a support structure including a tower, wherein each of the plurality of wind turbines includes a rotor and a power generation system driven by the rotor, and at least one of a rotor blade pitch adjustment means and a generator power control means. The system further includes control means that receives vibration data associated with the support structure and which is configured to determine a damping control command for a respective one of the plurality of wind turbines, wherein the or each of the wind turbines includes a damping controller that receives a damping control command and which is operable to apply a damping control input to one or both of the blade pitch adjustment means and the generator power control means so as to counteract the measured vibration of the support structure.
Vestas Wind Systems A/s

Rotor blade pitch arrangement

a blade pitch arrangement of a wind turbine is provided having a number of blade shafts extending radially outward from a hub and a rotor blade mounted around each blade shaft, which blade pitch arrangement includes a toothed ring arranged at the root end of each rotor blade; and a pitch drive unit for each rotor blade, having a driver body and a pinion realized to engage with the toothed ring of a rotor blade; wherein a pitch drive unit is arranged relative to its corresponding rotor blade such that the pinion is positioned closest to the hub, and the driver body extends in a direction radially outward from the hub. A wind turbine is also described..
Siemens Aktiengesellschaft

Systems and methods to correct induction for lidar-assisted wind turbine control

methods, apparatus, systems and articles of manufacture are disclosed to provide wind turbine control and compensate for wind induction effects. An example method includes receiving wind speed data from a light detecting and ranging (lidar) sensor.
General Electric Company

Turbine for vertical axis wind generator

a turbine for a vertical axis wind turbine generator includes a supporting structure rotating about a central axis; at least one blade, which is elongate in a longitudinal direction, operatively parallel to the central axis and connected to the supporting structure so as to rotate about the central axis along an operating trajectory, in a rotation direction, wherein the blade, has a wing having an aerofoil defining a head and a tail, wherein the head leads the tail in the rotation direction, and includes a deflector having an aerofoil defining a head and a tail, wherein the head leads the tail in the rotation direction, positioned along the operating trajectory with its tail proximal to the head of the wing and oscillating about a tilt axis which is parallel to the longitudinal axis of the blade and passes through the head of the deflector.. .
Energietiche S.r.l.

Hub and rotor assemby for wind turbines with conjoined turbine blades

a hub and rotor assembly for wind turbines which include one or more conjoined blades. Each conjoined blade comprises two separate blade sections that are affixed together by a plurality of dividers or spacers.

Wind power generating equipment, operation method thereof, and wind farm

wind power generating equipment includes: a generator that is driven by a blade which rotates by receiving the wind; a power converter that converts an electric output of the generator such that the output is interconnected with an electric power system; a power converter controller that controls the power converter; and a wind turbine control board that transmits, to the power converter controller, an active power command value that is used as a command value of the electric output which is transmitted from the power converter. The power converter controller controls the output of the power converter in response to an active power command value, depending on a reduction amount of a system voltage when instantaneous reduction occurs in the system voltage interconnected with the wind power generating equipment.
Hitachi, Ltd.

Wind turbine

a wind turbine is provided, including a hub, a blade shaft which is connected to the hub, a rotor blade which is connected to the blade shaft, a fixed bearing arrangement which is arranged at a blade end) of the blade shaft, and a floating bearing arrangement which is arranged at a hub end of the blade shaft, wherein the bearing arrangements enable a rotational movement of the rotor blade relative to the blade shaft. One advantage of the wind turbine including the bearing arrangements is that a better distribution of the loads is achieved.
Siemens Aktiengesellschaft

Wind turbine with lightning protection system

the present invention relates to a wind turbine comprising a lightning protection system comprising a waveguide interconnecting a communication device and a signal-carrying structure. In other aspects, the present invention relates to the use of a waveguide in a lightning protection system of a wind turbine, a power splitter and its use in a lightning protection system of a wind turbine..
Lm Wp Patent Holding A/s

Vertical axis wind turbine system with one or more independent electric power generation units

a vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height of the mast by a winch system; and are selectively interlocking with the mast to fix the turbine units in parked positions.
Vert Nova, Llc

Wind turbine

a wind turbine is described which includes a support structure, a rotor which includes one or multiple rotor blades and which is situated on the support structure so that the rotor is freely rotatable about a rotation axis, and a generator which is connected to the rotor and which converts the wind energy into electrical energy when the rotor is rotating. The support structure includes a stationary ring on which the rotor is rotatably guided and on which the stator of the generator is situated..
Mega Windforce Ip Bv I/o

Wind turbine rotor blade with vortex generators

a rotor blade of a wind turbine including at least one vortex generator is provided. The vortex generator is attached to the surface of the rotor blade and is located at least partially within the boundary layer of the airflow flowing across the rotor blade.
Siemens Aktiengesellschaft

Wind turbine

a wind turbine, including a hub, a blade, a blade bearing which is connected to the hub and which enables a rotational movement of the blade relative to the hub, and an adjustment device for adjusting a pitch angle of the blade, wherein the adjustment device includes at least one actuator and wherein an effective direction of an adjustment force of the at least one actuator when adjusting the pitch angle of the blade is tilted in an angle relative to a bearing plane of the blade bearing. One advantage of the wind turbine is that the adjustment force for adjusting the pitch angle is transmitted directly into the blade bearing or the bearing plane.
Siemens Aktiengesellschaft

Partial and full load controllers of a wind turbine

the invention relates to a method for controlling a wind turbine in partial and full load. In order to avoid disadvantages of switching between partial and full load controllers, the wind turbine control system is configured so that both the partial and full load controller provides control action during partial and full load.
Vestas Wind Systems A/s

Wind turbine wake steering apparatus

systems and methods enable yaw offsets on wind turbines in a wind farm. A wind turbine yaw controller receives a present wind direction signal from a local wind direction sensor and aligns the wind turbine in a substantially perpendicular direction based upon the present wind direction signal.
Inventus Holdings, Llc

Wind turbine system

a wind turbine system to provide electrical power in areas not connected to the electrical power grid. The wind turbine system includes a frame and a rotatable shaft supported by the frame.

Fiber-reimforced molded bodies made of expanded particle foam material

the present invention relates to a molding made of expanded bead foam, wherein at least one fiber (f) is partly within the molding, i.e. Is surrounded by the expanded bead foam.
Basf Se

Production mold for a rotor blade

a production mold for a rotor blade of a wind turbine is provided, having two mold half-shells each with an open side and arranged in a retaining device, wherein the two retaining devices are connected to one another in an articulated manner and can be swung back and forth from an open position, in which the two mold half-shells are arranged one beside the other with their open sides oriented upward, into a closed position, in which the two mold half-shells are arranged one above the other with their open sides oriented toward one another, with a plurality of two-component closures, of which the one component is arranged on the first retaining device and of which the other component is arranged on the second retaining device, and wherein the two components can be closed and opened again by means of at least one actuator, by way of at least two separate movements of the component or of the two components.. .
Senvion Gmbh

Wind turbine, wind turbine communication system, and operating a bus system

a wind turbine having a controller area network communication system is provided. Electrical and/or electronic components of the wind turbine are coupled to can nodes.
Wobben Properties Gmbh

Stress-strain testing system for large-diameter steel pipe pile of offshore wind turbine and construction method

the present invention relates to a stress-strain testing system for a large-diameter steel pipe pile of an offshore wind turbine and a construction method, comprising a steel pipe pile, wherein copper belt type sensor cables are correspondingly welded on both sides of the steel pipe pile along an axis direction; each sensor cable is sequentially covered with an epoxy adhesive, gold foil paper and an angle steel welded on the steel pipe pile centering on the copper belt type sensor cable; a fiber core of each copper belt type sensor cable is transferred into a high-strength armored optical cable by a special fixture and then is led out; and the high-strength armored optical cable is connected with a brillouin optical fiber demodulator. The present invention is applicable to the field of foundation engineering testing and detection technology..
Powechina Huadong Engineering Corporation Limited

Solar light with wind turbine generator

a solar light assembly includes an electrical mount configured for electrically mounting thereon a light device. The electrical mount is positioned underneath a first protective cover, and a wind turbine is mounted above the first protective cover and underneath a second protective cover.

Unmanned aerial vehicle wind turbine inspection systems and methods

methods, systems and apparatus, including computer programs encoded on computer storage media for an unmanned aerial vehicle (uav) wind turbine inspection system. One of the methods includes obtaining first sensor information by an unmanned aerial vehicle (uav), the first sensor information describing physical aspects of a wind turbine, including one or more blades of the wind turbine.
Unmanned Innovation, Inc.

Wind turbine with wind sensor

a wind turbine including a rotor, a nacelle, a generator, and a wind sensor is provided, wherein the wind sensor is arranged above a part of the generator that extends between the rotor and the nacelle. Furthermore, a wind farm including a plurality of interconnected wind turbines is described.
Siemens Aktiengesellschaft

Method for replacing the blades of a wind turbine to maintain safe operation

an amount of the deflection of the blades of a rotor of a wind turbine of the type including a tower and a nacelle mounted to the top of the tower, the rotor being rotatably connected to the nacelle for rotating about a rotor axis and having a plurality of equally spaced blades includes positioning video cameras on the rotor at a root of a respective one of the blades so as to provide a line of sight of the camera along the respective one of the blades to the tip to obtain a video image of the rotor and tip and carrying out an analysis of the images of the tip to determine a position of the tip and hence the deflection of the tip time synchronized analyzed optionally with external data providing load, capacity, power produced or environmental data.. .

Wind turbine tower

a wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an opposite, second end attached to the tower at an attachment element.
Vestas Wind Systems A/s

Method of handling a wind turbine rotor blade pitch bearing unit

a method of handling the pitch bearing unit of a rotor blade mounted to the hub of a wind turbine, the method including the steps of providing an extension assembly at the interface between the rotor blade and the hub, moving the rotor blade outward from the hub by means of the extension assembly to open a gap large enough to accommodate the pitch bearing unit while maintaining a connection between the rotor blade and the hub, and removing the pitch bearing unit through the gap.. .
Siemens Aktiengesellschaft

Power producing walls

a power generating wall design, which may include a plurality of turbines, such as wind turbines, arranged in a wall pattern and arranged to have an entrance flow on one side of the wall and an exit flow on another side of the wall. One exemplary embodiment of a power generating wall may incorporate wind turbines, and may be used in a high-wind environment, such as a highway.

Methods and systems for feedforward control of wind turbines

a method for constrained control of a wind turbine includes receiving a plurality of operating parameters corresponding to the wind turbine. The plurality of operating parameters includes a wind preview parameter and a plurality of constraint parameters.
General Electric Company

Calibrating a wind vane of a wind turbine

a method of determining an offset angle to the wind direction measured from a wind vane of a wind turbine includes the steps of: defining a plurality of power bins representing an interval of power which can be produced by the wind turbine, calculating an efficiency of the wind turbine for a plurality of time slots, determining a power output of the wind turbine for the plurality of time slots, comparing the efficiency of the wind turbine in two different time slots, and updating a value of the one of the power bins representing the interval of power determined for one of the compared time slots. The value of the power bin is updated with the result of the highest efficiency or a value derived from the highest efficiency multiplied with a constant..
Kk Wind Solutions A/s

Wind turbine with rotational air guides

wind turbine according to the invention has at least one movable guide consisting of two rectangular wings (14) and (15) set in one plane and fixed with one edge to mounted shaft (11) set parallel to the axis of the turbine (2) and in such way that the edge of the first wing (14) is tangential, with small space, to the edge of the bar (10) which is an extension of the guide vane (4) of the body (3) and is set in the same plane as guide vane (4), where the edge of the first wing (14) rests on resilient members (16) fixed to the bar (10), and spread of the second wing (15) is smaller than the spread of the first wing (14) and the shaft (11) is connected to drive mechanism (13) equipped with positional switch, where the drive mechanism (13) is connected to control system.. .

Morphing segmented wind turbine and related method

a downwind morphing rotor that exhibits bending loads that will be reduced by aligning the rotor blades with the composite forces. This reduces the net loads on the blades which therefore allow for a reduced blade mass for a given maximum stress.
University Of Virginia Patent Foundation

Erosion resistant coatings

an erosion resistant article such as rotor blades for helicopters and wind turbines having the leading edge surface protected from damage from high speed impingement of rain or sand with a protective coating formed from specific polyurethane or polyurea coating having a defined set of minimum physical properties where the protective coating can be applied as a liquid coating and cured in place or as a preformed complementary shaped covering to protect the leading edge against erosion damage in service.. .
Hontek Corporation

Anti-oscillation apparatus and technique for securing wind turbine blades against oscillations

the invention relates to a wind turbine blade oscillation preventer comprising an aperture and a sleeve and having a peripheral extent and a longitudinal extent, the preventer being configured for removable application over a wind turbine blade and configured to extend longitudinally thereover and peripherally thereabout; the preventer having a non-aerodynamic exterior surface which exhibits a rough surface capable of disrupting smooth or laminar airflow over a substantial portion of the longitudinal and peripheral extent of the sleeve when the preventer is in place on a wind turbine blade. The preventer further comprises a smooth interior surface extending along a substantial portion of the longitudinal extent of the sleeve.
Vestas Wind Systems A/s

A operating a wind turbine

the present invention provides a method of operating a wind turbine. The wind turbine comprises at least one rotatable blade.
Vestas Wind Systems A/s

System and adjusting environmental operating conditions associated with heat generating components of a wind turbine

a system for adjusting environmental operating conditions associated with heat generating components located within a tower of a wind turbine may include a heat generating component located within an interior of the tower, a sensor configured to monitor a heat exchange parameter associated with the wind turbine and a split heat exchange system provided relative to the tower. The split heat exchange system may include a first heat exchanger located within the interior of the tower and a second heat exchanger located exterior to the tower.
General Electric Company

System and assessing farm-level performance of a wind farm

the present disclosure is directed to a system and method for assessing farm-level performance of a wind farm. The method includes operating the wind farm in a first operational mode and identifying one or more pairs of wind turbines having wake interaction.
General Electric Company

Portable wind turbine

a portable wind turbine is adjustable between an operating configuration and a stowed configuration. The portable wind turbine comprises a turbine tower and a base.

Wind turbine blade handling aboard a vessel

a method is provided for handling wind turbine blades aboard a vessel, the method including providing on the vessel a blade rack assembly configured to accommodate more than one blade, the rack assembly having at least a root rack and a tip rack, and the root rack and tip rack defining between them a blade support plane. The method also includes providing a jack acting between the vessel and one of the root or tip rack; and raising or lowering one of the root or tip rack aboard the vessel by the jack to thereby move the blade support plane through an elevation angle θ.
Mhi Vestas Offshore Wind A/s

Gemex Consultancy B.v.

. .

Wind turbine nacelle

a wind turbine nacelle configured for mounting on a wind turbine tower and for supporting a rotor assembly, the nacelle comprising at least a first and a second nacelle module. The first nacelle module comprises a first frame structure and a main bearing system for a main shaft of the rotor assembly, and the second nacelle module comprises a second frame structure and a drive train system for the wind turbine.
Vestas Wind Systems A/s

Method of authorization for control access to wind power installations, and also interface for wind power installations and certification center

a method for authorizing a user for a control access to at least one wind turbine or at least one wind farm is disclosed. In this method, a certification center first authenticates a user, and the certification center accepts a control-access type from the authenticated user.
Wobben Properties Gmbh

Wind turbine rotor blade

a rotor blade for addressing the deflection of rotor blades of a wind turbine. The rotor blade includes a plurality of exterior surfaces defining a blade body having a pressure side, a suction side, a leading edge and a trailing edge.
General Electric Company

Method for retrofitting vortex generators on a wind turbine blade

a method of retrofitting vortex generators on a wind turbine blade is disclosed, the wind turbine blade being mounted on a wind turbine hub and extending in a longitudinal direction and having a tip end and a root end, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The method comprises identifying a separation line on the suction side of the wind turbine blade, and mounting one or more vortex panels including a first vortex panel comprising at least one vortex generator on the suction side of the wind turbine blade between the separation line and the leading edge of the wind turbine blade..
Lm Wp Patent Holding A/s

Blade for a wind turbine

a blade for a wind turbine comprising a blade root portion is described. The blade root portion defines a mounting surface for coupling to a hub or extender of the wind turbine and comprises a plurality of first holes provided with an insert, the blade root portion further comprises a mounting flange arranged in the periphery of the mounting surface and provided with second holes, wherein the inserts comprise a first end embedded in the blade root portion and a second end opposite to the first end, the second end protruding beyond the mounting surface of the blade root portion, and wherein the second ends are fitted in the second holes of the mounting flange and the mounting flange is attached to the blade by means of the inserts.
Alstom Renewable Technologies

Escape path for a production mold of a rotor blade

the invention relates to a production mold for a rotor blade of a wind turbine plant, having two mold half-shells (3, 4) which during a production method of the rotor blade are disposed so as to be at least temporarily beside one another, and having at least one inner walkway (2c, 2d) that runs along so as to be between the two mold half-shells (3, 4), characterized by at least one escape path (40) which runs along below at least one of the two mold half-shells (3, 4).. .
Senvion Gmbh

Dc-link reference voltage determination for wind turbine converter systems

a method of setting a reference dc-link voltage of a wind-turbine converter system is provided. At least at least one dc voltage demand from at least one generator-side inverter and at least one dc voltage demand are received from at least one grid-side inverter.
Vestas Wind Systems A/s

Supporting device and supporting winding coils in a wind turbine generator

the device includes a flexible member that is in a relaxed, substantially concave configuration before being inserted between two adjacent stator portions, and in an operating, substantially flattened configuration when inserted between two adjacent stator portions in which the flexible member is compressed by the stator portions and the winding coils. The flexible member may be in an inserting, substantially convex configuration for being inserted between the adjacent stator portions..
Alstom Renewable Technologies

Three dimensional woven lattices for drag reduction and turbulence reduction

the present invention is directed to three dimensional (3d) woven lattices for drag and turbulence reduction. 3d woven lattice material can serve as a surface layer that regularizes the flow around a bluff body with beneficial effects on: 1) drag reduction, 2) decrease in turbulence intensity, 3) attenuation of flow-induced vibrations, and 4) aerodynamic noise cancellation.
The Johns Hopkins University

Lighting protection system

a lightning protection system of a wind turbine is provided, including a blade lightning conductor arranged in a rotor blade of the wind turbine to extend into the hub, a stationary conductor to provide a blade grounding path to ground during a lighting strike, a brush arranged to electrically connect the blade lightning conductor and the stationary conductor, and a discharge means arranged to provide a separate discharge path from the blade lightning conductor to ground. Furthermore, a wind turbine, and a method of equipping a wind turbine with a lightning protection system, is also provided..
Siemens Aktiengesellschaft

Method and system for determining the dynamic twist of a wind turbine blade

the present invention relates to a method and wind turbine for determining a dynamic twist of one or more blades. One or more first signals are received from a first wireless sensor attached to a blade of a wind turbine and a first angle is determined based on the received first signals.
Vestas Wind Systems A/s

System for detection of foundation movement in a wind turbine

a monitoring system (100) monitors displacement of a wind turbine tower and includes at least one plumb bob with an upper part and a lower part, each plumb bob being configured to be pivotally suspended at its upper part, via a suspension device, from a point above so as to attain a rest position in a rest situation, and each said plumb bob has one or more sensing surfaces (12, 12′). One or more suspension devices means (10) suspend the at least one plumb bob.
Scada International A/s

Floating platform for harnessing wind energy

the invention relates to a floating platform for harnessing wind energy, comprising a tower (1) with a wind turbine (2), and two horizontal, identical cylindrical floating elements (3) parallel to the main longitudinal axis of alignment, the tower and the floating elements being interconnected by bar structures (5). The floating elements are joined to a stabilising element (4) which is situated directly beneath the floating elements (3), said stabilising element comprising two substantially rectangular first concrete slabs (4a), which are solid or more lightweight, with a ribbed structure, arranged perpendicularly to the axes of the floaters and joined to said floaters by means of auxiliary structures..
Saitec Offshore Technologies S.l.u.

Combined wind and solar power generating system

an integrated wind and solar solution is provided, including a solar energy collection assembly (100) and a vertical axis wind turbine (400), combined to provide an integrated power output. In preferred embodiments, the vertical axis wind turbine is positioned above the solar energy collection assembly.
Solar Wind Reliance Initiatives (swri) Ltd.

System and coordinating wake and noise control systems of a wind farm

a system and method for simultaneously coordinating a wake control system and a noise control system of a wind farm having a plurality of wind turbines is disclosed. The method includes determining, via a farm controller, one or more wake control set points for the wake control system.
General Electric Company

Over-rating control of a wind turbine generator

a method is disclosed for controlling a wind turbine generator to provide power above a rated level. The wind turbine includes one or more electrical components that conduct current from the internal generator to supply the external grid.
Vestas Wind Systems A/s

Method, device and system for compensating output power of wind turbine generator set

a method for compensating the output power of wind turbine generator set includes acquiring the average values of the first ambient temperature of environments where the wind turbine generator set is located in various periods; collecting the output power of the wind turbine generator set at the end time of various periods; compensating the set output power collected at the end time of current period according to difference value between the average value of the first ambient temperature in the current period and that in the previous period so as to guarantee the stability of the set output power if the average value of the first ambient temperature in the current period and the average value of the first ambient temperature in the previous period both are higher than a preset temperature threshold value.. .
Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Bowie State University

. .

Stator assembly with a cable wiring arrangement, generator and wind turbine with such a stator assembly

a stator assembly includes a stator frame structure having an outer annular frame with an outer edge running around a center axis; a plurality of stator segments mounted at the outer edge along a circumferential direction of the outer edge, each stator segment comprising at least one electric coil; and a wiring arrangement electrically connecting the stator segments with an electric power interface. The wiring arrangement comprises a plurality of wiring assemblies, each wiring assembly electrically connecting one of the plurality of stator segments with the power interface is provided.
Siemens Aktiengesellschaft

Anomaly detection systems and methods

this disclosure relates to the analysis of data generated by one or more connected systems and devices. Operational data obtained by one or more connected devices and/or systems, such as a connected thermostat and/or wind turbine system, may be used to detect and/or predict impending failures and/or suboptimal performance.
Intertrust Technologies Corporation

Wind farm supervision monitoring system

a wind farm supervision monitoring system includes: a data collection unit configured to collect data about a status monitoring of each wind turbine from at least one site server; an abnormality status detection unit configured to detect an abnormality status of each wind turbine based on the collected data about the status monitoring and issue an alarm; a wind data management unit configured to early detect a fault of each wind turbine and or monitor performance of each wind turbine based on the data about the status monitoring or the data about the abnormality status; and a supervision unit configured to manage a turbine operation status and operation and maintenance of each wind turbine and provide information for establishing an operation and maintenance plan for the detected abnormality status of the wind turbine.. .
Doosan Heavy Industries & Construction Co., Ltd.

Fatigue testing

the present invention relates to a method of fatigue testing an elongate specimen, such as a wind turbine blade, comprising: calculating a service life damage sum at one or more locations on at least one respective first section of an elongate specimen, responsive to at least one strain time history associated with the specimen; determining a predicted test damage sum at the one or more locations for each of a plurality of predetermined test blocks separately applicable to the specimen; and selecting at least one test block associated with the plurality of predetermined test blocks based on a comparison of the predicted test damage sum with the service life damage sum for each of the one or more locations, wherein the selected at least one test block is applicable to the specimen to cause a test damage sum at each of the one or more locations that at least substantially matches the service life damage sum at each of the one or more locations.. .
Ore Catapult Development Services Limited

Lightning system for wind turbine blades with optimized means for injecting lightning currents in conductive components of their shells

the invention provides a lightning protection system for wind turbine blades with optimized injection means of lightning currents in conductive components of their shells. The injection means comprise a current receptor element (27; 47; 67) connected to the input cable of lightning currents and arranged over an area of a shell close to an electrically conductive component (22; 42; 62) and a current injection element (28; 48; 68; 69, 69′) arranged over the electrically conductive component (22; 42; 62) and connected to the current receptor element (27; 47; 67) by at least two distribution cables (31, 32; 51, 52, 53; 71, 72, 73, 74)..
Gamesa Innovation & Technology, S.l.

A lightning current transfer unit for a wind turbine

a lightning current transfer unit for a wind turbine, the wind turbine comprising a first part and a second part being rotatable relative to each other, wherein the lightning current transfer unit is arranged to provide electrical contact between the first and second parts, the lightning current transfer unit comprising: a first current transfer portion comprising a first slider and configured to be electrically coupled to a first electrically conducting slideway of the first part of the wind turbine, the first slider being rotatable relative to the first slideway; a second current transfer portion configured to be electrically coupled to an electrically conducting portion of the second part of the wind turbine; a first main spring biasing the first slider towards the first slideway; wherein the first slider comprises: a primary contact biased towards the first slideway by the first main spring; a secondary contact arranged to move relative to the primary contact; and a secondary spring arranged between the first main spring and the secondary contact such that the secondary spring biases the primary contact away from the first slideway and biases the secondary contact towards the first slideway.. .
Vestas Wind Systems A/s

Device and arrangement for the horizontal preassembly of a wind turbine rotor

an adapter device for the horizontal preassembly of a wind turbine rotor includes a connection piece on the underside of the adapter device for fastening the adapter device to a tower system of a tower crane, and a rotor flange on the top side of the adapter device for fastening the rotor hub of the wind turbine rotor to be assembled.. .
Senvion Gmbh

Wind farm supervision monitoring method

a wind farm supervision monitoring method includes: displaying, by a user interface (ui) unit, a location of the site server on a map along with a dashboard menu, a navigation menu, and an alarm & event menu; collecting, by a data collection unit, data about status monitoring of each wind turbine from the site server; detecting, by an abnormality status detection unit, an abnormality status of each wind turbine based on the data about the status monitoring of each wind turbine and issuing an alarm based on the detecting the abnormality status; providing, by a supervision unit, a turbine operation status of each wind turbine using the dashboard menu, managing operation and maintenance; and establishing, by the supervision unit, an operation and maintenance plan for the detected abnormality status of the wind turbine.. .
Doosan Heavy Industries & Construction Co., Ltd.

Omni-directional shaftless wind turbine

conducted analysis of the proposed configuration of the wind turbine shows no necessity of additional top support for a personal use wind generator, while requires one for more powerful (community) wind turbines. Proposed additionally supporting turbine tetrahedron beam frame resolves this issue allowing increase of power of such wind generators..

Wind turbine bearings

in one aspect, a dual pitch bearing configuration for coupling a rotor blade to a hub of a wind turbine. The dual pitch bearing configuration including a first pitch bearing and at least one additional pitch bearing.
General Electric Company

Wind turbine with improved safety features

the wind turbine includes a wind driven turbine wheel rotatable about a central axis that has blades with streamers of other articles to fill the space between the blades. A set of streamers can be attached to the trailing edge of the blades at one end and including a free end wherein the free end is disposed in a space defined between adjacent blades.

Improvements relating to wind turbines

a method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine, the method comprising measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually perpendicular directions, and determining a shape parameter of the blade based upon the relative magnitudes of the measured first and second values of acceleration at the one or more locations.. .
Vestas Wind Systems A/s

Wind turbine energy tube battery charging system for a vehicle

the present application discloses wind-powered charging systems and methods for an electric vehicle. The present system can be located within tube structure on the interior of a vehicle and can comprises one or more intake ports such that, when the car is in motion, air flows into the intake ports.

System and micrositing a wind farm for loads optimization

the present disclosure is directed to a system and method for micrositing a wind farm having a plurality of wind turbines. The method includes (a) determining, via a loads optimization function, one or more wind directions with or without turbine shadow for each of the wind turbines in the wind farm, (b) determining, via the loads optimization function, at least one additional wind parameter for each of the wind directions, (c) calculating, via simulation, loads for each of the wind turbines in the wind farm based on the identified wind directions with or without turbine shadow for each of the wind turbines in the wind farm and the at least one additional wind parameter for each of the wind directions, and (d) determining a site layout for the wind farm based on the calculated loads..
General Electric Company

Rotor blade with noise reduction means

a rotor blade with a leading edge and a trailing edge, wherein the rotor blade is designed and configured for being exposed to a fluid flowing substantially from the leading edge to the trailing edge) of the rotor blade, the rotor blade includes at least one sensor for detecting flow characteristics of the fluid, and the rotor blade further includes at least one actuator for producing an anti-noise signal. The sensor and the actuator are both arranged at the surface of the rotor blade, and the actuator is arranged and prepared such that flow-induced edge noise of the rotor blade, which is generated by the fluid, is at least partly cancelled out by the anti-noise signal.
Siemens Aktiengesellschaft

a wind turbine blade comprising first and second adjacent blade sections arranged end to end along the length of the blade. Each section comprises an aerodynamic fairing and a spar.

Bolted attachment for attaching wind turbine parts

a bolted attachment having opposite threaded sections between which a shank is provided having at least two shank sections with different diameter located at a length from the threaded section of at least three times the difference between a diameter of a threaded section and a minimum diameter of the shank. At least one conical transition is formed between two adjacent shank sections where the ratio of its length to a difference between a diameter at one end of the transition and a diameter at the opposite end of the transition is of at least 0.85..
Alstom Renewable Technologies Wind B.v.

Locating a lightning strike at a wind turbine

a method is provided for locating a lightning strike at a wind turbine including the following steps, detecting a lightning strike, and deriving a location of the lightning strike based on a measurement of sound caused by the lightning strike. Further, a lightning detection system, a wind turbine, a wind farm as well as a computer program product and a computer readable medium are suggested for performing the method..
Siemens Aktiengesellschaft

Lightning receptor for a wind turbine rotor blade

lightning receptor for a wind turbine rotor blade, the lightning receptor being produced in one part in a casting process and having a receptor tip, a receptor suction side, a receptor pressure side, a receptor nose edge and a receptor end edge, defined by a fastening portion with two mutually opposite adhesive bonding surfaces which are formed by recesses in the receptor pressure side and in the receptor suction side, a receptor-nose-edge-side leg and a receptor-end-edge-side leg projecting beyond the fastening portion in a direction away from the receptor tip.. .
Nordex Energy Gmbh

Method of identifying a wind distribution pattern over the rotor plane and a wind turbine thereof

the invention relates to a method of identifying a wind distribution pattern over a rotor plane and a wind turbine thereof. At least one operating parameter of the wind turbine and a rotational position of the rotor are measured over a time period.
Envision Energy (jiangsu) Co., Ltd.

Method for monitoring a wind turbine, identifying ice on a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, and profile for a rotor blade

a method for monitoring a wind turbine is described. The method comprises measuring acceleration by means of a fiber-optic acceleration sensor in a rotor blade of the wind turbine; opto-electronically converting an acceleration signal of the fiber-optic acceleration sensor; and filtering the opto-electronically converted acceleration signal by means of an analog anti-aliasing filter..
Fos4x Gmbh

System and determining wind farm wake loss

the present disclosure is directed to a system and method for determining wake losses of a wind farm. The wind farm includes a plurality of wind turbines.
General Electric Company

Transition element for the transmission of strains between a tower and a sub-structure on a floating monolithic concrete structure for supporting marine wind turbines

the invention relates to the embodiment, by means of a pre-stressed concrete layer, on floating structures for supporting wind turbines, of the transition zone between the tower, of a lesser diameter, and the concrete float, of a greater diameter, whether the tower is made of metal or concrete. Said layer of revolution has the optimum geometry for the correct transmission of forces between the two parts, the tower and the float, with a reduced thickness and without the need for external rigidifying and reinforcing elements on the surfaces thereof, which would increase the weight and the cost of the structure..
Universitat Politecnica De Catalunya

Method of controlling active power generation of a wind power plant and wind power plant

in various embodiments of the present disclosure, there is provided a method of controlling active power generation of a wind power plant coupled to a power grid, the wind power plant including a power plant controller for controlling a plurality of wind turbine generators. In an embodiment, the method includes monitoring an operational status of a plant compensation equipment and adjusting a plant reactive power capability when the operational status of the plant compensation equipment indicates a fault in the plant compensation equipment.
Vestas Wind Systems A/s

System and reducing vortex-induced tower vibrations of a wind turbine

the present disclosure is directed to a system and method for reducing vortex-induced vibrations of a tower of a wind turbine. The wind turbine has a nacelle mounted atop the tower.
General Electric Company

Wind turbine which can be moved in translation

the invention is directed to a wind generator, comprising a wind turbine which is mounted so that it is rotatable about a horizontal or approximately horizontal rotational axis and which has one or more blades or other wind-guiding surfaces for converting flow energy of the wind into rotational energy, and at least one generator, coupled to the hub or shaft of the wind turbine or to the output shaft of a gear connected thereto, for converting the rotational energy into electrical energy, wherein the center of gravity of the wind turbine, together with the hub and rotor shaft and rotatable parts coupled thereto which rotate about the same rotational axis, is translationally movable in a direction completely or predominantly in parallel to the rotational axis of the wind turbine.. .

Tower segment handling method and apparatus

this application relates to tower segment handling methods and apparatus and, in particular, to methods and apparatus for handling segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another.
Vestas Wind Systems A/s

Epoxy systems for composites

compositions and methods for forming epoxy resin systems are provided. In one embodiment, a composition is provided for an epoxy resin system including a reaction product of an epoxy resin component and a curing agent component comprising a first amine compound having the formula r1r2r3n, wherein r1 and r2 are independently an aliphatic or alicyclic organic functional group and r3 is an alkyl group, having a backbone of 2-18 carbon atoms, and a second amine compound having one or more primary or secondary amine groups, with the stoichiometic ratio of —nh bonds of the second amine compound to the epoxy groups of the epoxy resin component being from 1:20 to about 21:20.
Hexion Inc.

Tower crane for erecting a wind turbine, and erecting said tower crane

a rotating tower crane for erecting a wind turbine, having a tower and a tower substructure, which is connected to the tower and is intended for supporting the tower, wherein the tower substructure has a supporting cross frame, which has three or more, preferably four, legs, extending from the tower. It is proposed that each leg has fastened on it, on the ground side, a load-distributor plate, which is not connected to the foundation, wherein the load-distributor plates together form the ballast of the tower..
Wobben Properties Gmbh

Smooth pitch control for propellers and rotors

a novel approach to optimizing control accuracy of pitch angle of the blades of an airplane propeller or wind turbine rotor by using laminated rubber (elastomeric) bearings in place of rolling element bearings so that the former's smooth torque vs. Deflection characteristics minimally influence the balance of passive control torques upon the pitch axis due to calibrated springs and forces resulting from rotation speed and/or aerodynamic drag..

Wind-turbine converter control for modular string converters

a wind turbine converter system with a rectifier and an inverter and a converter controller has at least first and second converter strings. The converter system is controlled by a master-converter controller and a slave-converter controller.
Vestas Wind Systems A/s

Slip ring system for a wind turbine wind turbine and a producing electrical energy

a slip ring system for a wind turbine for electrically connecting a first electrical device and a second electrical device, wherein the first electrical device is mounted to a rotor of the wind turbine, and the second electrical device is mounted to a nacelle of the wind turbine, is provided. The slip ring system comprises a slip ring apparatus and a rotational damping apparatus, with which an electrical connection between the first electrical device and the second electrical device can be established.
General Electric Company

Lightning protection wind turbine blades

a lightning protection system can include a socket, a receptor plug, a tip receptor, and a tip receptor mount. The socket can extend at least partly through a blade wall, and can include a socket body, a first retention shoulder, and a plurality of first teeth.
Erico International Corporation

System and detecting pitch bearing damage in a wind turbine

the present disclosure is directed to a system and method for detecting damage of a pitch bearing of a wind turbine. The pitch bearing is part of a pitch drive system having a plurality of pitch drive motors.
General Electric Company

System and validating optimization of a wind farm

the present disclosure is directed to systems and methods for generating one or more farm-level power curves for a wind farm that can be used to validate an upgrade provided to the wind farm. The method includes operating the wind farm in a first operational mode.
General Electric Company

Determination of wind turbine configuration

determination of wind turbine configuration the present invention relates to a method and computer system for determining a configuration of a wind turbine of a given wind turbine type, the method comprising the steps of: storing in a database a plurality of combinations of physical and control parameters of the wind turbine that can be varied; determining a plurality of wind flow characteristics at a target location; applying a function which defines a relationship between a performance parameter, a fatigue life estimation, the combination of physical and control parameters and the plurality of wind flow characteristics, to at least some of the plurality of combinations in the database to determine values of the performance parameter and the fatigue life estimation for those combinations; and selecting one of the combinations of physical and control parameters as the configuration of the wind turbine for the target location on the basis of the performance parameter and fatigue life estimation values.. .
Vestas Wind Systems A/s

Automative system management

a automative management server for receiving information technology system events and wind turbine events; correlating the information technology system event with the wind turbine event to determine a cause of an event; and generating an alert reporting the cause of the event or taking action to resolve the root cause of the event.. .
Entit Software Llc

System and improving speed control of a pitch drive system of a wind turbine

the present subject matter is directed to a system and method for improving speed control of a pitch drive system of a wind turbine. In one embodiment, the pitch drive system includes a direct current (dc) motor having an armature and a series-field winding, a battery assembly having a positive terminal and a negative terminal, and a current-controlling device configured in series between the positive terminal of the battery assembly and the series-field winding.
General Electric Company

Power ramp rate limiter for wind turbines

the invention relates to a method for limiting structural loads in a wind turbine in situations where the power produced by the wind turbine is increased or decreased. The limitation of structural loads is achieved by restricting the power ramp rate, i.e.
Vestas Wind Systems A/s

Wind turbine

a wind driven electric generator including a rotor which intercepts air movement to turn a drive line including a first right angle drive swivelly coupled on the top of a support tower and a second right angle drive located proximate ground level to deliver rotational energy of a drive line to an electric generator located proximate ground level.. .
Hawkeye Wind Llc

Adaptive oscillation damper having a vertical spring mechanism

an oscillation damper for damping unwanted oscillations in oscillation-sensitive systems, such as tall edifices and towers, especially wind turbines. The oscillation damper has a vertical spring mechanism and the oscillation characteristics, such as the frequency and amplitude, and thus the damping capabilities, can be adjusted across a wide range of values..
Esm Energie-und Schwingungstechnik Mitsch Gmbh

A turning device for turning a first mould part for manufacturing a wind turbine blade part relative to a second mould part

a turning device, for manufacturing wind turbine blades and turning moulds relative to each other, having a base, a rotational part movable relative to the base on an rotational axis, a first linear actuator with first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a first anchor point on a first turning axis, and a second linear actuator having first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a second anchor point on a second turning axis. The first turning axis is a first distance from the rotation axis and is moved on a first arc on the rotation axis, and the second turning axis is a second, different distance from the rotation axis and is moved along a second arc on the rotation axis..
Lm Wp Patent Holding A/s

Stator for a generator and a flux switching machine for a wind turbine

a stator for a generator of a wind turbine is provided. The stator comprises a magnetic frame, magnets, and magnetic sections spaced from each other.
Areva Wind Gmbh

Tower section and a a tower section

indicator device (90), for indicating proper alignment of bolt-and-nut holes of two abutting flanges (72,72′) of two tower sections (2,5) of a wind turbine tower structure (1), the indicator device (90) comprising a connector (122) for connecting the indicator device (90) to an inner face (71) of one of the flanges, and a body (100) having a first body end (101) and an opposite second body end (112) closer to the connector (122), the indicator device (90) including a resiliently deformable part (150), a pneumatic system or a hydraulic system allowing for the indicator device (90) to assume a normal configuration wherein the first body end (101) is distant from the connector (122), and a second configuration wherein the first body end (101) is located closer to the connector (122), the resiliently deformable part or pneumatic system or hydraulic system urging the first body end (101) from the second configuration towards the first configuration.. .
Vestas Wind Systems A/s

Device for fastening and/or guiding strand-shaped elements

the invention relates to a device for fastening and/or guiding strand-shaped elements, in particular cables or cable bundles in the case of wind turbines, comprising retaining bodies (5), which can be combined with a supporting structure (3) in the form of a star body in order to form a modular fastening system, having a stand passage (31) for at least one strand element, and are formed from two partial bodies (25 and 27), each of which comprises a part (29) of the strand feed-through (31). Said device is characterized in that, between surfaces (13) of consecutive spokes (9) of the star body of the supporting structure (3), said surfaces extending parallel to each other, installation spaces (21) for retaining bodies (5) are formed, which installation spaces are open toward the outside of the star body and have sides that are parallel to each other, and that a retaining device (59, 61, 63) is provided between each partial body (25, 27) and the spoke (9) adjacent thereto, by means of which retaining devices the partial bodies (25, 27) can be detachably fastened in the installation position on the supporting structure (3) and in contact with each other in such a way that the retaining body (5) is completed..
Hydac Accessories Gmbh

Wind turbine bearings

in one aspect, a dual pitch bearing configuration for coupling a rotor blade to a hub of a wind turbine. The dual pitch bearing configuration including a first pitch bearing and at least one additional pitch bearing disposed axially a distance lb from the first pitch bearing.
General Electric Company

A fully insulated tip unit for a lightning protection system for a wind turbine blade and a wind turbine blade comprising the same

a fully insulated tip unit (1) for a lightning protection system for a wind turbine blade (2) is disclosed, comprising an electrically conducting tip (3), which tip consists of an external part (4) and an internal part (5), at least one side receptor base (6), an internal tip unit conductor (8), an insulated electric cable (9) for forming the outermost part of a down conductor (10), and a connection element (12) for establishing electrical connection between the insulated electric cable and the other conducting parts of the tip unit, wherein the internal part of the tip, the side receptor base(s), the internal tip conductor, the connection element and one end of the insulated electric cable are all embedded by casting in an insulating material (13) leaving only the external part of the tip and the other end of the insulated electric cable uncovered by the insulating material. Furthermore, a wind turbine blade comprising such a tip unit is disclosed..
Global Lightning Protection Services A/s

A estimating a wind speed including calculating a pitch angle adjusted for blade torsion

a method for estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A blade torsion contribution, representing torsion introduced in the wind turbine blades, is derived, based on an obtained rotational speed, ω, of the rotor, and an obtaining a pitch angle, θ, of the wind turbine blades.
Vestas Wind Systems A/s

Hybrid tubular lattice tower assembly for a wind turbine

the present disclosure is directed to a tower assembly for a wind turbine. The tower assembly includes a lattice tower portion, a tubular tower portion, and a transition region therebetween.
General Electric Company

Curtailed operation of a wind power plant by deactivation of wind turbines

the invention relates to a method for operating a group of wind turbines in a wind power plant coupled to a utility grid, comprising the steps of determining that a wind turbine should be deactivated in response to receiving a power curtailment command from the grid, and retrieving data from each wind turbine in the group of wind turbines. Further, the method no comprises ranking all the wind turbines according to a set of ranking criteria and based on the retrieved data, and selecting a wind turbine to be deactivated based on the ranking.
Vestas Wind Systems A/s

System and controlling the operation of a wind turbine

a method for controlling the operation of a wind turbine may generally include monitoring a current yaw position of a nacelle of the wind turbine, wherein the current yaw position is located within one of a plurality of yaw sectors defined for the nacelle. In addition, the method may include monitoring a wind-dependent parameter of the wind turbine and determining a variance of the wind-dependent parameter over time, wherein the variance is indicative of variations in a wind parameter associated with the wind turbine.
General Electric Company

Floating wind turbine structure with reduced tower height and optimising the weight thereof

the present invention relates to a method and a wind turbine structure for optimising the weight of the wind turbine and the offshore foundation. The wind turbine is operated based on the measured wave height which in turn allows the tower height to be reduced so that the ratio between the tower height and the length of the wind turbine blades is greater than 0.5.
Envsion Energy (denmark) Aps

Design of a wind turbine

a method for designing a wind energy plant with a generator and with a rotor with rotor blades, comprising the steps determining the size of the wind energy plant which is to be designed, more particularly the rotor diameter and axle height, for a proposed installation site, designing the wind energy plant for a reduced maximum load which is lower than a maximum load which occurs when a 50-year gust strikes the wind energy plant from a maximum loading side.. .
Wobben Properties Gmbh

A shear web mould system comprising variable moulding plates

a shear web mould system for manufacturing a wind turbine component in form of an i-shaped shear web having a web body and a first web foot flange at a first end of the web body and a second web foot flange at a second end of the web body is described. The system comprises a central moulding portion for forming at least a part of the web body, a first moulding plate for forming at least a part of the first web foot flange, and a second moulding plate for forming at least a part of the second web foot flange.
Lm Wp Patent Holding A/s

Manufacture of i-shaped shear web

a method and mould system for manufacturing i-shaped shear webs for wind turbine blades are described. The mould system comprises a lower web mould part having a concave shape with diverging side parts for manufacturing first sides of i-web foot flanges, and an upper mould part having a concave shape with converging side parts for manufacturing other sides of the i-web foot flanges..
Lm Wp Patent Holding A/s

Anti-icing wind power blade and blade deicing and heating method

an anti-icing wind power blade, consisted of a wind turbine blade, wherein the wind turbine blade is provided with an anti-icing heating device, and wherein the anti-icing heating device consists of an air heating system and an electric heating system, wherein the two systems are independent from each other, without mutual interference, and heat the wind turbine blade separately or simultaneously. The air heating system and the electric heating system are both located inside the wind turbine blade, wherein the air heating system comprises an air heating control cabinet and an air heating device, and the electric heating system comprises an electric heating control cabinet and an electric heating element, the wind turbine blade is divided into a front edge and a back edge by a front edge web plate and a back edge web plate, wherein the air heating device is disposed in the back edge and the electric heating element is disposed on the outer surface of the front edge of the blade, and the air heating control cabinet and the electric heating control cabinet are disposed at the blade root.

Nacelle for a wind turbine, the nacelle comprising side units

a nacelle for a wind turbine and a method for erecting a wind turbine are disclosed. The nacelle comprises a main unit arranged to be connected to a wind turbine tower, via a yawing arrangement, and at least one side unit mounted along a side of the main unit in such a manner that direct access is allowed between the main unit and the side unit(s), each side unit accommodating at least one wind turbine component, and at least one side unit being capable of carrying the wind turbine component(s) accommodated therein.

Method for operating a wind power plant in a weak grid environment and a wind power plant

in various embodiments of the present disclosure, there is provided a method of operating a wind power plant in a weak grid environment in order to achieve desired system stability criteria and to support an electrical grid during small disturbances or faults, the wind power plant being coupled to an electrical grid, and including a power plant controller for controlling a plurality of wind turbine generators of the wind power plant, the method including: determining whether the electrical grid fulfils a weak grid criterion; setting the power plant controller to operate in a weak grid mode when the weak grid criterion is fulfilled, the weak grid mode including: reducing and providing an active power reference according to which the plurality of wind turbine generators are controlled, when a grid voltage deviates beyond a threshold voltage from a normal or recommended operating voltage range during steady state operation of a wind power plant; and generating a reduced amount of active power with each of the plurality of wind turbine generators based on the provided active power reference& controlling the active power ramp rates, when the electrical grid recovers from the voltage deviation or a fault. A corresponding wind power plant is further provided.

Method for estimating a wind speed in a stable manner

a method for iteratively estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A minimum tip speed ratio, λmin, is derived, based on an obtained pitch angle, θ.

Polyurethane material, process for preparing such material and protective cover for wind turbine blade

the polyurethane material is prepared from a polyol, butanediol, and an isocyanate. The protective cover is adapted to be attached along at least a part of a longitudinal edge of the wind turbine blade by adhesion of an inside of the protective cover to a surface of the longitudinal edge of the wind turbine blade.

Wind turbine blade provided with surface mounted device

a wind turbine blade having a surface mounted device attached thereto via at least a first attachment part, which is connected to a part of the device. The first attachment part comprises an outer attachment part providing a first bonding connection between the device and the surface of the blade, wherein the first bonding connection is an elastic bond, and an inner attachment part providing a second bonding connection between the device and the surface of the blade, wherein the second bonding connection has a structural bond.

Wind turbine blade with noise reducing micro boundary layer energizers

a wind turbine blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge and a trailing edge, each extending between a blade tip and a root. The rotor blade additionally defining a span and a chord.

Thermodynamic wind turbine

the invention discloses improved versions of a horizontal axis wind turbine and new fundamental methodologies for the design of wind turbines, which are capable of extracting both kinetic and thermal energy from the wind. The wind turbines use a large diameter forward inlet fairing to accelerate the airflow to the more effective outer radii of the turbine rotor where the airflow is constrained by an airfoil-shaped flow control ring, which also serves to prevent rotor tip losses, to inhibit wake expansion, and to accelerate the airflow through the turbine.

Data management systems and methods

this disclosure related to systems and methods that facilitate the secure collection and management of operational data relating to a power generation system that includes one or more wind turbines. Embodiments disclosed herein may also be used to provide various insights on wind farm operation and management using collected operational data.
Intertrust Technologies Corporation

Main shaft fixture

a main shaft fixture for fixing a main shaft on a wind turbine during installation and repair work on heavy parts of the wind turbine nacelle, in the case where the fixture is formed of several sections for mounting on stable structural parts in the nacelle, including the nacelle's bottom frame. The main shaft fixture has adjustable pressure mandrels with tap shoes, which cause the fixture to be usable regardless of the turbine main shaft geometry, such that it can be mounted without fixing the rotor.
Liftra Ip Aps

Cable to temporarily store & transport kinetic-energy from collector to generator

a temporary kinetic energy storage-holder and energy transfer devise, comprising of a rotating cable preferably of steel, between two fixed rotating points each a thrust bearings and a one direction rotation hub at the kinetic energy source, coupled to at one end to a kinetic energy capturing devise such as wind turbine, water wheel, animal human or any other kinetic energy generating or collector devise, and at the other end, coupled to an electricity generating devise, a generator, directly or via a geared speed modifier to control generator impute. And all this attached to a supporting structure, tower, pole, pipe column or the ground, to transform kinetic energy into electricity..

System and estimating high bandwidth tower deflection for wind turbines

the present disclosure is directed to a method for estimating tower loads, such as tower deflection, of a wind turbine. The method includes receiving an estimate of slow variations in thrust of a tower of the wind turbine.
General Electric Company

Wind turbine for the production of electric power with multiple-blade vanes and horizontal shaft supperted at the ends

wind turbine system improved by the inventor for the production of electrical power, which comprises a shaft supported at two ends on two towers made of concrete or steel or another material, the lower half of which wind turbine is closed with a frustopyramidal shape in order that the wind does not pass and generate a “hill” effect and simply applies thrust to the upper part of the system. The system comprises sails composed of vanes in the form of a blade (double-arc) that rotate about themselves in order to utilize 100% of the different wind speeds and a possible stopping of the wind turbine system.

Rotor blade for wind turbine

a blade (104) for a rotor of a wind turbine is provided. The blade (104) comprises: a truss-like three-dimensional structure having strut members (108; 110; 112) forming the truss-like structure, wherein a plurality of the strut members (108; 110; 112) in the truss-like structure have an airfoil-shaped cross-section..
Winfoor Ab

High torque wind turbine blade, turbine, generator, and associated systems and methods

a blade for a wind turbine can include an elongated sheet having a root, a tip positioned opposite the root, a leading edge spanning between the root and the tip along a length of the sheet, and a trailing edge positioned opposite the leading edge and spanning between the root and the tip along the length of the sheet. The sheet can be curved such that the root and the tip are curved and a region between the tip and the root is curved.
Primo Wind, Inc.

Amphibious vertical take off and landing unmanned device with ai data processing apparatus

an amphibious vtol unmanned aerial device, comprising, the cameras is adapted for providing a real-time first-person video and a real-time first-person view and normal footage video recording and 360-degree panoramic video recording used for virtual reality views and interactive video, the communication system to communicate with plurality of other devices plurality of rotors, the rotors are adapted for creating the thrust, the solar panel is adapted for converting the solar energy to electrical use,the rear propeller is adapted for horizontal flight and also used as wind turbine to charge the batteries. The al control device to control the various control surfaces and communication system, plurality of sensors, to detect the location of the drones, the stabilization system to stabilize the camera and the drone during the flight..

Method to determine a dry-out period of a converter of a wind turbine

a method to determine a dry-out period of a converter of a wind turbine is provided. A time dependent chronology of data is measured in the converter.

Wind turbine panel

a wind turbine panel is configured to distribute electricity to a load. The wind turbine panel includes a frame further comprising a first slot having a first slot first end and a first slot second end.

Method for responding to a grid event

a method is provided for controlling a wind power plant, in particular in case of a frequency drop in a utility grid to which the wind turbines are connected, the method including: combining demand response, inertial response and spinning reserve for given wind speeds in order for wind power plants to deliver fast aggregate under frequency response for a wide wind speed range with minimal recovery time and minimal production loss at each wind speed. In case of the frequency drop the utility grid is additional stabilized by active power, which is provided from a static var-compensator and which is fed into the grid.

Savonius wind turbines

a savonius wind turbine includes a rotor assembly that rotates about a longitudinal axis. The rotor assembly includes at least two curved turbine blades extending parallel to the longitudinal axis and at least two support discs connected to the at least two curved turbine blades.

Noise reduction to the trailing edge of fluid dynamic bodies

a fluid dynamic body having a trailing edge with a pattern formed thereon, the pattern can include a plurality of smoothly surfaced adjacent members with respective interstices therebetween, wherein at least one of the interstices completely contains a porous barrier. In some embodiments, the porous barrier can obstruct fluid flow through the respective interstice between a first surface of the fluid dynamic body on a first side of the trailing edge and a second surface of the fluid dynamic body on a second side of the trailing edge.

Transition piece for wind turbines and connecting structures

the present invention discloses a transition piece (10) for connecting a first component (20) having at least three columns (21) to a tower-shaped second component (30), wherein the transition piece (10) can be arranged between the first component (20) and the second component (30) and comprises a connection device for connecting the second component 30. The transition piece (10) is characterized in that it has at least three curved elements (11), the respective legs (13) of which are connectable at least indirectly to the first component (20).

Roof system with energy efficient features

a roof system that includes a roof covering in the form of planting areas, a water storage, a wind turbine, a water turbine, a solar panel, and a water heater. The roof system includes a plurality of ceramic chambers each including a wind turbine and a recess for housing a planter area..

Universal lighting system

a universal lighting system is a lighting system powered by solar panels and a wind turbine that may attachably mount to different load bearing members such as light poles. The present invention may have a light source, at least one solar panel, a wind turbine, at least one power storage member, a control panel, and a mounting frame.

System and auto-calibrating a load sensor system of a wind turbine

the present disclosure is directed to systems and methods for automatically calibrating a load sensor system of a wind turbine and determining health of same. In one embodiment, the method includes receiving a plurality of sensor signals generated by the plurality of load sensors from the load sensor system.
General Electric Company

A power plant controller for generating a power reference to wind turbine generators

the invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable.
Vestas Wind Systems A/s

Adjustable dual rotor wind turbine

a dual rotor axis wind turbine that converts renewable energy into electrical energy. The dual rotor wind turbine addresses the counter productivity problem found in dual rotors wind turbines, which occurs due to adverse effects to the downwind rotor due to lying in the wake of the upwind rotor.
Jordan University Of Science And Technology

Strut linkage for a steel construction, and steel construction having a strut linkage

a strut linkage for a steel construction may involve a tower of a wind turbine and/or a corner post of a lattice tower. In order that high forces can be removed via the strut linkage without causing increased stress concentrations, excessive use of material, and/or an excessive structural outlay, a plate element is provided for arranging between, preferably load-bearing, steel construction components.
Thyssenkrupp Ag

Method and arrangement for performing a wind direction measurement

provided is a method for performing a wind direction measurement for a wind turbine, the method including: measuring plural sample pairs, each pair including a measured relative wind direction and an associated performance quantity, the measured relative wind direction representing a measurement result of measuring a difference angle between a real wind direction and an orientation of a measurement equipment, in particular a direction orthogonal to a rotor blade plane, the performance quantity indicating a performance of the wind turbine; evaluating a degree of asymmetry of the performance quantity with respect to a measured relative wind direction equal to zero; measuring a further relative wind direction; and correcting the further measured relative wind direction based on the degree of asymmetry.. .
Siemens Aktiengesellschaft

Aviation beacon device for a wind turbine

an aircraft beacon device of a wind power installation, to be arranged on a gondola of the wind power installation, comprising at least three omnidirectional emission sections arranged concentrically in a ring around a common mid-axis, each omnidirectional emission section comprising a lens section arranged concentrically in a ring around the mid-axis, with a beam plane defined perpendicularly to the mid-axis, and at least one lighting ring having lighting means arranged concentrically in a ring around the mid-axis in order to emit light through the lens section, wherein each lighting ring is configured in order to emit light with a central emission direction which makes an emission angle with the beam plane, and wherein the emission direction depends on an axial position of the lighting ring with respect to the lens section, wherein at least one omnidirectional emission section comprises at least two lighting rings offset axially with respect to one another for emission with different emission angles.. .
Wobben Properties Gmbh

Method and arrangement for continuous calibration of a wind direction measurement

a method for calibrating a wind direction measurement for a wind turbine is provided. The method including: measuring plural samples of a relative wind direction representing a difference angle between a real wind direction and an orientation of a measurement equipment, in particular a direction orthogonal to a rotor blade plane, to obtain plural measured relative wind directions; deriving a measured relative wind direction change based on the measured relative wind directions; measuring plural samples of a performance parameter indicating a performance of the wind turbine; deriving a performance change based on the plural samples of the performance parameter; determining a correlation value between the measured relative wind direction change and the performance change; measuring further plural samples of the relative wind direction; and correcting the further measured relative wind directions based on the correlation value, to obtain corrected further measured relative wind directions..
Siemens Aktiengesellschaft

Method and system for transporting and storing at least two wind turbine blades

a transportation and storage system for at least two wind turbine blades and comprising a first wind turbine blade and a second wind turbine blade is described. The wind turbine blades each having a root end and a tip end, said system comprising a packaging system that is adapted to placing the first wind turbine blade so that the tip end of the first wind turbine blade points in a first direction, and placing the second wind turbine blade so that the tip end of the second wind turbine blade points in a second direction, which is substantially opposite to the first direction.
Lm Wp Patent Holding A/s

Wind turbine rotor balancing method, associated system and wind turbine

the present invention relates to a wind turbine rotor balancing method which compensates imbalances between the centres of gravity of the wind turbine blades, in both magnitude and position along said blades, so that the amount of mass needed to carry out this balancing method is minimized, while reducing the loads and vibrations associated with a position of the centre of gravity of the rotor not aligned with the axis of rotation thereof, wherein the invention further relates to the wind turbine rotor balancing system and the wind turbine balanced with the above method.. .
Acciona Windpower, S.a.

Lifting device for connecting two rotor blade segments of a wind turbine

a lifting device for connecting two rotor blade segments of a wind turbine at the location of the wind turbine is adapted to move in the longitudinal direction of the rotor blade. The lifting device includes a frame structure, means for supporting and guiding the frame structure in relation to the rotor blade, means for lowering and/or lifting the frame structure in relation to the rotor blade, and means for lifting and/or lowering a rotor blade segment..
Pp Energy Aps

Method and controller for coordinating control of wind farm during disconnection to utility grid

a method and a control system using the same for coordinating control of a plurality of wind turbines of a wind farm during a fault in a utility grid to which power is to be delivered via at least one cable of the wind farm. The method includes: opening each of the electrical connections; selecting at least one wind turbine of the plurality of wind turbines according to a criteria where a sum of value for active power supply that is available from the selected at least one generator is equal or above a sum of values for active power consumption that is consumable by the energy storage system of the selected at least one wind turbine, the auxiliary equipment of the selected at least one wind turbine and the substation level auxiliary equipment; activating the selected wind turbine; for the selected wind turbine: electrically connecting the power input of its converter to the power output of its generator, electrically connecting the power output of its converter to the power input of its auxiliary equipment, the power input of its energy storage system and the corresponding cable, and electrically connecting the power input of a substation level auxiliary equipment to the cable which is electrically connected to the selected wind turbine; the activated wind turbine acting as active power supply for the substation level auxiliary equipment.
Abb Schweiz Ag

Optimal wind farm operation

the present invention relates to a method of operating a wind farm comprising an upstream and a downstream turbine, wherein the upstream turbine is operated with current operation parameters under current wind conditions, wherein the method comprises the steps of: receiving future wind conditions for a time period for the wind farm, and evaluating required operation parameters for minimising wake effect of the downstream turbine under the future wind conditions, and determining a cost coefficient for changing the operation parameters to required operation parameters under consideration of fatigue effect of the wind turbine, calculating power productions po and pc, in the predetermined time period, by the wind farm if operated with the current operation parameters under the current wind conditions and if operated with the required operation parameters under the future wind conditions, respectively, and operating the upstream turbine with the required operation parameters if the cost coefficient is lower than a cost that would be obtained by a power production increment pc-po.. .
Abb Schweiz Ag

Wind turbine rotor blade

a wind turbine rotor blade (1) with a blunt, wide and/or cut off trailing edge (15) in a hub region (111), with an air-conducting channel (23) extending radially outward for conducting suctioned air from a suction region (21) to a blow-out region (22) arranged in the blade tip region (113) inside the wind turbine rotor blade (1), wherein and boundary layer suctioning occurs on the top side (13) of the wind turbine rotor blade (1), and a boundary layer fence (28) is provided in the hub region (111) near the hub fastening means (17) in order to prevent a flow in the direction of the hub fastening means (17).. .
Best Blades Gmbh

A wind turbine blade, and a reinforcing a wind turbine blade

a wind turbine blade comprising a shell having a section with an aerodynamic profile with a trailing part comprising a trailing edge formed by a first shell part and a second shell part both extending from the trailing edge in mutual divergent directions, and where at least one elongated reinforcing member is connected inside the shell for increasing the strength of the blade, each of the at least one elongated reinforcing member having a first end and a second end and extending in a longitudinal direction between the first end being connected to the first part of the shell, and the second end being connected to the second part of the shell and thereby preventing deformation of the trailing part of the shell, and wherein the elongated reinforcing member comprises an elongated element extending in its longitudinal direction between the first and the second end of the elongated reinforcing member, and where at least one end of the elongated element is connected to an overload protection device, being adapted for ensuring that the tension and/or compression on the elongated element does not exceed a certain level.. .
Bladena Solutions Aps

Multiple airfoil wind turbine blade assembly

an improved wind turbine blade assembly for a wind turbine, and an improved wind turbine, having multiple airfoils, specifically, at least a primary airfoil and a secondary airfoil with an aerodynamic gap therebetween.. .

Reducing the load of a wind turbine rotor blade during installation

a method of reducing the load of a rotor blade of a wind turbine during installation of the wind turbine, whereby the rotor blade includes an aerodynamic device such as a vortex generator or a noise reducer is provided. The method includes the steps of attaching a cover on the rotor blade for covering at least a part of the aerodynamic device before lifting the rotor blade to the top of the tower of the wind turbine, and detaching the cover subsequently.
Siemens Aktiengesellschaft

Profiled protective tape for rotor blades of wind turbine generators

also provided are processes for making profiled tapes and methods for applying the tapes to rotor blades and blades containing protective tapes.. .

System for transporting and installing wind turbines on the seafloor

system for transporting and installing wind turbines on the seafloor, made up of a structure that has adjustable flotation capacity and is made up of two floating hulls and a series of columns onto which they are mounted with the capacity to move over the same, an upper peripheral frame and a lower peripheral frame, on which means are mounted for fastening and manipulating the wind turbines and piles and ferrules for anchoring said wind turbines to the seafloor.. .
Ocean Shift, S.l.

Method for producing a form-wound coil for a laminated stator core

a method for producing a form-wound coil for fitting into a laminated stator core of a synchronous generator of a gearless wind turbine, comprising the steps of cutting out at least one first flat strip conductor from a metal sheet with a first slot-strip portion, for inserting into a first slot of the laminated core, cutting out at least one second flat strip conductor from a metal sheet with a second slot-strip portion, for inserting into a second slot of the laminated core, and angling away the first and/or second cut-out strip conductor in such a way as to create an angled-away winding head portion, for connecting the first and second slot-strip portions.. .
Wobben Properties Gmbh

Tool and a moving a wind turbine drivetrain component

the invention includes a tool for moving a drivetrain component in a nacelle of a horizontal axis wind turbine, the nacelle comprising a nacelle structure, the component being connected, in operation of the wind turbine, to a rotor of the wind turbine, the tool comprising at least one carrier adapted to be connected to the component, to carry the weight of the component, and to be supported by the nacelle structure, and at least one drive unit adapted to be connected to the nacelle structure and to the carrier, so as to provide a force between the nacelle structure and the carrier, so as to drive the carrier with the component in a direction parallel to the rotational axis of the rotor.. .
Vestas Wind Systems A/s

Vertical axle or axis helically swept blade wind turbine

the vertical axle or axis helically swept blade wind turbine, is by definition a vertical wind turbine using a blade or blades shaped as a spiral, with one side of the blade flat, the other side serving as an airfoil to create desired overall torque, all around its full turn, or integer number of full turns, using this the same cross section all along its stretch. Among its intrinsic advantages are; simplicity, greater electric power output related to swept area facing the wind, earlier “kick in” for lower wind speeds, wind direction independent, ease of maintenance, due to ground level access to most of its components and self-controlling by definition.

Wind turbine rotor blade assembly with root extension panel and assembly

a wind turbine rotor blade assembly and associated method include a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending in a generally span-wise direction between a tip and a root. An edge extension panel is attached along either of the leading edge or trailing edge (or along both edges) in a generally span-wise direction from adjacent the root towards the tip.
General Electric Company

A manufacturing a mould for a wind turbine blade shell

a system and method for the manufacture of wind turbine blade moulds and wind turbine blade mould plugs is described. The method comprises dividing a blade mould geometry (70) or plug geometry into separate geometrical slices or segments.
Lm Wp Patent Holding A/s

Method for the individual pitch control of rotor blades of a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, rotor blade of a wind turbine and wind turbine

the invention relates to a method for the individual pitch control of the rotor blades of a wind turbine. The method comprises: measuring an acceleration by means of an acceleration sensor in a rotor blade of the wind turbine; high-pass filtering of a signal of the acceleration sensor in order to determine a time-variant variable; and setting the pitch of the first rotor blade of the wind turbine using the time-variant variable, said pitch setting being part of an individual pitch control..
Fos4x Gmbh

Wind pitch adjustment system

systems and methods for controlling a wind pitch adjustment system associated with a wind turbine system are disclosed. In one embodiment, the wind pitch adjustment system can include a power supply configured to convert an alternating current input signal into a direct current voltage, a controller configured to receive a signal from the power supply, and to provide one or more control commands to a pitch adjustment motor, and a surge stopping device comprising a switching element coupled between the power supply and the controller.
General Electric Company

Method, device, and system for controlling wind alignment correction of wind turbine generator system

a method for controlling wind alignment correction of a wind turbine comprises: acquiring environmental wind speed values, wind alignment angle measured values, and generated power values of the wind turbine in real time; dividing each acquired environmental wind speed value into multiple wind speed sections according to the magnitude of the environmental wind speed value, and extracting wind alignment angle measured values and generated power values in at least one wind speed section; determining a maximum value of extracted generated power values in each wind speed section; calculating a wind alignment correction deviation of the wind turbine according to a wind alignment angle measured value corresponding to the maximum value; and performing correction processing on a subsequently acquired wind alignment angle measured value by using the wind alignment correction deviation.. .
Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Wind power generation system

disclosed herein is a wind power generation system using a dynamic lift generation disk structure unlike a horizontal-axis wind turbine(hawt) or vertical-axis wind turbine(vawt) which uses blades. The wind power generation system includes a column and an oscillating unit.
Industry-academic Cooperation Foundation Yonsei University

Rotor blade for wind turbines

the invention relates to a segmented rotor blade for wind turbines, the segmented rotor blade having spar elements which can be telescoped into one another. According to the invention, in order to screw the telescoped spar elements together, one of the bushes is designed as a slide bush to achieve a better connection of the segmented rotor blades..
Nordex Energy Gmbh

Bolted joint for rotor blade segments

a rotor blade of a wind turbine, wherein the rotor blade includes a first rotor blade segment and a second rotor blade segment is provided. The first rotor blade segment is connected with the second rotor blade segment by at least one bolted joint.
Siemens Aktiengesellschaft

Trailing edge air duct of a wind turbine rotor blade

a rotor blade of a wind turbine, wherein the rotor blade) includes a suction side, a pressure side, a trailing edge section with a trailing edge, and a leading edge section with a leading edge is provided. The rotor blade furthermore includes an air duct at the trailing edge section which provides a flow path from the pressure side to the suction side.
Siemens Aktiengesellschaft

Random pulse width modulation for power converters

a power generation system, wind turbine, and method of pulse width modulation (pwm) for power converters are disclosed. The method generally includes generating a substantially random distribution of timing values, applying a filter to the random distribution to produce a modified random distribution, and delivering pwm ing signals based on the modified random distribution to the power converters..
Vestas Wind Systems A/s

Synchronous generator of a gearless wind turbine

a synchronous generator, in particular a multiple-pole synchronous ring generator of a gearless wind turbine, for generating electric current, comprising a rotor and a stator is provided. The stator has a large number of slots for receiving a stator winding in the form of conductor bundles, wherein the slots each have a slot base, whose surface is profiled in such a way that, during filling, a first layer on the slot base side of conductor bundles assumes an orientation which is preset by the profile.
Wobben Properties Gmbh

System for storing electrical power

a wind turbine, which includes a base, a tower, the tower having a cavity therein, which houses a rechargeable battery, and one or more blades, which produce a source of electricity, which is stored in the rechargeable battery housed in the tower of the wind turbine.. .

Moment bearing test device for testing a moment bearing of a wind turbine and a method thereof

the invention relates to moment bearing test device and a method of testing a wind turbine moment bearing. The test device comprises a drive unit for rotating a first ring relative to a second ring of the moment bearing.
Envision Energy (denmark) Aps

Sliding bearing arrangement for a wind turbine

a sliding bearing arrangement for a wind turbine and a method to service the bearing is provided. A sliding bearing arrangement of a wind turbine includes a first shaft and a second shaft, whereby a first radial sliding bearing is arranged between the shafts.
Siemens Aktiengesellschaft

Anti-icing and deicing for high-power wind turbine blades

the current invention relates with a modular gas-heat anti-icing method as well as a device for high-power wind turbine blades, wherein a modular heating system is provided on the blade root, a ventilation duct is provided inside the blade, a wind deflector is provided at the end of the ventilation duct, which divides the front edge of the blade into two parts, so that the hot air in the ventilation duct is only to be conducted to the blade tip and then circulates into the blade root via the rear edge of the blade, enabling the hot air to circulate inside the blade and form a “blade root to blade tip to blade root” closed loop, so that the purpose of heating the front edge of the blade is achieved, and it is ensured that the whole blade does not ice by preventing the front edge of the blade from icing. Using the anti-icing system and method of the present invention, the blades have anti-icing and icing-removal function, which can improve the electricity generation efficiency of the wind wheel in winter.
Zhuzhou Times New Materials Technology Co., Ltd.

Abnormality diagnosing rolling bearing, wind turbine, and abnormality diagnosing rolling bearing

a displacement sensor detects a displacement of a main shaft, thereby detecting a relative displacement between an inner race and an outer race of a bearing. A data processor carries out an abnormality diagnosis for the bearing based on a detected value of the displacement sensor.
Ntn Corporation

A determining deflection of a wind turbine blade

a method for the calculation of a wind turbine blade deflection is described. The method utilises a known blade modal profile in the calculation of the blade deflection, such that the a priori knowledge of the blade excitation modes can be used with a simple distance measurement to determine the blade deflection shape.
Lm Wp Patent Holding A/s

Wind turbine device

a wind turbine device includes a rotatable seat, and a blade assembly including a rotary shaft having a fulcrum portion rotatably connected to the rotatable seat, and two mounting portions extending oppositely and respectively from two opposite ends of the fulcrum portion. At least two blade units are respectively connected to the mounting portions.

Fluid turbine blade device

a wind turbine blade device includes a rotating unit including a blade module concentrically connected to a rotating shaft thereof and having a plurality of radially curved channels each having inlet and outlet ends. The inlet and outlet ends of the radially curved channels are configured to respectively permit flow of the flow body into and out thereof.

Synchronous superconductive rotary machine having a slidable pole assembly and methods thereof

the present invention relates to a synchronous superconductive rotary machine with a superconductive rotor, a wind turbine, an assembly method and a repair method there- of. The rotor comprises a back iron connected to a thermally insulating support structure which is further connected to a base element.
Eco 5 Gmbh

A de-icing system for a wind turbine blade

a wind turbine blade is described having a de-icing system which is arranged to heat at least a portion of the leading edge of the wind turbine blade, to prevent the formation of ice on the blade, or to remove any existing surface ice. The de-icing system comprises insulated flow channels which are arranged to circulate a heated fluid from a heating element to the tip end of the blade, and to de-ice the blade leading edge starting from the tip end towards the root end of the blade.
Lm Wp Patent Holding A/s

Modular transporting tower assembly of wind turbine

a system and method are used for transporting a plurality of tower sections of a wind turbine on beds of transport devices, such as flat railcars. Supports affix at support locations on beds to accommodate at least one of the tower sections on each of the transport devices.
Utc Overseas, Inc.

Wind turbine blade with customised chord length

the present invention relates to a wind turbine blade mould comprising a first mould part and a second mould part, where said first mould surface is configured for moulding a pressure side shell of a wind turbine blade, where said second mould surface is configured for moulding a suction side shell of a wind turbine blade, and where the wind turbine blade mould and thus also a wind turbine blade moulded in said mould comprise a first end, a second end, a pressure side shell, a suction side shell, and further comprise a leading edge area and a trailing edge area. The present invention also relates to a wind turbine blade and a manufacturing method for producing a wind turbine blade using a wind turbine mould as mentioned above..
Envision Energy (denmark) Aps

. .

System and ground based inspection of wind turbine blades

a ground based wind turbine blade inspection system and method consists of a thermal imaging camera configured to detect propagating defects by acquiring thermal imaging data from a wind turbine blade when it is substantially at thermal equilibrium with respect to surrounding air and analyzing the thermal imaging data with a processor to identify thermal effects associated with latent defects caused by internal friction due to cyclic gravitational stresses and wind loads during normal turbine operation. The system permits latent defects to be identified using a ground-based in situ inspection before they become visually apparent, which allows repairs to be made economically while the blade is in place..
Digital Wind Systems, Inc.

Method of testing wind-turbine receptor

a method of testing a receptor of a wind turbine includes a step of moving an unmanned aerial vehicle (uav) close to the receptor of a wind turbine blade mounted to a hub of the wind turbine, and performing an electric continuity test on the receptor.. .
Mitsubishi Heavy Industries, Ltd.

Acoustic damping system for a wind turbine tower

the present disclosure is directed to a system and method for reducing audible tonality of a wind turbine caused by vibrations generated by the drivetrain assembly thereof. The system includes a plurality of damping elements mounted at a plurality of locations on an inner surface of a tower of the wind turbine, the plurality of locations having vibration levels above a predetermined threshold.
General Electric Company

Hinged tower segments and transport method

this application relates to hinged tower segments and transport methods, and particularly to methods and apparatus for transporting and storing hinged segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another.
Vestas Wind Systems A/s

Control of a wind turbine based on operational trajectory validation

the present invention relates tocontrol of wind turbines based on predicted operational trajectories. A control system for a wind turbineis described wherea main controller calculating one or more predicted operational trajectories and a safety controller validates at least one of the one or more predicted operational trajectories.
Vestas Wind Systems A/s

Control of wind turbines

the present invention relates to a method and control system comprising at least one cable temperature sensor for measuring cable temperature values for at least one power collection cable (50, 55) connected to a wind turbine (20) and a controller (110) arranged to generate and output an overrating control signal to the wind turbine (20). The output overrating control signal sets an amount by which the power output of the wind turbine (20) is to be overrated.
Vestas Wind Systems A/s

Wind turbine for use in high winds

a wind energy generation turbine is built to take advantage of high winds in mountain passes and other areas of extreme wind velocity. A windmill section is raised high by support structures.

Wind turbine, yaw control device, and operation control method

a wind turbine includes: a wind turbine rotor; a nacelle supporting the wind turbine rotor rotatably; a yaw rotation part configured to rotate the nacelle; and a yaw control part configured to operate the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity. The threshold increases with an increase in the wind-velocity parameter..
Mitsubishi Heavy Industries, Ltd.

Vertical axis wind turbine

a vertical axis wind turbine rotor with a base having a rotational centre, a top surface, a top surface edge, and a plurality of top plates disposed radially around the rotational centre. The rotational centre defines an axis of rotation substantially orthogonal to the top surface.

Novel applications of the new wind power formula, novel movements of sails, and novel sail turbines, plus novel propulsion systems

wind sail turbines end the fossil fuel age and supply abundant, clean, and very inexpensive electricity (power). The new wind sail turbines produce roughly 10-fold to 50-fold more power than existing wind turbines in the same wind path.

Mounting method and template for vortex generator

a method of mounting a vortex generator to a wind turbine blade includes: a step of specifying positions of at least two reference points at different coordinates in a blade spanwise direction of the wind turbine blade on the wind turbine blade; and a step of adjusting a mounting direction of the vortex generator and mounting the vortex generator to the wind turbine blade, with reference to a line connecting the reference points. The step of specifying the positions of the reference points comprises specifying the position of each of the reference points on the basis of: a length along a surface of the wind turbine blade in a chordwise direction from a trailing edge of the wind turbine blade or from a blade spanwise directional line extending along the blade spanwise direction on the surface of the wind turbine blade; and a distance in the blade spanwise direction from a blade root or from a blade tip of the wind turbine blade..
Mitsubishi Heavy Industries, Ltd.

Vortex generator for wind turbine blade, wind turbine blade, wind turbine power generating apparatus, and mounting vortex generator

a vortex generator for a wind turbine blade includes: a platform portion to be fixed to a surface of the wind turbine blade; and at least one fin erected on the platform portion. The platform portion includes marks disposed on a pair of opposite positions in an outer edge region of the platform portion and indicating orientation of the vortex generator..
Mitsubishi Heavy Industries, Ltd.

Optimized multiple airfoil wind turbine blade assembly

a method for optimizing multiple airfoil wind turbine blades, having, specifically, at least a primary airfoil and a secondary airfoil with an aerodynamic gap therebetween. An optimized multiple airfoil wind turbine blade assembly, and a modular method for manufacturing and assembling the same..

A diffuser, user of a diffuser and a wind turbine comprising a diffuser

use of diffuser (1) and a wind turbine (2) comprising a diffuser (1) is also disclosed.. .

Internal ladder assembly for a wind turbine rotor hub

a rotor hub for a wind turbine may generally include a hub body defining both a plurality of blade flanges and a plurality of access ports spaced apart from the blade flanges. In addition, the rotor hub may include a ladder assembly extending within an interior of the hub body.
General Electric Company

Concrete towers manufacturing wind turbines and concrete tower for wind turbine

the present invention relates to a manufacturing process in situ of concrete towers for wind turbines which enables executing a design of concrete tower manufactured in situ by means of climbing formwork, which reduces the execution time of the concrete tower, where the invention also relates to the associated concrete tower for wind turbine.. .
Acciona Windpower, S.a.

Composition

the invention relates to a substrate coated with a coating composition, wherein the coating composition has a volume solids content of greater than 30%, said composition comprising (i) at least one polycarbonate polyol; (ii) at least one hydroxyl containing polymer selected from the group consisting of an acrylic polyol, a polyester polyol and a mixture thereof; and (iii) at least one polyisocyanate curing agent; wherein the weight ratio of (i):(ii) is 9:1 to 1:9 and wherein, if present, said polyester polyol is different to said polycarbonate polyol; and wherein the substrate is selected from the group consisting of aircraft wings, wind turbine blades, rotor blades, propellers, randomes, antenaae, fan blade nose cones and high speed vehicles.. .
Jotun A/s

A control system for a wind turbine generator

the invention relates to a control system for a wind turbine generator, wtg. The control system defines reactive limits for a reactive power reference for the wtg.
Vestas Wind Systems A/s

Reactive power support from wind turbine facilities

the present invention relates to a method for operating a wind power facility in order to provide reactive power support to a power grid, the method comprising the step of increasing an amount of reactive power injected into the power grid, decreasing an amount of active power injected into the power grid by a certain amount, and dissipating and/or storing essentially said certain amount of active power in power dissipation and/or power storage means. The wind power facility may comprise a wind turbine or a wind power plant..
Vestas Wind Systems A/s

Fatigue testing of a wind turbine blade

the application relates to an apparatus (100) for fatigue testing a wind turbine blade, and to a system and method using such an apparatus (100). The apparatus (100) comprises a base (110) for supporting a first end (12) of the wind turbine blade (10), and an edgewise actuator assembly (120).
Vestas Wind Systems A/s

Repairing a gear part in a wind turbine

a method for repairing a gear part (1) in a wind turbine, in particular repairing damaged teeth of a toothed rim (2). A repair cavity (10) is formed by removing material, including one or more damaged teeth, from the gear part (1) by drilling one or more holes through the gear part (1) along a direction which is substantially parallel to an axis of circular symmetry of the gear part (1).
Vestas Wind Systems A/s

Wind turbine generator assemblies

an offshore wind turbine generator comprises a tower 1 and a platform 2. The tower 1 is provided with a side door 4 accessed from the platform 2 using a stairway 5 leading to an upper platform 6.
Mhi Vestas Offshore Wind A/s

Verification of wind turbine nacelle yaw position sensor

the invention relates to techniques for verifying a nacelle yaw position sensor installed on a wind turbine and for taking restorative action to control the nacelle yaw position. The invention relates to a method performing the comprising determining a first absolute wind direction signal associated with the first wind turbine; determining a second absolute wind signal direction signal associated with the plurality of other wind turbines; comparing the two wind direction signals; and issuing a nacelle yaw position sensor fault signal if the first signal is beyond a predetermined error range of the second signal.
Vestas Wind Systems A/s

Multi-turbine wind power platform for offshore applications

a floating multi-turbine wind power platform for offshore power production, wherein the platform has a substantially elongated shape with an extension direction and being attached to at least two mooring points for securing the platform at its operation site in an original position in relation to the mooring points. The platform includes a device for rotation of the platform (mr1) around an essentially vertical first axis (z1) and further includes at least two wind turbines arranged substantially in a straight line corresponding to the extension direction of the platform and the at least two wind turbines each includes a structural support component and a rotor component.
Hexicon Ab

Turbine over-rating using turbulence prediction

an apparatus and method is disclosed for over-rating a wind turbine using turbulence prediction. Weather forecast information is used to determine whether there is a risk of turbulent conditions occurring at the site of the wind turbine.
Vestas Wind Systems A/s

Improvements relating to the determination of rotor imbalances in a wind turbine

a method and system for improving the balance of a rotor in a wind turbine, including; determining blade load data associated with a selected rotor blade pair; determining, based on the blade load data, pitch imbalance data associated with the selected rotor blade pair, wherein the pitch imbalance data associated with a rotor blade pair is based on measurements of at least blade loading, rotor speed and wind speed; and, determining and applying pitch control inputs to one or both of the selected rotor blade pair in order to reduce the severity of the rotor imbalance.. .
Vestas Wind Systems A/s

Improvements relating to wind turbine blade manufacture

method of bonding a shear web (50) to a wind turbine blade shell (75) and the obtained blade, wherein the shear web (50) comprises a web and a mounting flange (56) oriented transverse to the web (50). The method involves: providing a seal (66, 68) on the mounting flange (56) of the shear web (50) such that when the mounting flange (56) is positioned against the blade shell (75), a cavity (76) is defined by the seal between the mounting flange (56) and the blade shell (75).
Vestas Wind Systems A/s

Wind turbine blade having a trailing edge flap

a wind turbine blade includes a trailing edge flap having a flap part protruding from the trailing edge on the pressure side of the blade. The flap part has a first section and a second section each having an upstream surface arranged to face an oncoming airflow in use.
Vestas Wind Systems A/s

Hinged tower segments and transport method

a method for moving a wind turbine component (42) relative to a wind turbine (16) having a tower (18) with a door (26) for closing off an opening (90) through the tower (18) includes removably positioning a transport system (40) relative to the wind turbine (16), the transport system (40) having a track (44) and a powered drive device (118), such that a first end (78) of the track (44) is positioned outside the tower (18), a second end (80) of the track (44) is positioned inside the tower (18), and the track (44) extends through the opening (90) in the tower (18). The transport system (40) is configured to facilitate movement of the wind turbine component (42) between an inside of the tower (18) and an outside of the tower (18) through the opening (90).
Vestas Wind Systems A/s

Reinforced wind tower

reinforced wind turbine tower (1) formed by a hollow body (2), which comprises in its interior at least one reinforcement structure (3) formed by a series of longitudinal reinforcements (4), where each of said reinforcements (4) has its two opposite ends attached by attachment means to the hollow body inner surface (2) of the tower at points placed on different vertical lines, and where each reinforcement (4) has at least one of its ends attached by attachment means to the end of the other consecutive reinforcement (4) with the same.. .
Gamesa Innovation & Technology, S. L.

Floatable support structure for an offshore wind turbine or other device

an apparatus for supporting an additional structure near a surface of a body of water, and a system which includes the apparatus and further includes the structure attached to the apparatus. The apparatus and the system are each configured to assume a rest position and orientation when the apparatus or system is floating at the surface and when the body of water is substantially still, where the rest orientation defines a vertical direction extending from the surface to a keel at a lowermost position of the apparatus.

A process for producing a composite article

process for producing a composite material comprising depositing a prepreg containing a radiation initiated curing agent onto a mould using automated apparatus and applying heat and second source radiation to at least partially cure the prepreg at least simultaneously with the deposition of the prepreg. Also epoxy resin formulations of a mixture of a liquid epoxy resin and a solid or semi-solid epoxy resin containing a photoinitiator are used as the matrix in prepregs which are cured or partially cured by radiation to avoid the need for thermal cure in an oven.
Hexcel Composites Limited

Apparatus and removing equipment parts from a platform of a wind turbine generator, and filling a fuel tank on said platform

a power pack is located within a housing on the platform of a wind turbine generator tower. The power pack is supplied from a fuel tank.
Mhi Vestas Offshore Wind A/s

Nozzle assembly for repairing or upgrading wind blades, method thereof and kit for the same

this invention relates generally to a nozzle, method thereof and a kit set for the same for spreading material on curved surface, in the field of repairing services for wind turbine blades and other similar composite components. More particularly, the present invention relates to a nozzle for spreading material on a leading edge of a wind turbine blade for guiding the material along the surface, generally, for repairing or upgrading.
Wind Composite Services Group, Llc

Motor control topology for airborne power generation and systems using same

a motor control topology relevant to airborne wind turbines and a control process for such a motor control topology is disclosed herein.. .
X Development Llc

Combination wind/solar dc power system

a direct current power system. The direct current power system includes a direct current bus system, a solar power system, an energy storage system, a wind power system, a rectifier system and an inverter system.
Pitt-ohio Express Llc

Spacer for wind turbine cables

the present disclosure is directed to a cable securement assembly for protecting cables and/or cable bundles within a wind turbine. The cable securement assembly includes a cable spacer having an inner surface and an outer surface separated by a thickness and one or more fastening components.
General Electric Company

Condition monitoring system and wind power generation system comprising the same

a condition monitoring system for a wind turbine comprises: a sensor which senses a condition of a yaw bearing; a monitor device which generates a diagnosis parameter based on a detection result of the sensor; a sensor which senses a rotating angular velocity of a nacelle and that of a main shaft; and a data server which diagnoses a failure of the yaw bearing based on the diagnosis parameter. The data server diagnoses whether the yaw bearing has a failure, based on a variation of the diagnosis parameter from an initial value thereof when the nacelle has a rotating angular velocity within a non-zero, first prescribed range and the main shaft has a rotating angular velocity within a second prescribed range..
Ntn Corporation

Vertical axis wind turbines

a device comprising a vertical axis wind turbine comprising an arm, a housing coupled to the arm, a generator housed within the housing, and a blade extending along the housing vertically.. .

Innovative wind turbine construction for 100% energy independence or even being energy positive

systems, methods, and apparatuses are provided for generating clean energy. A savonius vertical-axis wind turbine, including a shaft configured to rotate about a first axis, aerofoil blades transversely mounted with respect to the first axis, on the shaft, transversely extending outwards from the shaft to a first distance from the shaft, a generator coupled to the shaft, the generator configured to generate electricity from rotational energy of the shaft when the shaft rotates about the axis; and a first curved wind shield having a semi-circular shape defined by a curvature, each point of the curvature is a fixed second transverse distance from the shaft, the first curved wind shield positioned at the fixed second transverse distance from the rotating shaft, and the curved wind shield is rotatable about the rotating shaft, at the fixed second distance.
Hattar Tanin Llc

Operating a wind turbine of a wind farm

a method is proposed for operating at least one wind turbine of a wind farm including determining wind turbine individual offset information based on reactive power provided by the respective wind turbine and reactive power provided by at least one further wind turbine of the wind farm, determining wind turbine individual control information based on the wind turbine individual offset information and wind farm specific control information, operating the at least one wind turbine according to the wind turbine individual control information. Further, a controller and a device as well as a computer program product and a computer readable medium are also provided..
Siemens Aktiengesellschaft

Improvements relating to the determination of rotor imbalances in a wind turbine

a wind turbine comprising a tower, a rotor including a plurality of blades, an electrical generator operatively coupled to the rotor, and a control system including an active damping module configured to monitor oscillatory motion of the wind turbine and to output a damping demand signal to damp the oscillatory motion. The control system is configured to perform a rotor imbalance determination process including: controlling the rotating frequency of the rotor so that it substantially coincides with the natural frequency of the tower, determining rotor imbalance data based on the damping demand signal and evaluating said rotor imbalance data to determine the presence of a rotor imbalance condition, and correcting the rotor imbalance condition by applying pitch control inputs to one or more of the plurality of blades so as to reduce the severity of the rotor imbalance.
Vestas Wind Systems A/s

A wind power plant with reduced losses

the present invention relates to a method for controlling a wind power plant, the wind power plant comprising a plurality of wind turbine generators, each wind turbine generator comprising at least one power converter for providing active power and/or reactive power to an electrical grid, wherein the method is determining a required amount of reactive power provided by the plurality of wind turbine generators, and grouping the plurality of wind turbine generators into a first set of wind turbine generators and a second set of wind turbine generators based on a demand for reactive power; and supplying reactive power to the grid (20) from the first set of wind turbine generators and disconnecting the second set of wind turbine generators from the electrical grid (20) in response to a control demand, in order to minimize active power losses. The present invention also relates to a wind power plant arranged to perform the method..
Vestas Wind Systems A/s

Wind turbine rotor blade

a rotor blade of a wind turbine. The rotor blade comprises at least one rotor-blade inner portion, having a region connecting to the rotor-blade hub, and at least one rotor-blade outer portion, having a rotor-blade tip, the rotor-blade inner portion and the rotor-blade outer portion each being made substantially of a fibre-reinforced plastic, and the rotor-blade inner portion and the rotor-blade outer portion being connected to each other by a connecting device.
Wobben Properties Gmbh

A reinforced wind turbine blade component

a component for a wind turbine blade is described having a reinforced through-going aperture. The reinforcement can be provide by way of a fibre rope arranged around the periphery of the aperture, or as fibre material arranged in a radially-extending arrangement from the aperture..
Lm Wp Patent Holding A/s

Blade for a wind turbine

wind turbine blade having at least one longitudinal hollow element that defines an aerodynamic outer surface and an inner cavity having an inner surface. The blade also comprises at least one spar (1), disposed in the inner cavity and bonded to the inner surface by at least two bonding surfaces (13) located on bonding surfaces (2) of the spar (1).
Acciona Windpower, S.a.

Retrofit reinforcing structure addition and wind turbine concrete gravity spread foundations and the like

a retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like haying a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation.

Method for installing a rotor blade on a wind turbine

a method for installing a rotor blade on a wind turbine, the rotor blade comprising a blade root for fastening the rotor blade to a hub, a blade tip facing away from the blade root, and a longitudinal axis running from the blade root to the blade tip, and the method comprising the steps of: hoisting the rotor blade using a crane, recording measurement data relating to the position and/or orientation of the rotor blade using at least one measuring means during the hoisting, and transmitting the measurement data to at least one monitoring station for monitoring the hoisting and/or to at least one control facility for controlling the position and/or orientation of the rotor blade.. .
Wobben Properties Gmbh

Synchronous generator, in particular multipole synchronous annular generator of a direct-drive wind turbine, and wind turbine having the same

a synchronous generator, in particular a multipole synchronous annular generator of a direct-drive wind turbine, for generating electricity, with a rotor and a stator, wherein the stator has multiple grooves in which a stator winding is arranged, wherein the stator winding releases heat energy as a result of the generation of power, and wherein a cooling body for absorbing and dissipating released heat energy is arranged in one groove, multiple grooves or all of the grooves.. .
Wobben Properties Gmbh

System and operating a wind turbine

the present subject matter is directed to a wind turbine electrical power configured to minimize power losses. The power system includes a generator having a generator stator and a generator rotor, a power converter electrically coupled to the generator, a main transformer electrically coupled to the power converter and the power grid, and an auxiliary transformer.
General Electric Company

Threaded planetary pin

an arrangement for use, in particular, in the transmission of a wind turbine, having a planet carrier, at least one planet gear, at least one planetary pin and at least one bearing. The planet gear is mounted on the planetary pin, in a rotatable manner, by way of the at least one bearing.
Zf Wind Power Antwerpen N.v.

Eccentric clamping bushing

a clamping bushing which, due to the particular eccentric geometry and composite materials used to manufacture the same, comprising elastomers (14, 15) and metal sheets (10, 11), is suitable for the reduction of principally vertically acting vibrations and structure-borne sound which can arise in machines/gearboxes and, in particular, in wind turbines.. .
Fm Energie Gmbh & Co. Kg

Wind turbine and ice removal in wind turbines

a wind turbine is disclosed which comprises a control system configured to execute at least one ice removal routine which comprises a heating stage of at least one of the blades (3), and a mechanical removal ice stage. A wind turbine removing ice method is also disclosed which comprises a stage wherein the presence of ice is detected on at least one of the blades and, once said presence of ice is detected, comprises a stage wherein at least one ice removal routine is activated which comprises, in turn, a heating stage of at least one of the blades and a mechanical removing ice stage on at least said blade..
Acciona Windpower, S.a.

Control of a wind turbine with a fault condition

the present invention relates to control of wind turbines in a situation where a fault condition is detected. Control of a wind turbine is described where a control trajectory and a safe-mode trajectory are calculated based on the current operational state of the wind turbine.
Vestas Wind Systems A/s

A control system for wind turbines for reducing disturbances in an electrical grid

the invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point, e.g.
Vestas Wind Systems A/s

System and upgrading multivendor wind turbines

the present disclosure is directed to a system and method for controlling and/or upgrading aftermarket multivendor wind turbines. The system includes a turbine controller configured to control operations of the wind turbine, a safety device configured to provide a signal indicative of a health status of the safety device, and a secondary controller inserted between the safety device and the turbine controller.
General Electric Company

Conveyance device for an energy collector

the present invention provides a conveyance device for an energy collector such as a wind turbine, solar collector, or a combination thereof. The conveyance device is configured to orient the energy collector by moving the device to compensate for a change in the source of energy such as a change in power, direction, speed, location and a combination thereof.
Windular Research And Technologies Inc.

Method and determining loads of a wind turbine blade

method and blade monitoring system for monitoring bending moment of a wind turbine blade. The method comprises obtaining a first sensor set signal indicative of a first bending moment at a first sensor position different from the tip end along the longitudinal axis of the wind turbine blade, and estimating a bending moment at a first estimation position along the longitudinal axis based on the first sensor set signal, wherein the first sensor position is different from the first estimation position along the longitudinal axis.
Lm Wp Patent Holding A/s

Load-bearing composite panels, materials, products, and processes to make and use same

load-bearing composite panels, materials, and products made by surrounding with a long fiber and/or fiber cloth reinforced polyurethane resin, an assembly containing one or more load-bearing members, graphene, a structural polyurethane/resin sandwich composite and/or spider silk protein fiber-cloth-continuous fibers. The composite structures can provide stronger, lighter-weight structural items such as vehicle floor and body panels, bullet-proof anti-ballistic panel products, vehicle bullet-proof anti-ballistic body panel structures and floors, bullet-proof vests, vehicle chassis, monocoque chassis, motor homes chassis-bodies, fuselage floors and frames for aircraft and/or uav's, bicycle and motorcycle frames, wind turbine blades frames and structures, ship or boat haul body structures, shipment containers, pre-fabricated walls of buildings, train structure body or floor panels, solar panel supports, battery housings, mobile home walls, roof modules, truck beds, and truck trailer floors.

System and improving lidar sensor signal availability on a wind turbine

the present subject matter is directed to a system and method for sequencing light detecting and ranging (lidar) sensor beam signals from a lidar sensor mounted on a nacelle of a wind turbine with the rotor position of the wind turbine so as to improve signal availability. More specifically, the method includes generating, via the lidar sensor, one or more laser signals towards the rotor of the wind turbine, the rotor having one or more rotor blades.
General Electric Company

Planetary gear train for a wind turbine

the invention relates to a planetary gear train (1) for a wind turbine, comprising: a sun gear; an annular gear (13); a planet carrier (9) with multiple bearing seats (12); multiple planetary gear axles (8); multiple radial sliding bearings (23) for mounting the planet gear axles (8) in the planet carrier (9); multiple planet gears (5) which are each mounted in the planet carrier (9) by means of the planet gear axles (8). The planet carrier (9) has a parting plane (17) in the region of each of the bearing seats (12), wherein a first half shell (18) of one of the bearing seats (12) is formed by the planet carrier (9) and a second half shell (19) of one of the bearing seats (12) is formed in each case by a bearing cap (20)..
Miba Gleitlager Austria Gmbh

Magnetic damper for vibration absorbers

rotationally symmetric dampers (fig. 3a) of a new type for eliminating and avoiding vibrations in machines and installations, particularly wind turbines.
Esm Energie-und Schwingungstechnik Mitsch Gmbh

Methods and systems for removing and/or installing wind turbine rotor blades

a method for removing a rotor blade from a wind turbine may generally include installing a blade sock around an outer perimeter of the rotor blade, coupling a support cable to the blade root, lowering the rotor blade relative to the hub using the support cable, coupling at least one pulley cable between the rotor blade and a winch using at least one pulley, moving the pulley cable relative to the pulley to lower the rotor blade relative to the hub, applying a force through the blade sock as the pulley cable is moved relative to the pulley in order to control an orientation of the rotor blade and further lowering the rotor blade to a location on or adjacent to the support surface.. .
General Electric Company

System and de-icing a wind turbine rotor blade

the present disclosure is directed to systems and methods for de-icing a rotor blade of a wind turbine. The wind turbine has a nacelle mounted atop a tower.
General Electric Company

Carbon fiber motor rotor integrating propeller mount

a rotor for use with an airborne wind turbine, wherein the rotor comprises a front flange, a can, a rear flange, and a rigid insert comprising a propeller mount, wherein the front flange, can, and rear flange comprise one of carbon fiber and spun aluminum, wherein a rear end of the front flange is attached to a front end of the can, and the rear flange is mounted to a rear end of the can, wherein the rigid insert is bonded to the front flange; and wherein the rigid insert comprises a tube that axially extends within the rotor to allow for the positioning of a driveshaft therethrough.. .
X Development Llc

Power generation system

provided is a power generation system capable of efficiently converting wind power into electric power. The power generation system comprises: a pneumatic tire; a wheel on which the pneumatic tire is mounted; and at least one generator wind turbine attached, in a cavity defined by the pneumatic tire and the wheel, to the pneumatic tire and/or the wheel..
The Yokohama Rubber Co., Ltd.

Wind turbine power generating apparatus and operating the same

a method of operating a wind turbine power generating apparatus includes a step of obtaining a wind direction of a wind; a step of obtaining at least one of a wind velocity of the wind or an index of turbulence degree of the wind velocity; and a step of selecting an operation mode of the wind turbine power generating apparatus from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which a load applied to a wind turbine blade is smaller than in the normal operation mode, on the basis of whether the at least one of the wind velocity or the index of turbulence degree is at least a threshold. The threshold of the at least one of the wind velocity or the index of turbulence degree is variable in accordance with the wind direction..
Mitsubishi Heavy Industries, Ltd.

Wind turbine power generating apparatus and operating the same

a method of operating a wind turbine power generating apparatus including a wind turbine rotor having a wind turbine blade includes: a step of obtaining a load applied to the wind turbine blade; and a step of selecting an operation mode of the wind turbine power generating apparatus on the basis of the load, from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which the load applied to the wind turbine blade is smaller than in the normal operation mode.. .
Mitsubishi Heavy Industries, Ltd.

Controller for wind turbine, wind turbine, program for rotor turning, and rotor turning for wind turbine

a controller of a wind turbine for causing the wind turbine to perform rotor turning includes: an input part for receiving a target azimuth angle at which a rotor of the wind turbine is to be stopped; and a pitch control part configured to cause the wind turbine to perform a pitch control to stop the rotor at the target azimuth angle. The pitch control part is configured to: control a pitch angle of a wind turbine blade of the wind turbine so that the rotor rotates at a predetermined rotation speed which is constant, in a first period until the rotor reaches a control-switch azimuth angle immediately before the target azimuth angle; and control the pitch angle so that a rotation speed of the rotor decreases from the predetermined rotation speed in a second period after the rotor reaches the control-switch azimuth angle and before the rotor reaches the target azimuth angle..
Mitsubishi Heavy Industries, Ltd.

Wind tracing, rotational, semi-submerged raft for wind power generation and a construction method thereof

disclosed are a semi-submersible raft wind power generation unit and a construction method therefor. The raft wind power generation unit includes at least three floaters (12) and at least three wind turbines (21) configured to be placed on the floaters (12).

Improvements relating to reinforcing structures for wind turbine blades

a wind turbine blade including an elongate reinforcing structure, the reinforcing structure comprising a plurality of strips of fibre-reinforced polymer arranged into a stack structure, and at least one adjacent pair of the plurality of strips including an infusion promoting layer, wherein the infusion promoting layer is a fabric comprising a plurality of twisted yarns. The invention is also expressed as a method of assembling a wind turbine blade..
Vestas Wind Systems A/s

Wind turbine blade provided with surface mounted device

a wind turbine blade (10, 610) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft is described. A surface mounted device (70, 70′, 170, 270, 370, 470, 570, 670, 770) is attached to a surface of the wind turbine blade (10).
Lm Wp Patent Holding A/s

Lifting device for a wind turbine rotor blade

the present disclosure is directed to a lifting device for a rotor blade of a wind turbine. The lifting device includes at least one cradle and a vacuum sealing system configured with the cradle.
General Electric Company

Structure with rigid winglet adapted to traverse a fluid environment

a structure adapted to traverse a fluid environment includes an elongate body having a root, a wingtip, a leading edge and a trailing edge; and a rigid winglet associated with the wingtip and having a winglet body extending substantially normal to one of a suction side and a pressure side of the elongate body to a termination point that is rearward of the trailing edge. In an embodiment, the structure is a rotor blade that may be incorporated into a wind turbine..

Tethers for airborne wind turbines using electrical conductor bundles

a tether may include a core, a hybrid layer surrounding the core, and a jacket surrounding the hybrid layer. The hybrid layer may include a plurality of strength members, and a plurality of electrical conductor bundles.
X Development Llc

Stabilizing a wind turbine assembly

systems and methods for stabilizing a wind turbine assembly. In one embodiment the systems and methods include a turbine shaft to rotate a wind turbine motor, a vane support structure coupled to the turbine shaft, a vane coupled to the vane support structure by a vane shaft, and a circumferential bearing assembly positioned in relation to a rotational path of the vane around the turbine shaft..

Modular system for transporting wind turbine blades

a modular system for transporting wind turbine blades in at least two different spatial arrangements comprising two or more root end transport frames having a height h for supporting the root end, wherein h<d (d=bolt circle diameter), and two or more first tip end transport frames having a height h1 for supporting the blade towards the tip end, each first tip end transport frame has a base frame and a support bracket provided on top of the base frame, wherein each first tip end transport frame is stackable on top of a root end transport frame and vice versa, so the system is operable to stack successive blades in an alternating root end to tip end arrangement. The first tip end transport frame is replaceable with a second end transport frame that increase the inter-blade spacing, or with a tip end or a root end distance piece..
Lm Wp Patent Holding A/s

System and removing or installing a main shaft of a wind turbine

the present disclosure is directed to a system and method for removing or installing a main shaft of a drivetrain assembly of a wind turbine to and from a nacelle installed atop a wind turbine tower. The rail system includes at least one support component configured to support the main shaft.
General Electric Company

Apparatus and aerodynamic performance enhancement of a wind turbine

a virtual aerodynamic component for a wind turbine including at least one rotor blade connected to a hub. The at least one rotor blade defines an inner portion and a profiled outer portion.
General Electric Company

Flexible wind turbine apparatus

an airfoil for a wind turbine apparatus includes an airfoil body having an arcuate shape extending between a first end and a second end and an airfoil support secured to a midpoint on the airfoil body and connected to the outer end of the support arm. The airfoil body includes a first portion adjacent to the first end and a second portion adjacent to the second end.

Composite component having a safety edge

a composite component (130) such as a shear web for a wind turbine blade is described. The component comprises a moulded laminate (44) formed from one or more fibrous layers (40) integrated by resin and defining a laminate edge (48).
Vestas Wind Systems A/s

Wind turbine blade comprising root end bulkhead

a wind turbine blade (10) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft is disclosed. The rotor comprises a hub (8), from which the blade (10) extends substantially in a radial direction when mounted to the hub (8), the blade having a longitudinal direction (r) with a tip end (16) and a root end (14) and a transverse direction.
Lm Wp Patent Holding A/s

Mould for moulding wind turbine blade and assembly of mould

a mould for moulding a wind turbine blade or an elongate structural part thereof, the mould comprising a plurality of longitudinal elongate mould sections adapted to be fitted together in an end-to-end relationship to form a unitary mould, each mould section having a central mould portion between opposite end portions, each mould section being composed of a fibre reinforced resin matrix composite material, at least one end portion of each mould section forming an integral flange oriented substantially orthogonally downwardly with respect to an upper surface of the mould section, and the upper surface including a moulding surface and a recess located between the flange and the moulding surface, the recess extending across a transverse width of the mould section whereby when the flanges of adjacent mould sections are fitted together in an abutting relationship, the adjacent recesses form a combined recess separating the moulding surfaces of the adjacent mould sections.. .
Suzhou Red Maple Wind Blade Mould Co., Ltd.

Wind turbine with directly driven generator

a wind turbine system includes a wind turbine which has a wind turbine shaft rotatable around an axis, and a generator. The generator has shaft, a stator positioned on a machine housing, and a rotor interacting with the stator.
Siemens Aktiengesellschaft

Prefabricated footing for wind turbine towers

it is foreseen that the footing be executed in an excavation, such that a lower concrete slab (2), with its corresponding steel reinforcement, is obtained at the base of the same, and upon which a plurality of prefabricated partitions (3), likewise of concrete, are radially disposed in the shape of a crown at a prefabricated or executed in situ concrete zone (4), such that the spaces defined between these elements are filled with the material (5) obtained by means of the excavation, in order finally to achieve a total or partial upper slab (1) upon this assembly. In this way, and by means of the inclusion of prefabricated elements, the construction works are simplified, which affects favourably both the time frame of execution and the fabrication costs..
Inneo Torres, S.l.

Reducing or eliminating wind cut-in speed using solar powered wind blades with embedded solar cells

a method and an apparatus are provided for initiating rotation of blades of a wind turbine when wind speed is less than a cut-in speed. A solar powered wind turbine apparatus includes a solar dome with photovoltaic cells, operably connected to a rotor assembly, and an electric motor.

A profile wedge for attachment of an aeroshell extender piece

a wind turbine blade assembly comprising a wind turbine blade having a tip end and a root end, and a leading edge and a trailing edge with a chord length extending therebetween is described. The wind turbine blade assembly further comprises an aeroshell extender piece comprising a body for attachment to a trailing edge side of a profile of a wind turbine blade, the body having a first end for attachment to the trailing edge side of the profile, and a second trailing edge end to form an extended airfoil trailing edge profile for a portion of the profile of the wind turbine blade.
Lm Wp Patent Holding A/s

Rotor blades having structural skin insert and methods of making same

the present disclosure is directed to a method of manufacturing a rotor blade for a wind turbine. The method includes providing a blade mold of the rotor blade.
General Electric Company

Wind-turbine rotor blade, rotor blade trailing edge, producing a wind-turbine rotor blade, and wind turbine

a wind turbine rotor blade that has a rotor blade tip, a rotor blade root, a suction side, a pressure side, a rotor blade length, a profile depth and a pitch axis of rotation. The profile depth decreases along the rotor blade length from the rotor blade root to the rotor blade tip.
Wobben Properties Gmbh

Drive system for wind turbine with contra-rotating generator

the drive system for wind turbine with contra-rotating generator includes various embodiments of belt drive pulley systems for a direct drive contra-rotating wind generator. The generator has a magnetic rotor and an armature mounted on a shaft configured to rotate in the opposite direction from the magnetic rotor.
Kuwait University

Hydroelectric power generating system

the hydroelectric power generating system includes a reservoir for retaining a body of water and an outer vessel that surrounds a peripheral wall of the reservoir. A circumferential canal extends between an upper portion of the reservoir peripheral wall and the outer vessel.

Methods of non-destructive testing and ultrasonic inspection of composite materials

a method of non-destructive testing includes locating an ultrasonic transducer with respect to a component having a visually-inaccessible structure to collect b-scan data from at least one b-scan of the component and to collect c-scan data from at least one c-scan of the component. The method also includes filtering the b-scan data and the c-scan data to remove random noise and coherent noise based on predetermined geometric information about the visually-inaccessible structure to obtain filtered data.
General Electric Company

Kit for a wind station, and method

kit and method for a wind station comprising a fixed speed wind turbine with a generator being coupled to a grid by means of a coupling device so that the turbine operates at a fixed grid current frequency of the grid. The kit (100) is adapted to be coupled between the generator (10) of the wind turbine (1) and the grid (2), replacing at least the coupling device, the kit (100) turning the fixed speed wind turbine into a variable speed wind turbine..
Ingeteam Power Technology, S.a.

A wind turbine yaw control method and system

the present invention discloses a wind turbine yaw control method and system, the method comprising the following steps: establishing a reference model, giving the optimal yaw reference model different wind speeds for wind shift angles; using model reference adaptive control: getting the adaptive control input so that the difference between the actual yaw angle deviation of the wind and the optimal wind yaw angle deviation is at a minimum. The wind turbine yaw control method and system of the present invention can adaptively track the wind speed in different sections of the optimum wind yaw deviation, improve operating performance under the influence of factors such as wind direction measurement and bias of the yaw system in order to achieve maximum efficiency absorption of wind energy, as well as optimize wind turbine power generation to improve economic efficiency and the operation of the entire wind farm..
Guodian United Power Technology Company Limited

Dual rotor wind power assembly (variants)

the invention relates to propeller-type horizontal-axis wind turbine assemblies. All of the present assembly variants comprise, mounted on a tower, a wind turbine with two coaxial wind propellers on a rotating platform, a gearbox, systems for controlling the pitch angles of the blades and the position of the platform, and an electric generator.

Platform for generating electricity from flowing fluid using generally prolate turbine

a platform-like device for generating electricity from moving fluids has two has at least two fluid turbines coupled to one another through a frame. The fluid turbines are adapted to rotate in opposite directions.
Natural Power Concepts, Inc.

Wind turbine with optical pressure sensors and operating a wind turbine

wind turbine with at least one rotor blade and at least one optical pressure sensor arranged on the rotor blade, and method for operating the wind turbine.. .
Wobben Properties Gmbh

An aeroshell extender piece for a wind turbine blade

a flexible aeroshell extender piece for an inboard part of a wind turbine blade is described, along with an associated method of manufacture. The flexible aeroshell is formed by first assembling a consolidated aeroshell piece, and then making a series of slits at the trailing edge of the aeroshell piece.
Lm Wp Patent Holding A/s

Compositions comprising a fiber material and a thermoplastic binder

the invention relates to compositions comprising a fiber material and a specific thermoplastic binder. The thermoplastic binder comprises at least one thermoplastic polyurethane polymer (a), wherein said thermoplastic polyurethane polymer (a) comprises a reaction product of (i) at least one polyester polyol and (ii) at least one polyisocyanate, optionally at least one diol (iii) which is different from the polyester polyol (i) is contained.
Henkel Ag & Co. Kgaa

Floating wind turbine with a floating foundation, and installation of such a wind turbine

a floating downwind turbine comprising: a floating foundation; a tower which is rotationally fixed on the floating foundation; an energy conversion unit which is mounted on the tower, comprises a rotor and is rotationally fixedly connected to the tower; and at least one tensioning element which connects the tower or the energy conversion unit to the foundation in the upwind direction, the foundation having three legs, one leg of which is longer than the other two legs, the legs being interconnected in a y shape and the tower, being arranged on the foundation in the connecting region of the legs, and the longest leg extending in the upwind direction and being connected to the tower or to the energy conversion unit by the tensioning element.. .
Aerodyn Engineering Gmbh

Active promotion of wind turbine tower oscillations

the invention relates to a method for determining dynamic parameters associated with damping properties of a wind turbine. The method involves active excitation of tower oscillations by adjusting the pitch or rotor torque.
Vestas Wind Systems A/s

Wind turbine tower and erecting a wind turbine tower

a wind turbine tower is provided with a plurality of tower segment which are placed one on top of the other in order to form the tower. A lower tower segment has a lower end face, and in the lower region of the lower tower segment, the lower tower segment has a plurality of recesses and through-bores between the lower end face of the lower tower segment and a base of the recesses.
Wobben Properties Gmbh

Wind turbine pitch cabinet temperature control system

a wind turbine temperature control system for maintaining the temperature of an energy storage device, the temperature control system has a breaking resistor for providing heat to the energy storage device and a power supply for causing a current to flow in the breaking resistor.. .
Moog Unna Gmbh

Wind turbine control method and associated wind turbine

the present invention relates to a wind turbine control method that makes it possible to detect misalignments in said wind turbine with respect to the wind direction, wherein once these situations are detected, the control method of the present invention makes it possible to perform an automatic correction of the control parameters and to return the wind turbine to its optimal operating point, together with the associated wind turbine.. .
Acciona Windpower, S.a.

Pre-cast concrete foundation of modular construction for telecommunication or wind turbine tower

a modular foundation design for supporting a wind turbine or telecommunication tower, comprised of pre-cast concrete modules offering advantages of off-site manufacture and ease of transportation, but which deign is simple to construct. A base slab is provided comprised of sub-modules/base members arranged together in juxtaposed position which together provide a horizontal surface on which pre-cast pipe members may be stacked in end-to-end position to form a pedestal.
649119 N.b. Inc.

Power generation system of a multi-converter wind turbine and control method thereof

wind turbine comprising a plurality of converters, which are dynamically switched between at least a first standby state, a second running state, and a third state with an active direct current link. Converters are switched from the first standby state to the third state when a required reactive power is higher than a reactive power capability of converters on the second running state and when a voltage transient occurs..
Gamesa Innovation & Technology, S. L.

Systems and methods for crack detection in doubly-fed induction generators

a fault detection system for a wind turbine includes a doubly-fed induction generator (dfig). The dfig includes a wye-ring configured for at least three electrical phases.
General Electric Company

Lightning measuring system for a wind turbine

a lightning measuring system (lms) for measuring lightning current parameters in a down conductor (dc) in a wind turbineis disclosed, said lightning measuring system (lms) comprising—a sensor arrangement (sea) being arranged to measure on said down conductor (dc), —a data collection unit (dcu), —a connection arrangement (ca) electrically connecting said sensor arrangement (sea) with said data collection unit (dcu), and—an insulating arrangement (ins), wherein said sensor arrangement (sea) and at least a part of said connection arrangement (ca) and/or said down conductor (dc) being enclosed in said insulating arrangement (ins) thereby defining—a minimum insulation distance (mid) between said sensor arrangement (sea) and said down conductor (dc), and—a minimum surface distance (msd) between an exposed part of said down conductor (dc) not being enclosed by said insulating arrangement (ins) and an exposed part of said connection arrangement (ca) not being enclosed by said insulating arrangement (ins), for which said insulating arrangement (ins) is effective to prevent insulation breakdown between said down conductor (dc) and said sensor arrangement (sea) and to prevent surface flashover between said exposed part of said down conductor (dc) and said exposed part of said connection arrangement (ca).. .
Global Lightning Protection Services A/s

Wind turbine with a modular drive train

a wind turbine wherein the drive train section corresponding to the main shaft and the first stage of the gearbox is structured by two separable modules and comprises a connecting device between the main shaft and the planet carrier configured to allow a flexible coupling between them. The first module comprises the main shaft, its housing and two bearings as a supporting mechanism of the main shaft in its housing.
Gamesa Innovation & Technology, S. L.

A wind turbine with a tower-mounted heat exchange structure

a wind turbine with a tower; a nacelle supported by said tower; at least one unit to be cooled and arranged in the tower or the nacelle; a tower mounted heat exchange structure arranged outside the nacelle and tower; and a circuit facilitating a flow of a fluid medium between the at least one unit and the heat exchange structure. To improve thermal convection with the ambient space, the heat exchange structure comprises a set of panels mutually angled and extending outwards from the tower such that a flow of ambient air can pass transversely trough the panels and thereby cool the unit..
Vestas Wind Systems A/s

System and repairing dents in wind turbine tower sections and a related dent repair tool

a system for repairing dents in a wind turbine tower section may generally include a dent repair tool having a tool hub and a plurality of arms configured to extend radially outwardly from the tool hub towards an inner surface of the tower section. The tool may also include a linear actuator configured to linearly actuate a plunger of the actuator arm relative to the tool hub such that the plunger applies a radially outward force against the inner surface of the tower section at or adjacent to a location of a dent formed in the tower section.
General Electric Company

Operating a wind turbine

a method is proposed for operating a wind turbine, including the following steps: deriving at least one turbulence characteristic of atmosphere hitting the wind turbine, determining at least one wind turbine specific parameter based on the at least one derived turbulence characteristic, and operating the wind turbine according to the at least one determined turbine specific parameter is provided. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are also provided..
Siemens Aktiengesellschaft

Wind turbine with improved safety features

the wind turbine includes a wind driven turbine wheel rotatable about a central axis that has sail wings that catch the wind and rotate the turbine wheel. An anchor has its anchor line attached to the turbine wheel at its axis of rotation to prevent tilting the wind turbine in response to high wind conditions.

Wind turbine with improved mast assembly

the wind turbine includes a wind driven turbine wheel rotatable about a central axis that has sail wings that catch the wind and rotate the turbine wheel. An anchor has its anchor line attached to the turbine wheel at its axis of rotation to prevent tilting the wind turbine in response to high wind conditions.

Calibrating a yaw system of a wind turbine

a method is provided for calibrating a yaw system of a wind turbine, including the following steps: determining a true sun position in relation to the position of the wind turbine, calibrating the yaw system based on the true sun position and based on turbine specific information. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are suggested for performing said method..
Siemens Aktiengesellschaft

System and controlling wind turbines

a control system for a wind turbine is provided. The wind turbine includes at least one stationary component.
General Electric Company

Wind turbine diagnostic apparatus with diverse sensor testing

a wind turbine comprising: a backup power supply, a processor and a first sensor unit and a second sensor unit configured to measure at least one of a voltage value and a current value, wherein the voltage value and current value are indicative of the condition of the backup power supply. The first sensor unit is configured to measure the at least one of the voltage value and the current value at a first location in the wind turbine, and the second sensor unit is configured to measure the at least one of the voltage value and the current value at a second location in the wind turbine different from the first location.
Moog Unna Gmbh

Pressure and vacuum assisted vertical axis wind turbines

a system and apparatus for wind energy conversion comprising a savonius style rotor attached to a drive shaft; a first airfoil configured to block air pressure along a return side of the rotor; an airfoil cowling configured to direct blocked air on the return side of the rotor to intersect with air on the drive side of the rotor; at least one vacuum compensator configured on a top edge of the first airfoil wherein the at least one vacuum compensator redirects the blocked air on the return side of the rotor onto the driven side of the rotor; an anemometer; a wind direction indicator; and a computer system operatively connected to the roller and track assembly wherein the computer system adjusts the orientation of the rotor according to a wind speed measured by the anemometer and a wind direction measured by the wind direction indicator.. .

Fluid interface devices with stabilization features as well as airfoil assemblies including same

fluid interface device, such as may be used in association with airfoil assemblies, can include at least one movable band oriented such that the band moves in a direction relative to an associated relative fluid flow. The at least one movable band can be supported such that at least a portion of an outer surface of the movable band is exposed to the associated relative fluid flow.

Pressure controlled wind turbine enhancement system

the present invention provides a pressure controlled wind turbine enhancement system and a method of enhancing the airflow past a wind turbine, the enhancement system including a two part conical nozzle to be located upwind or upstream of a turbine in order to augment the natural flow of air past blades of the turbine in a manner which produces increased power output from the turbine.. .
New World Energy Enterprises Limited

Curved cross-section wind turbine tower and wind turbine comprising said tower

the tower comprises: a wall having an orifice for accessing the interior of the tower, and an outer surface defined by generatrices; and a reinforcement frame joined to the tower in the orifice zone, and comprising least two parts joined one to each other. Each part has a mid-plane that is parallel to at least one generatrix, the mid-planes of at least one pair of adjacent parts forming an angle other than 180° therebetween.
Acciona Windpower, S.a.

Novel wind power charging circuit with three-phase, single-stage and bridgeless framework

the present invention provides a novel wind power charging circuit with three-phase, single-stage and bridgeless framework. This novel wind power charging circuit is developed based on an isolated single-ended primary-inductance converter (sepic) having buck-boost converting function, and can be applied in a wind turbine system for increasing the operation scope of the input voltage provided by a wind turbine of the wind turbine system, so as to facilitate the wind turbine system include wide-range operation scope under different wind speeds, such that the electric energy production and the electromechanical conversion efficiency of the wind turbine system are able to be effectively enhanced.
National Chung-shan Institute Of Science & Technology

Methods and systems for inspecting a wind turbine blade

a method of inspecting a connection joint including a first side coupled to an opposite second side along a bond, extending along an edge. The method includes generating at least one first sound wave at a first location on the first side, wherein the first location is at a first distance from the edge.
General Electric Company

Remote tracking of automatic lateral switch operations

disclosed is a system and method for monitoring wind turbines, generally comprising: measuring sound levels of a plurality of wind turbines; checking the sound levels of each of the plurality of wind turbines against sound levels of others of the plurality of wind turbines; detecting that one of the plurality of wind turbines is an anomalous wind turbine based upon the checking; and generating a corrective action alarm signal identifying the anomalous wind turbine based upon the detecting.. .
Inventus Holdings, Llc

Methods and systems for controlling a wind turbine

a method for controlling a wind turbine includes receiving signals representative of oncoming wind speeds approaching at least a portion of a wind turbine, receiving background noise and signals representative of signal-to-noise ratios corresponding to the signals representative of the oncoming wind speeds, determining an availability-and-atmospheric noise in the signals based on one or more of the signal-to-noise ratios, blade positions of blades of the wind turbine, and the yaw position of a nacelle of the wind turbine, determining a wind incoherence noise in the signals due to a change in the oncoming wind speeds while approaching at least the portion of the wind turbine, determining a net measurement noise in the signals based on the background noise, the availability-and-atmospheric noise, and the wind incoherence noise, and controlling the wind turbine based at least on the signals representative of the oncoming wind speeds and the net measurement noise.. .
General Electric Company

Systems and methods for a winch drum and drum door

wind energy systems, such as an airborne wind turbine (“awt”), may be used to facilitate conversion of kinetic energy to electrical energy. An awt may include an aerial vehicle that flies in a path, such as a substantially circular path, to convert kinetic wind energy to electrical energy.
X Development Llc

Anchoring line for a floating base, comprising an elastic device

the invention relates to anchoring systems for floating bases for the production of energy at sea (floating wind turbine, wave energy, floating hydraulic turbines, etm platform, etc.) and/or for petroleum exploitation at sea, constituted by at least one anchoring line which comprises at least one portion which is constituted by cable, chain or a combination of the two and at least one elastic device.. .
Techlam Sas

Wind turbine components

a method of making a wind turbine component comprises providing a mould (7), placing a fibrous pre-form (60) in the mould (70), admitting resin into the mould and curing the resin. The method further comprises heating (58) the fibrous pre-form before placing the pre-form in the mould..
Vestas Wind Systems A/s

A roll of structural material, it's making and a making a wind turbine blade

a roll (16) of structural material for use in the manufacture of large composite structures such as wind turbine blades is described. The roll (16) comprises an elongate stack of structural layers (10) fastened together and wrapped around a reel (14).
Vestas Wind Systems A/s

Microwave absorbing composite for turbine blade applications

the invention provides a composite laminate comprising an outer, an intermediate and an inner section comprising, respectively, first layers of composite material and one or more functional layers having a printed circuit for absorbing the electromagnetic radiation incident on the composite laminate; second layers of composite material; a conducting layer contiguous to the intermediate section and third layers of composite material. The values of the resistivity of the functional layer and the thickness of the intermediate section are comprised in predefined ranges for the attenuation of the reflection of electromagnetic radiation of the composite laminate in the s or x bands up to a peak of −20 db.
Gamesa Innovation & Technology, S.l.

Method for computer-aided installation control optimization using a simulation module

an interactive assistance system and method for computer-aided control optimization for a technical system is provided. For example, a gas or wind turbine, in particular for optimizing the action sequence or the control variables of the plant (e.g.
Siemens Aktiengesellschaft

Bearing for wind turbine

a bearing assembly (12) for a rotating element (13) has one race (15) adapted to be fixed relative to ground (11) and to selectively be free for arcuate movement relative to ground. In a preferred embodiment a selective locking device (18) is provided for the relatively fixed/movable race (15)..
Ricardo Uk Ltd.

Stacking wind turbine blades for sea transport

the present invention relates to a method of stacking wind turbine blades for sea transport. An improved way of arranging blades for sea transport, where less structural framework is needed, would be advantageous.
Vestas Wind Systems A/s

A vertical axis wind turbine with controllable output power

a vertical axis wind machine having controllable output power, comprising a wind machine base, and an integrated shaftless circular three dimensional framework having a rigid connection with an annular floating body; blades are installed on the three dimensional framework; the angles of attack of the blades are controlled via a computer; the wind machine base is provided with an annular groove with water; the annular floating body using the rigid connection to support the three dimensional framework is the bottom structure of the wind machine rotating body, and the shape of the annular floating body is consistent with the inner cavity of the annular groove; the angles of attack and lifting force direction of the blades installed on the wind machine can be automatically controlled by computer according to the momentary wind force on the blades; the blades of the wind machine are of a double-sided lift type; the lift-type blades are in the shape of wings, and the front edges thereof are normally in the windward direction, and the rear edges are in the downwind direction.. .

Distributed control system

a system and method for pressure based load measurement are provided. The system and method measure at least one pressure differential on an airfoil and determine at least one aerodynamic load associated with the at least one pressure differential.
Frontier Wind, Llc

Wind turbine rotor blade trailing edge segment

a trailing-edge segment of a wind-turbine rotor blade for increasing a profile depth of the rotor blade of a wind turbine. The trailing-edge segment of a wind-turbine rotor blade comprises at least one inner blade segment, having an inner blade shell, at least one middle blade segment, having a middle blade shell.
Wobben Properties Gmbh

Torque absorber for wind turbine gearboxes

torque absorber for wind turbine gearboxes, comprising a pair of torque arms configured to be coupled on one side to a pair of corresponding protrusions of a gearbox and on the other side to a fixed frame. Each torque absorber comprises at least one pair of ridges that externally embrace the corresponding protrusion; wherein a first absorbing element is located between the ridges and in contact with both the torque absorber and the protrusion of the gearbox; and wherein a second absorbing element is located between the ridges in contact with both the torque absorber and the fixed frame, defining a cushioned union between both components..
Gamesa Innovation & Technology, S.l.

Lightning current transfer arrangement of a wind turbine

a lightning current transfer arrangement for a wind turbine enables lightning current and electrostatic discharge current to be discharged between first and second parts of the wind turbine that are rotatable relative to each other. The lightning current transfer arrangement comprises a current transfer unit electrically coupled to the first part, and an electrically conductive slideway electrically coupled to the second part and rotatable relative to the current transfer unit.
Vestas Wind Systems A/s

Wind turbine nacelle structure

a wind turbine is presented comprising a nacelle (2), mounted on a tower (3), the nacelle housing components including a generator (5) connected to a rotor (4), the nacelle comprising a cover (21) and a skeleton (22) to which the cover is attached, the skeleton comprising a plurality of connected elongated skeleton members, the skeleton members comprising a first skeleton member (221) and a second skeleton member (222) being non-parallel to the first skeleton member, a bolt (224) extending in parallel with the second skeleton member being provided for a connection between the second skeleton member and the first skeleton member. Also, a method is presented for removing a component (5) housed in a nacelle of a wind turbine, comprising disconnecting a second skeleton (222) member from first skeleton members (221), removing the second skeleton member from a path of removal of the component, and removing the component along said path..
Vestas Wind Systems A/s

Portable power generating solar cell wind turbine

electrical power may be generated from wind and/or solar inputs. A plurality of rotor blades may extend radially from a rotor hub.
Design, Research And Analysis Corporation

Wind turbinecontroller with pitch feedback control loop in partial load

the present invention relates to control of the power output of wind turbine generator that operates in derated mode to generate a produced power output level lower than an available power level. A pitch system 48 sets the blade pitch of a rotor to a pitch value based on the received power reference signal 40.
Vestas Wind Systems A/s

System for thrust-limiting of wind turbines

the present invention relates to a control system for thrust-limiting of wind turbines, which wind turbine comprises at least one tower, which tower carries at least one nacelle which nacelle comprises a rotating shaft, which shaft is rotated by one or more blades, which blades at pitch regulated by a pitch control system. It is the object of the present invention to reduce mechanical load and stress of a wind turbine.
Mita-teknik A/s

Wind-turbine rotor blade, trailing edge for wind-turbine rotor blade tip, producing a wind-turbine rotor blade, and wind turbine

a trailing edge for a rotor blade tip of an aerodynamic rotor of a wind turbine. The trailing edge comprises a trailing edge delimiting line, which replicates the contour of the trailing edge, and multiple serrations to improve flow behavior at the trailing edge.
Wobben Properties Gmbh

Modular transporting tower assembly of wind turbine

a system and method are used for transporting a plurality of tower sections of a wind turbine on beds of transport devices, such as flat railcars. Supports affix at support locations on beds to accommodate at least one of the tower sections on each of the transport devices.
Utc Overseas, Inc.

Support tower, particularly for a wind turbine

a support tower, particularly for a wind turbine. The support tower has at least a first elongated component which is internally hollow and at least a second elongated component which is slidably coupled to the at least a first elongated component and movable relative to the at least a first elongated component at least between a retracted position.
Micoperi Energia S.r.l.

Foundations system for towers and installing the foundations system for towers

foundation system for towers, especially for onshore wind turbines, comprising a central shaft buried or partially buried, preferably hollow and formed by dowels made from precast concrete, an essentially flat lower slab and completely buried, and lateral support means in the form of inclined struts that are joined at their upper end with the central shaft and at its lower end with the lower slab, and that are preferably entirely buried. The wind tower is located on the partly buried main shaft.
Esteyco S.a.p

Improvements relating to wind turbine blade manufacture

a method of making a wind turbine blade, and the turbine blade resulting form the process, is described in which correct alignment of the shear webs (42a, 42b) upon mould (30) closing is ensured. The method involves providing a first half shell (32a) and a second half shell (32b) to be joined together to form the wind turbine blade.
Vestas Wind Systems A/s

Electrostatic noise grounding system for use in a wind turbine and a rotor and wind turbine comprising the same

disclosed herein is a wind turbine rotor which includes a plurality of blades and a hub root, wherein at least one blade is provided with at least one electrostatic noise grounding system. The electrostatic noise grounding system includes an insulated rod having a first end and a second end, a conductive core passing through the insulated rod, a first conductive element connected to the conductive core at the first end of the insulated rod, and a second conductive element competed to the conductive core at the second end of the insulated rod.

Wind turbine noise reduction with acoustically absorbent serrations

a wind turbine blade includes a trailing edge including a radially inboard portion and a radially outboard portion opposite the radially inboard portion. The trailing edge further includes at least one serrated portion extending at least partially between the radially inboard portion and the radially outboard portion.

Wind turbine auxiliary circuit control

systems and methods for controlling operation of one or more auxiliary circuits in a wind turbine system are provided. For instance, a grid event associated with the wind turbine system can be detected.

Wind turbine blade comprising a lightning protection system equipped with radar absorbing material

a wind turbine blade having a radar absorbing material (ram) and a lightning protection system arranged for guaranteeing the performance of the lightning protection system and the integrity of the ram. The lightning protection system comprises lightning receptors located at a tip region and one or two down-conductors disposed inside of the wind turbine blade for driving lightning current to ground.

Wind turbine blade manufacture

a method of making a root end of a wind turbine blade is described. The root end has a root end surface that connects to a wind turbine hub via a pitch bearing when the blade is installed on a wind turbine, and the method comprises providing a plurality of bores in the root end of the blade, each bore extending axially into the blade and having an opening defined at the root end surface; providing a plurality of plugs, each plug having a substantially solid first end portion; inserting the plugs into the respective bores each to a depth whereby the first end portions of the respective plugs extend inside the bores and form a seal against an internal surface of the bore and a sacrificial portion of the first end portion of each plug protrudes from the opening of the respective bore at the root end surface; and machining the root end surface to form a substantially flat root end surface for interfacing with the pitch bearing, wherein the step of machining the root end surface comprises removing the protruding sacrificial portions of the protruding plugs leaving the remaining first end portions of the respective plugs substantially flush with the root end surface..

Custom fit blade tip for a rotor blade assembly of a wind turbine and fabrication

a rotor blade assembly including a first blade section including a joint end and a custom fit second blade section including a joint end, and a method of fabricating the rotor blade assembly is disclosed. One of the first blade section or the custom fit second blade section includes an inner surface defining a cavity.

Sensing system and method

a system includes a resonant sensor in contact with oil within a gearbox of a rotor system, such as a wind turbine, and one or more processors. The sensor includes electrodes and a sensing circuit that generates electrical stimuli having frequencies applied to the oil at different times during a life of the gearbox.
General Electric Company

Planetary gearing having an emergency lubricating device

a transmission for a wind turbine has a planetary gearset with a fixed sealing surface and at least one cavity. The gearset includes a rotating planetary carrier or a rotating ring gear.
Zf Wind Power Antwerpen N.v.

Offshore wind turbine, constructing offshore wind turbine, and offshore wind power generator

a method for constructing an offshore wind turbine includes: attaching all or a part of electrical products to a tower on land; stowing, on a work platform, the tower to which the electrical product is attached; and disposing, on a foundation, the tower, to which the electric product is attached, by using a crane of the work platform in the sea. In addition, the electrical products are classified into special high-voltage devices and the other electrical products, the special high-voltage devices are modularized on land, the other electrical products are attached to the tower on land, and the modularized special high-voltage devices and the tower, to which the other electrical products are attached, are disposed on the foundation by using the crane of the work platform in the sea..
Hitachi, Ltd.

System for dynamic pitch control

the present invention relates to a system for dynamic pitch control primarily for wind turbine blades, which system calculates the pitch position of the wind turbine blades independently, which control system performs feedback regulation. The object of the pending patent application is to perform effective pitch regulation and hereby to reduce thrust on the tower and the rotor.
Mita-trknik A/s

Vertical axis wind turbine and operating such a turbine

a vertical axis wind turbine includes two or more cells arranged one above the other along a vertical machine axis, in which each of the cells includes a plurality of vertical blades which are arranged within the cell distributed on a concentric circle about the machine axis and which are connected so as to be able to move together on this circle and which are rotationally fixed with a main shaft, and in which the blades in the cell are each individually mounted so as to be able to rotate about a vertical axis of rotation which in particular runs internally through them. Assigned to each of the blades are means by which the blade is made to adopt, a rotational position, about its axis of rotation, which is predetermined and can be changed at any time..
Agile Wind Power Ag

Wind turbine

a wind turbine including a body, a blade set, a guiding module, a door set, and a fluid recovering element is provided. The body has a fluid inlet and a fluid outlet, wherein the fluid inlet includes a guiding area and a first opening area.

Wind turbine rotor blade with a rotor blade connection and producing same

a wind turbine rotor blade with a rotor blade tip, a rotor blade root, and a rotor blade connection in the region of the rotor blade root with a rotationally symmetrical flange coupling is provided which has a first and a second end. The first end of the flange coupling has multiple bores for receiving fastening means for fastening to a hub of a wind turbine.
Wobben Properties Gmbh

Vortex generator, wind turbine blade, and wind turbine power generating apparatus

a vortex generator for a wind turbine blade to be mounted to a wind turbine blade includes: a platform portion to be mounted to a surface of the wind turbine blade; and at least one fin disposed upright on the platform portion. The platform portion has a cross section having a curved convex shape, at least along a blade spanwise direction of the wind turbine blade..
Mitsubishi Heavy Industries, Ltd.

Rotor blade with noise reduction means

a rotor blade for a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section with a leading edge, and a trailing edge section with a trailing edge.
Siemens Aktiengesellschaft

Vortex generator, wind turbine blade, and wind turbine power generating apparatus

a vortex generator for a wind turbine blade includes a fin protruding from a surface of the wind turbine blade, being oriented so that a fin chord of the fin is oblique to an in-flow direction of wind which flows toward the wind turbine blade, having a suction surface which faces toward downstream with respect to the in-flow direction of the wind and which has a curved convex shape, and having a maximum fin blade-thickness ratio tmax/c which satisfies an expression of 0.10≦tmax/c≦0.12 in a height range of at least a part of the fin, where the maximum fin blade-thickness ratio tmax/c is a ratio of a maximum fin blade thickness tmax to a fin chord length c.. .
Mitsubishi Heavy Industries, Ltd.

Turbinator

the invention relates to a improved wind turbine that is used for converting wind energy into electrical energy. The shape of the wind turbine is like a set of concentric circular rings.

Aft rotor ducted wind turbine

a wind energy extraction apparatus utilizing a separate surface enclosing the turbine rotor is disclosed. An embodiment of the present invention includes a slotted and un-slotted duct of specified geometry enclosing a wind turbine rotor in such a manner as to provide acceleration of the ambient air though the rotor at a velocity above that which an open rotor exposed to the freestream would experience, thereby resulting in an increased amount of energy extraction relative to a comparable open rotor.
Clarkson University

Multi-tiered wind turbine apparatus

a multi-tiered wind turbine apparatus includes a support unit, a rotary shaft and a plurality of first blade modules. The rotary shaft is rotatably connected to the support unit.

Variable area blade turbine and conditioning flow deflectors device and method

a mechanism to provide controlled variable area blades for fluid driven tangential turbines is disclosed, where the spindle axis is perpendicular to the fluid flow, applicable in vertical axis hydraulic turbines but extensive to horizontal axis or wind turbines, with the rotor completely immersed on the flow. Each blade varying its area at selected position of the rotor turning, increasing to maximize conversion of the kinetic energy of the fluid onto mechanical rotational power of the shaft, or reducing to minimize drag moving opposed to such current.
Corporacion Andina De Fomento

Improved apparatus

the present invention relates to an apparatus for providing access to equipment or structures that require maintenance. More particularly, the present invention is suitable to provide access to equipment or structures located offshore, such as wind turbines or structures for oil and gas production.
Celtic Design Consultants Limited

Overvoltage protection self-trigger circuit for double fed induction generator (dfig) wind power system

provided is an overvoltage protection device for protecting a wind turbine against overvoltage. The device includes a double fed induction generator (dfig) including a rotor connection including a plurality of electrical connections coupled to rotor leads of the dfig and a stator connection including a plurality of electrical connections coupled to stator leads of the dfig.
Ge Energy Power Conversion Technology Ltd

Device for mounting a line pipe in a rotary shaft of a wind turbine, rotor shaft and wind turbine

a device for mounting a line pipe in a rotor shaft of a wind turbine. The invention also relates to a rotor shaft for a wind turbine and to the wind turbine itself.
Nordex Energy Gmbh

Condition monitoring system and wind power generation system using the same

a condition monitoring system for a wind turbine includes: each sensor to sense a condition of equipment; a monitor device configured to generate a diagnosis parameter based on a detection result of each sensor; a data server configured to diagnose a failure of the equipment based on the diagnosis parameter; and a rotation angle sensor for sensing the nacelle's rotation speed. The data server is configured to correct the diagnosis parameter based on a sensed result of the rotation angle sensor, and diagnose whether the equipment has a failure by comparing the corrected diagnosis parameter with a predetermined threshold value..
Ntn Corporation

System and stabilizing a wind farm during one or more contingency events

the present disclosure is directed to a system and method for stabilizing disconnection of one or more wind turbines in a wind farm connected to a power grid during one or more grid contingency events. The method includes determining, via one or more processors, a phase-locked loop error signal for each of the wind turbines based on sensor signals from the plurality of wind turbines.
General Electric Company

Wind turbine rotor blade, wind turbine and operating a wind turbine

a rotor blade of a wind turbine, comprising a first rotor-blade portion and a second rotor-blade portion. In this case, the first and the second rotor-blade portion constitute a total length of the rotor blade and, upon a rotation of the rotor blade, the first rotor-blade portion and the second rotor-blade portion can be moved relative to each other, along a longitudinal axis of the rotor blade, as a result of a centrifugal force acting upon the rotor blade, in such a way that the total length of the rotor blade can be altered..
Wobben Properties Gmbh

Wind turbine device having a flow guide casing

a wind turbine device includes a rotary unit and a flow guide casing. The rotary unit includes a rotary shaft and a plurality of blades connected to and extending axially along the rotary shaft.

Vertical axis wind turbine structure

a vertical axis wind turbine structure is provided that comprises an upstanding structure having a plurality of levels, each level supporting a vertical axis wind turbine assembly therein. Each vertical axis wind turbine assembly drives a generator that develops electrical power.

Ultrasonic bat deterrent system

a bat deterrent system to deter bats from approaching wind turbines may include a first deterrent box having a first and second transducer bank. The first transducer bank may include a first set of transducers located on a first plane and a second set of transducers located on a second plane.

An equipment compartment frame of a power control module of a wind power turbine and methods related thereto

the invention relates to an equipment compartment frame of a power control module of a wind turbine. The frame includes a polygonal beam structure (17) in one plane and a plurality of standing beams (18) attached to the polygonal beam structure (17) at at least some of the corners of the polygonal beam structure (17).
Vestas Wind Systems A/s

Method for performing up-tower maintenance on a gearbox bearing of a wind turbine

the invention relates to a method for performing up-tower maintenance on a gearbox bearing of a wind turbine. In particular, a method for performing up-tower maintenance on a gearbox of a wind turbine is disclosed.
General Electric Company

Wind turbine rotor blade having an electric heating device

wind turbine rotor blade having an electric heating device for heating a heatable surface region which extends over a longitudinal section of the wind turbine rotor blade, wherein the electric heating device has a blade-tip-side end, a blade-root-side end and two profile-trailing-edge-side edges, and two outer electric conductors which are connected to the electric heating device along the profile-trailing-edge-side edges and via which the electric heating device can be supplied with a heating current, wherein at least one central electric conductor which is connected to the electric heating device at a distance from the two profile-profiling-edge-side edges in such a way that the electric heating device is divided by the at least one central electric conductor into at least two partial regions which each extend over the longitudinal section and can be supplied with an electric heating current separately from one another via two of the conductors.. .
Nordex Energy Gmbh

Wind turbine having a slip ring transmitter

a wind turbine having a slip ring transmitter between a rotor hub and a nacelle for transmitting electrical signals with a data protocol. The slip ring transmitter is equipped with a signal amplifier device on the transmission side and with a signal evaluation device on the reception side.
Nordex Energy Gmbh

Tower section production process

the application relates to wind turbine tower section production methods and in particular to methods of manufacturing a plurality of elongate tower segments for forming a wind turbine tower section, the tower section constructed from a plurality of elongate tower segments connected along their respective longitudinal edges. The tower section is formed from a plurality of cans connected end to end and is divided into elongate segments by cutting along two or more cut lines extending along the length of the tower.
Vestas Wind Systems A/s

System and categorizing trip faults of a wind turbine power converter

the present subject matter is directed to a method for managing and/or categorizing trip faults of an electrical component, such as power converter, of a wind turbine. The method includes receiving, via a local controller of the wind turbine, an indication of at least one trip fault in the electrical component of the wind turbine.
General Electric Company

Turbine blade arrangement

a wind turbine arrangement including a first rotatable blade arrangement and a second rotatable blade arrangement. The first blade arrangement forms part of a first wind turbine, and the second blade arrangement forms part of a second wind turbine.

Control of wind turbines in response to wind shear

a wind turbine is controlled in response to an estimate of vertical and/or horizontal wind shear. A tilt moment is estimated from flapwise and edgewise blade bending moments, azimuth and blade pitch positions and used to estimate vertical wind shear.
Vestas Wind Systems A/s

A tip system for a wind turbine blade

several configurations of tip systems for a modular wind turbine blade and associated methods of manufacture are described.. .
Lm Wp Patent Holding A/s

Wind turbine assembly system and associated method

the present invention relates to a wind turbine assembly system which proposes an alternative to conventional cranes, having a main lifting structure configured to withstand the load of at least one tower section or at least one wind turbine component, and at least one secondary lifting structure configured to perform the lifting of the main lifting structure with respect to the wind turbine tower, in addition relating to a wind turbine assembly method according to the previous system, as well as the wind turbine assembled with the previous method.. .
Acciona Windpower, S.a.

Personnel safety shield and system

a safety system may include a shield for protecting or shielding personnel operating in a personnel working area from a hazard provided on a structure. The structure may be a wind turbine, the hazard may be a projecting flange of the wind turbine tower, and the personnel working area may be a ladder inside the wind turbine tower.
Inventus Holdings, Llc

Lifting device for rotor assembly and method thereof

the present invention relates to a lifting device and method for lifting and turning a rotor during the erection process of wind turbine structure. The lifting device comprises a base unit with mounting means adapted to be mounted to an outer surface of the hub.
Envision Energy (denmark) Aps

Ground station for airborne wind turbine

an airborne wind turbine (“awt”) may be used to facilitate conversion of kinetic energy to electrical energy. An awt may include an aerial vehicle that flies in a path to convert kinetic wind energy to electrical energy.
Google Inc.

Liquid-cooled electrical apparatus

an inductor 1 for connecting a wind turbine generator to the electricity grid is mounted within a housing 2, and the coils of the inductor 1 are cooled by means of cooling plates 3 located within the coils, and in which are formed tubular conduits. Coolant liquid is supplied to the conduits through supply pipes 7 which are connected to the conduits by means of connectors 8 mounted underneath the housing 2 , such that any coolant liquid which escapes from the connectors 8 falls under gravity into a drip tray 10 arranged below the housing 2.
Vestas Wind Systems A/s

Wind turbine system for generating electrical power

the apparatus includes a wind turbine system for the collection of wind energy and the conversion thereof through staged-compression into highly compressed gas. The highly compressed gas is routed to a central tank, and then expanded into a plurality of concentric ring tanks, each storing gas at successively lower pressures.

System and assembling a wind turbine

systems for assembling a wind turbine without the assistance of cranes. According to some implementations a system is provided that includes lifting systems having lifting platforms arranged peripherally around the tower.
Nabrawind Technologies Sl

Portable power generator

a portable generator includes: a case having a front, symmetrical air-foil shaped sidewalls, kamm tail rear and flat base; a wind turbine; a telescoping shaft hingedly connected to the case base for supporting the wind turbine, in a horizontal and a range of vertical positions for receiving wind without the case; an offset air entrance hole within the case front for directing ambient air towards the wind turbine when in the case; an elliptical, funnel-shaped channel extending from the air entrance hole towards the turbine blades capturing the wind from the air entrance hole and directing it towards the turbine blade assembly; an air escape hole within the case rear for directing air out of the case; ties for holding the pole in a vertical position; one or more batteries for supplying dc power to an ac inverter; an inverter dc for converting ac from the generator unit; a solar array for augmenting and supplying dc power to the batteries; the ac inverter to supply energy to ac electrical equipment; an electrical outlet connected to the inverter; and, a hinged somewhat rounded cover for the case that in horizontal position forms a water tight seal with the sidewalls for the case and in vertical position allows for redirection of the solar array. The cover is secured to the case via a locking hinge arrangement.

Wind turbine deceleration method and system

a wind turbine includes wind turbine blades, a wind turbine rotor coupled to the wind turbine blades, a wind turbine generator coupled to the wind turbine rotor, a wind turbine converter coupled to the wind turbine generator, a controllable brake comprising one or more sources of controllable rotor torque adjustment for providing a first level of torque adjustment, a discrete brake for more coarsely providing a second level of torque adjustment, and a controller programmed for responding to a deceleration event by determining a required torque adjustment for braking, determining a sequence of applying the controllable brake and the discrete brake for driving a combination of the first and second levels of torque adjustment towards the required torque adjustment, and providing control signals for decelerating the wind turbine.. .

Pre-cured composites for rotor blade components

the present disclosure is directed to pre-cured composites for use in manufacturing rotor blade components of a wind turbine. In one embodiment, the pre-cured composites are pultruded composites having a continuous base portion with a plurality of integral protrusions extending from the continuous base portion, and a fabric layer cured with the continuous base portion.
General Electric Company

System and manufacturing wind turbine rotor blades for simplified installation and removal

the present disclosure is directed to systems and methods for manufacturing a wind turbine rotor blade that can be easily lifted and lowered to and from a rotor installed atop a tower. The method includes providing a plurality of root inserts for a blade root of the blade and securing at least one cylindrical member to one of the root inserts such that the cylindrical member is substantially perpendicular with the root insert.
General Electric Company

Method and means for mounting wind turbines upon a column

a variable level, relatively mobile wind power system consists of turbines mounted upon an axis. As needed, the axis may be brought to the desired level upon a column and retracted to the ground for servicing.

Capacitors having engineered electrodes with very high energy density

an apparatus and associated method for an energy-storage device (e.g., a capacitor) having a plurality of electrically conducting electrodes including a first electrode and a second electrode separated by a non-electrically conducting region, and wherein the non-electrically conducting region further includes a non-uniform permittivity (k) value. In some embodiments, the method includes providing a substrate; fabricating a first electrode on the substrate; and fabricating a second electrode such that the second electrode is separated from the first electrode by a non-electrically conducting region, wherein the non-electrically conducting region has a non-uniform permittivity (k) value.
Granbluetech, L.l.c.

Method for installation of a power control module in a wind power unit tower and an aggregate component

the invention relates to a method for installation of a power control module in a tower for a wind turbine. The method includes, providing a power control module (101) and providing a tower section (201).
Vestas Wind Systems A/s

Determining a deflection of a rotor blade of a wind turbine

a method is provided for determining a deflection of a rotor blade of a wind turbine including the following steps: fixing at least one electrical conductor loop via fixing points to at least one surface of the rotor blade, wherein the at least one electrical conductor loop is arranged such that due to the deflection of the rotor blade an extension of the at least one conductor loop is forced between at least two of the fixing points, the extended electrical conductor loop keeps closed if the deflection of the rotor blade is below the defined threshold, the extended conductor loop opens if the deflection of the rotor blade is beyond the defined threshold. Further an arrangement, a sensor, a rotor blade and a wind turbine are also provided..
Siemens Aktiengesellschaft

Vertical and geographical placements of arrays of vertical-axis wind-turbines

multiple vertical-axis wind-turbines are aligned in a geometric array relative to a horizontal-axis wind-turbine. The vertical-axis wind-turbines are placed in close proximity to the horizontal axis wind turbine.
Wind Harvest International, Inc.

High frequency bi-directional ac power transmission

a method may involve transmitting power between a tethered aerial vehicle equipped with wind turbines for generating power and a ground station configured to interconnect the generated power to an electrical distribution network. The power may be transmitted using high voltage, high frequency ac electrical signals, and transformers at the ground station and the aerial vehicle can scale the ac voltage for use at the respective locations.
X Development Llc

Wind turbine with a speed regulator and a generator regulator

a wind turbine having a rotor, which has at least one rotor blade adjustable about its longitudinal axis via a pitch control, and a generator, driven by the rotor, having a speed regulator, which takes a control difference in the rotational speed and generates a control variable for the pitch control, and a generator regulator, which takes a power conductance and determines a rotational speed setpoint and a power setpoint, wherein a pilot control is provided that uses an inverse controlled system to determine a control variable for the pitch control, the inverse controlled system determining a power torque (mp) from the rotational speed setpoint and the power setpoint and also an acceleration torque (mb) from the change in the rotational speed setpoint over time and outputting the control variable for the pitch control as an output variable that provides pilot control for the output variable from the speed regulator.. .
Nordex Energy Gmbh

Vertical wind turbine

the vertical wind turbine is provided with a rotating vane housing mounted between an upper, cam disk and a lower, base disk, the base disk being mounted to a shaft. A plurality of turbine blades are pivotally mounted around the vane housing, each of the blades being pivotal between open and closed positions with respect to the housing.
King Fahd University Of Petroleum And Minerals

Noise reducer for a wind turbine blade

a noise reducing wind turbine blade is disclosed. The wind turbine blade includes a blade body having a leading edge, a trailing edge, a suction side, and a pressure side.
Siemens Aktiengesellschaft

A wind turbine blade

a wind turbine blade is described having a serrated trailing edge. Flow straightening vanes are provided on the serrations, to prevent a lateral or side flow over the edges of the serrations, which are preferably provided at incidence to the flow over the wind turbine blade.
Lw Wp Patent Holding A/s

Wind turbine rotor blade assembly with surface features

rotor blade assemblies for wind turbines are provided. A rotor blade assembly includes a rotor blade.
General Electric Company

Profilometry inspection spar caps of composition wind turbine blades

the present application thus provides a method of inspecting composite turbine blade spar caps during lay up. The method may include the steps of applying a layer to a mold, measuring a surface characteristic of the layer with a profilometer, and determining if the layer has an out of plane wave therein based on the measured surface characteristic..
General Electric Company

Tool for handling a long and heavy object

a tool for handling a long and heavy object, in particular a wind turbine rotor blade, includes a clamping unit which can be fixed to the rotor blade. The clamping unit has a first clamp and a second clamp spaced from the first clamp with respect to a longitudinal direction of the object.
Areva Wind Gmbh

Methods and computer-assisted spray foam fabrication

in exemplary implementations of this invention, a nozzle sprays foam, layer by layer, to fabricate a fabricated object according to a cad model, and a subtractive fabrication tool removes material from the fabricated object according to a cad model. The fabricated object comprises a mold or an interior form.
Massachusetts Institute Of Technology

Methods and computer-assisted spray foam fabrication

in exemplary implementations of this invention, a nozzle sprays foam, layer by layer, to fabricate a fabricated object according to a cad model, and a subtractive fabrication tool removes material from the fabricated object according to a cad model. The fabricated object comprises a mold or an interior form.
Massachusetts Institute Of Technology

Process to design and install wind towers by utilizing some of the existing drilling technologies

the present invention is an improved arrangement for a wind turbine system wherein the power generator unit is independently installed at ground level to minimize the vertical compressive load imposed on the poles. The wind turbine system is powered by an integrated hydraulic power unit comprising a hydraulic pump driving a hydraulic motor operationally coupled to the power generator at ground level.

Use of compressed air to generate energy using wind turbines

the present invention is an improved arrangement for a wind turbine system wherein the power generator unit is independently installed at ground level to minimize the vertical compressive load imposed on the poles. The wind turbine system is powered by an integrated air power unit comprising an air pump driving an air motor operationally coupled to the power generator at ground level.

Bird or bat detection and identification for wind turbine risk mitigation

an automated system for mitigating risk from a wind turbine includes a plurality of optical imaging sensors. A controller receives and analyzes images from the optical imaging sensors to automatically send a signal to curtail operation of the wind turbine to a predetermined risk mitigating level when the controller determines from images received from the optical imaging sensors that an airborne animal is at risk from the wind turbine,.
Identiflight, Llc

Tip extension assembly for a wind turbine rotor blade

the present disclosure is directed to a tip extension assembly for a rotor blade of a wind turbine. The tip extension assembly includes a tip extension having a body with a pressure side surface and a suction side surface.
General Electric Company

Ladder attachment system for a wind turbine

the present disclosure is directed to a ladder attachment system for securing a ladder within a tower of a wind turbine. The ladder has parallel legs and a plurality of rungs arranged perpendicularly between the parallel legs.
General Electric Company

A repairing an electric generator

the invention relates to a method for repairing an electric generator, preferably in a wind turbine generator (wtg), the electric generator (10) having a stator and a rotor (30) rotatably mounted relative to the stator. The method of repairing the electric generator provides a rotor connecting ring (40) with a first conductor assembly and a second conductor assembly in two different planes, each assembly with a plurality of conductive arc segments.
Vestas Wind Systems A/s

Wind turbine drip loop cable securement assembly

the present disclosure is directed to a wind turbine drip loop cable securement assembly. The assembly includes at least one flexible ring component and a plurality of flexible straps circumferentially mounted to the flexible ring component.
General Electric Company

State monitoring system

provided is a state monitoring system that monitors a state of an apparatus provided in a wind turbine, including a wireless measuring unit including a sensor provided to the apparatus, and a data collection device. The wireless measuring unit includes a memory storing measured data obtained from the sensor, and a wireless communication unit transmitting the measured data obtained from the sensor to the data collection device.
Ntn Corporation

Method and apparatus that generates electricity form a wind turbine equipped with self-cleaning photovoltaic panels

an apparatus that can optimize wind power without compromising solar photovoltaic power collection by doing so and yet provide self-cleaning of the solar photovoltaic panels of the collector. The panels rotate in unison with rotation of the wind turbine airfoils and arranged in a planar region that is substantially transverse to a circumferential region in which the airfoils rotate beneath the solar photovoltaic collector..

Sensor assembly for a wind turbine bearing and related system and method

a bearing for a wind turbine may generally include an outer race, an inner race and a plurality of roller elements positioned radially between the inner and outer races, with the roller elements including a first roller element and a second roller element. The bearing may also include a sensor assembly having a load sensor positioned between the first and second roller elements.
General Electric Company

Wind turbine with over-rating control

a method is disclosed for controlling a wind turbine generator to provide power above a rated level based upon operational atonal constraints. The wind turbine includes an over-rating controller that calculates an over-rating power demand in response to the values of one or more operating parameters, and communicates this demand to the generator.
Vestas Wind Systems A/s

Apparatus for changing the angle of inclination in wind turbines

a device for changing the angle of inclination in wind turbines. According to one aspect the device is formed by a connection part having a peripheral rolling ring on which three rolling supports are arranged.
Nabrawind Sl

Controlling a target system

for controlling a target system, e.g. A gas or wind turbine or another technical system, a pool of control policies is provided.
Siemens Aktiengesellschaft

Wind-turbine rotor blade and heating unit for a wind-turbine rotor blade

a wind turbine rotor blade with a heating unit for heating the rotor blade is provided. The heating unit has at least one optical waveguide as a heating element.
Wobben Properties Gmbh

Optimal wind farm operation

the present application is concerned with a flexible way of operating a wind farm with a plurality of degrading wind turbine components. According to the invention, maintenance scheduling and power production in the wind farm are handled concurrently in a single optimization step.
Abb Schweiz Ag

Bolted joint for a wind turbine blade

according to some implementations a bolted joint for modular blades is provided that comprises a single bolt that joins the inserts incorporated on the flange of the beam, screwing the two modules facing each other. A spacer is added to each bolt, and the bolts is then pre-tensioned by pulling, either mechanically separating the modules with a mechanical separator or thermally by applying heaters to the bolt and coolers to the spacer, or by torqueing the bolts.
Nabrawind Technologies Sl

Segmented wind turbine rotor blade with rod and tube joint connection

a blade segment for a wind turbine rotor blade may generally include a body shell terminating at a joint end. The body shell may include a pressure side and a suction side extending between a leading edge and a trailing edge.
General Electric Company

Method and permanent magnet attachment in an electromechanical machine

an apparatus and method for the installation and removal of permanent magnets in a permanent magnet electromechanical machine, for example a wind turbine power unit generator. A magnet holder is mounted on a magnet carrying structure such as a rotor.
Weg Electric Corp.

Wind turbine systems and air channels in vehicles for enhancing energy generation, cooling, and aerodynamics

air channels and wind turbines systems are provided for cooling vehicle parts and storing electrical energy in a vehicle battery. The vehicle may have a battery, a braking system, an air duct with wind turbines and a generator.
Toyota Motor Engineering & Manufacturing North America, Inc.

Wind turbine

the invention relates to a wind turbine (1) for converting kinetic energy from wind into electrical power, wherein said wind turbine (1) comprises: a rotary part (2, 3, 7) adapted to rotate around an axis of rotation (9) comprising at least one blade (2, 3) for catching the wind, a supporting structure (4, 10, 20) for supporting said rotary part (2, 3, 7) and for fastening said wind turbine (1), said rotary part (2, 3, 7) being rotably connected to said supporting structure (4) so as to allow rotation of the rotary part (2, 3, 7) with low friction to the supporting structure (4). The wind turbine is characterized in that at least one field coil (10, 20) is attached to or integrated into said supporting structure (4), said at least one field coil (10, 20) being adapted to be fed with a direct current (if) so as to create at least one magnetic field (b) with a field direction perpendicular to said axis of rotation (9), said rotary part (2, 3, 7) comprises at least one conduction wire or winding (7) that is attached to or integrated into said rotary part (2, 3, 7), said conduction wire or winding (7) passing said at least one magnetic field (b) to induce electric current (ii) in said conduction wire or winding, said supporting structure (4) further comprising a rotary electrical connection (6), being adapted to connect said at least one rotating conduction wire or winding (7) of the rotary part (2, 3, 7) to an electrical outlet (8) of said supporting structure..

System for installing a cable in a tower of a wind turbine and method therefor

a method for operating a turbine having a rotor including a hub and at least one blade rotatably arranged around its longitudinal axis at the hub, an induction generator having a stator and rotor coupled to the turbine shaft, a pitch drive system having an actuator, a control system, and a measuring device. The method includes: measuring the operational value of a component of the pitch drive system and adjusting the angle to the target pitch angle, wherein the wind turbine is operated according to at least two operational modes.
General Electric Company

Wind turbine rotor blade components formed from pultruded hybrid-resin fiber-reinforced composites

a rotor blade component for a wind turbine rotor blade may generally include an assembly of pre-formed pultruded products. Each pultruded product may include an interior pultruded portion formed from a first fiber-reinforced composite including a first plurality of fibers surrounded by a thermoset resin material and an exterior pultruded portion encapsulating the interior pultruded portion.
General Electric Company

Thermoplastic airflow modifying elements for wind turbine rotor blades

the present disclosure is directed to thermoplastic airflow modifying elements for a rotor blade for a wind turbine and methods of assembling same. The rotor blade may be constructed from at least one of a thermoset material or a thermoplastic material.
General Electric Company

Method for manufacturing blade components using pre-cured laminate materials

the present disclosure is directed to a method for manufacturing a blade component for a rotor blade of a wind turbine. The method includes arranging a fiber material in a mold of the blade component.
General Electric Company

Methods for modifying wind turbine blade molds

the present disclosure is directed methods for modifying molds of rotor blades of a wind turbine. In certain embodiments, the blade mold is constructed, at least in part, of a thermoplastic material optionally reinforced with a fiber material.
General Electric Company

Methods for manufacturing spar caps for wind turbine rotor blades using thermoplastic-based composite plates

in one aspect, a method for manufacturing a spar cap for a wind turbine rotor blade may generally include stacking a plurality of plates together to form a plate assembly, wherein each of the plates is formed from a fiber-reinforced composite including a plurality of fibers surrounded by a thermoplastic resin material. The method may also include positioning the plate assembly relative to a mold defining a mold surface, wherein the mold surface is shaped so as to correspond to at least one blade parameter of the wind turbine rotor blade.
General Electric Company

Wind turbine inspection

systems and methods of inspecting a wind turbine system are provided. In particular, a user device located proximate a wind turbine can obtain location data and component data associated with one or more components of the wind turbine.
General Electric Company

Cooling apparatus

a cooling device for cooling a cable assembly, containing an outer pipe, which is designed to accommodate the cable assembly in such a way that an intermediate space for accommodating a cooling water layer remains between the outer pipe and the cable assembly, a connecting element for creating a water-tight connection between the outer pipe and the cable assembly, and a pressure controller for controlling the water pressure in the cooling water layer, is provided. A cable device is also provided, including an electric cable assembly, and a cooling device.
Siemens Aktiengesellschaft

Method of calibrating load measurement apparatus, load measurement system of wind turbine blade, and wind turbine

a method of calibrating a load measurement apparatus for measuring a load on a wind turbine blade on the basis of strain data based on strain of a wind turbine blade includes: a strain-data acquisition step of, during a startup of a wind turbine, obtaining a plurality of the strain data for each of a plurality of conditions among which at least one of an azimuth angle or a pitch angle of the wind turbine blade is different from one another; a theoretical load-value acquisition step of obtaining a theoretical load value applied to the wind turbine blade due to own weight of the wind turbine blade, for each of the plurality of conditions, on the basis of the azimuth angle and the pitch angle of the wind turbine blade in each of the plurality of conditions; and a calibration-parameter calculation step of calculating a calibration parameter representing a relationship between the strain data obtained by the load measurement apparatus and the load on the wind turbine blade, on the basis of a correlation between each of the strain data and the theoretical load value.. .
Mitsubishi Heavy Industries, Ltd.

Wind turbine with a brake dust collector

a wind turbine including a generator with a stator and a rotor, a cooling arrangement, a wind turbine brake including a brake disk and a caliper with brake pads is provided. An air duct with a filter is located near the brake pads of the caliper.
Siemens Aktiengesellschaft

Wind turbine condition monitoring method and system

the present application includes wind turbine condition monitoring method and system. The method comprises: acquiring historical scada data, and wind turbine reports corresponding to the historical scada data; training an overall model for overall diagnosing the wind turbine, and training different individual models for analyzing different components of the wind turbine based on the historical scada data and the corresponding wind turbine report, by establishing relationship between the historical scada data and the wind turbine report; acquiring real time scada data, inputting the real time scada data to the trained overall model, obtaining the health condition of the wind turbine from the trained overall model, and performing individual diagnosing step if the trained overall model determines wind turbine as defective status; inputting the real time scada data to the trained individual model corresponding to the defective component, and obtaining the fault details of the defective component from the trained individual model corresponding to the defective component..
Abb Schweiz Ag

Modular coupling of a wind turbine gearbox to a generator

an assembly for use in a drive-train of a wind turbine having a transmission, a generator and a module. The module includes a shaft or hub, at least one bearing and a support structure.
Zf Wind Power Antwerpen N.v.

Wind turbine station and tower with vertical storage tanks

the invention relates to a wind turbine station and tower as well as wind farms using them, wherein each wind turbine station comprises a tower consisting of preferably two or more vertically oriented compressed air pressure storage tanks or vessels. The tanks or vessels are preferably comprised of vertically oriented elongated steel pipes that are extended parallel to each other and spaced apart with a steel web between them for reinforcing the strength and rigidity and moment resistance of the tower to resist lateral wind forces that may be applied to the top of the tower.

Current limit calculation for wind turbine control

systems and methods for determining current limits used in controlling wind turbine systems are provided. An example wind turbine controller identifies a largest current magnitude out of a first current magnitude, a second current magnitude, and a third current magnitude of a three phase power bus.
General Electric Company

Control a wind turbine

the invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the rotor hub. The method comprises determining a wind speed and providing a normal pitch mode of operation to control the output power of the wind turbine, where the pitch mode of operation comprises pitch reference values in dependence of the wind speed.
Vestas Wind Systems A/s

Method for black starting wind turbine, wind farm, and restoring wind farm and wind turbine, wind farm using the same

a method for black starting a wind turbine and a wind farm following islanding operation, a method for restoring the wind farm following the islanding operation, and the wind turbine and wind farm. The wind turbine comprises auxiliary equipment, a generator, a converter electrically connectable to the generator, and an energy storage system, the generator is electrically connectable to the auxiliary equipment via the converter, the energy storage system is electrically connectable to the auxiliary equipment.
Abb Schweiz Ag

Wind turbine power generating apparatus and connecting the same

a wind turbine power generating apparatus includes a wind turbine rotor including at least one blade; a pitch drive part for changing a pitch angle of the at least one blade; a generator configured to be driven by rotational energy of the wind turbine rotor; a circuit breaker for switching a connection state of the generator with respect to a utility grid; and a controller for controlling the wind turbine power generating apparatus. The controller includes a pitch control part configured to control the pitch drive part in a constant rotation-speed control mode for maintaining a rotation speed of the wind turbine rotor at a target rotation speed, before connection of the generator; a connection-condition determination part configured to determine whether a connection determination condition is satisfied; and a connection-command generation part configured to provide the circuit breaker with a connection command to connect the generator to the utility grid..
Mitsubishi Heavy Industries, Ltd.

Turbine blade

a spar for use in a blade of a wind turbine comprises a plurality of rods having polygonal cross-sections bundled together into a bundle having a first plurality of rods disposed along a widthwise extent of the bundle and a second plurality of rods disposed along a heightwise extent of the bundle and means to secure rods within the plurality of rods to one another.. .
Korecarbon Llc

Methods for joining shear clips in wind turbine rotor blades

rotor blades and methods for joining shear clips in wind turbine rotor blades are provided. A method includes positioning the shear clip adjacent a shear web of the rotor blade, the shear clip including a thermoplastic resin, the shear web including a thermoplastic resin.
General Electric Company

Methods for joining surface features to wind turbine rotor blades

methods for joining surface features to wind turbine rotor blades are provided. A method includes providing the surface feature after forming of the rotor blade.
General Electric Company

Compressed air energy storage system

a hydraulic energy flow conversion device is for use in association with a compressed air storage unit and an input device. The input device is for inputting mechanical energy.
Isocurrent Energy Incorporated

Reinforced bearing of a wind turbine

a bearing of a wind turbine is provided. The bearing includes an annular stationary raceway rigidly connected to a first component of the wind turbine, and an annular rotating raceway rigidly connected to a second component of the wind turbine.
Siemens Aktiengesellschaft

Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations

a wind-driven power generating system with a hybrid wind turbine mounted on a floating platform that heels relative to horizontal in the presence of a prevailing wind. The hybrid turbine has a turbine rotor with at least two rotor blades, each mounted to a turbine shaft by at least one strut, and the system is configured so that the shaft forms a predetermined non-zero operating heel angle relative to vertical in the presence of a prevailing wind at a predetermined velocity.
Continuum Dynamics, Inc.

Support structure of a wind turbine

a support structure of a wind turbine and a method of manufacturing the support structure is provided. A support structure of a wind turbine is disclosed, whereby the support structure includes a first end to connect to a rotor of a wind turbine, and a second end to be connected to a tower of a wind turbine.
Siemens Aktiengesellschaft

Wind turbine blade removal and installation system and method

an apparatus for removing and installing a blade for a wind turbine is provided, comprising a first set of cable guides mounted within the nacelle, and a second set of cable guides positioned on an exterior surface of the rotor hub. An upper pulley block is suspended from a first hub flange and a second hub flange, wherein the upper pulley block is positioned above a third hub flange in a position for accepting the blade.
Barnhart Crane And Rigging Co.

Apparatus and power generation using compressed air

apparatuses, methods, and systems are disclosed for power generation using compressed air. One apparatus includes a wind turbine and an air compressor coupled to the wind turbine.
Utah Valley University Foundation, Inc

Methods of operating a set of wind turbines and systems

methods of operating a set of wind turbines for providing a total power demand to a grid according to a grid requirement are provided. A first group of wind turbines is configured to generate an individual active power based on an individual set-point.
Alstom Renewable Technologies

Vehicle mounted electrical generator

a display which can be mounted on the outside of a vehicle includes a generator to generate electricity to power accessories such as a light for illuminating the display. The display may comprise a windsock which is mounted on a support ring surrounding a central hub in which the turbine mounted.
Nemo Ventures, L.l.c.

Method for controlling a wind turbine

a wind turbine is disclosed. The wind turbine includes comprising an inflatable portion comprising one or more blades and a device for rotatably driving the inflatable portion at a predetermined rate for a predetermined time..
Deka Products Limited Partnership

Apparatuses and methods for balancing a wind turbine assembly

a computer-implemented method for a wind turbine balancing apparatus of a wind turbine assembly is described. In one embodiment, a turbine shaft is configured to transmit mechanical power.

Hub for a wind turbine and a fabricating the hub

a hub for a wind turbine and a method for fabricating the hub are disclosed. The hub comprises a continuous shell forming a hollow body with a main shaft flange adapted to connect the hub to a main shaft, and one or more blade flanges, each blade flange being adapted to connect the hub to a wind turbine blade.
Vestas Wind Systems A/s

Wind blade for wind turbine

a wind blade for a wind turbine, comprising: a curved panel (1), the middle portion of which forms a concave structure, a side of said panel (1) being provided with a resistance portion (12), and the side of said panel (1) having the resistance portion (12) being provided with a plurality of jet stream holes (6); a cover plate (2) fixedly connected to the edge of the curved panel (1) and partially covering the concave structure in the middle portion of the curved panel (1); and, a connection member (5) for mounting the blade on a central rotating device. Said wind blade is structurally simple, and is well-adapted for safe operation and power generation at both high and low wind speeds..
Shenzhen Bangzhong Wind Power Generation Technology Co. Ltd.

Composite layers for bonding components of a wind turbine rotor blade

the present disclosure is directed to a method for bonding composite blade components of a rotor blade of a wind turbine. The method includes providing a first blade component being constructed of a first composite material.
General Electric Company

Maintenance access to blade bearing

an improved access to the bearing of a wind turbine rotor blade is provided. A rotor of a wind turbine, includes a rotor blade and a hub, whereby the rotor blade includes a root end and the root end is attached to a rotor blade bearing, and the rotor blade bearing is attached to the hub.
Siemens Aktiengesellschaft

Method for re-indexing a pitch bearing of a wind turbine

a method is provided for re-indexing a pitch bearing configured with a rotor blade of a wind turbine. A hoisting system is anchored within the rotor hub and includes a plurality of support elements connected to a drive system.
General Electric Company

Electrical cabinet wall for an electrical cabinet of a wind turbine

the present disclosure is directed to an electrical cabinet for an electrical assembly for a wind turbine. The electrical cabinet has one or more walls that define an internal volume having one or more electrical components configured therein.
General Electric Company

System and mitigating ice throw from a wind turbine rotor blade

the present disclosure is directed to a system and method for mitigating ice throw from one or more rotor blades of a wind turbine during operation. The method includes monitoring one or more ice-related parameters of the wind turbine.
General Electric Company

Conduit assembly for a lightning protection cable of a wind turbine rotor blade

the present disclosure is directed to a conduit assembly for securing a lightning protection cable of a wind turbine lightning protection system within an internal cavity of a wind turbine rotor blade. The conduit assembly includes one or more conduit members arranged together to define an open passageway configured to receive at least a portion of the lightning protection cable along a length thereof.
General Electric Company

Shear web for a wind turbine rotor blade

the present subject matter is directed to a rotor blade assembly for a wind turbine having an improved shear web configuration. The rotor blade assembly includes an upper shell member having a spar cap configured on an internal surface thereof and a lower shell member having a spar cap configured on an internal surface thereof.
General Electric Company

Pultruded components for a shear web of a wind turbine rotor blade

the present subject matter is directed to a rotor blade assembly for a wind turbine having a pultruded component at an interface of a shear web and a spar cap. More specifically, the rotor blade assembly includes an upper shell member having an upper spar cap configured on an internal surface thereof and a lower shell member having a lower spar cap configured on an internal surface thereof.
General Electric Company

Thermoplastic pultruded stiffeners for locally reinforcing a wind turbine rotor blade

the present disclosure is directed to a rotor blade for a wind turbine having improved stiffness. The rotor blade includes a main blade structure, at least one thermoplastic blade segment configured with the main blade structure and defining the outer surface of the rotor blade, at least one spar cap configured at a first location on an internal surface of the at least one blade segment, and at least one pultruded stiffener configured at a second location on the internal surface of the at least one blade segment.
General Electric Company

Modular wind turbine rotor blade constructed of multiple resin systems

the present disclosure is directed to a method of manufacturing a modular rotor blade for a wind turbine. The method includes providing a plurality of resin systems for manufacturing a plurality of blade components for the modular rotor blade.
General Electric Company

Rotor blades having thermoplastic components and methods of assembling same

the present disclosure is directed to a modular rotor blade constructed of thermoset and/or thermoplastic materials for a wind turbine and methods of assembling same. The rotor blade includes a pre-formed main blade structure constructed, at least in part, from a thermoset material.
General Electric Company

Erosion resistant leading edge cap for a wind turbine rotor blade

a wind turbine rotor blade may generally include a blade root, a blade tip opposite the blade root and a body shell extending between the blade root and the blade tip. The body shell may include a pressure side and a suction side extending between a leading edge and a trailing edge and may define an outer shell surface.
General Electric Company

Rotor blade components formed from dissimilar thermoplastics and methods of assembling same

a rotor blade for a wind turbine may generally include a first blade component formed from a first fiber-reinforced composite including a first thermoplastic resin material and a second blade component configured to be coupled to the first blade component at a joint interface. The second blade component may be formed from a second fiber-reinforced composite including a second thermoplastic resin material, wherein the second thermoplastic resin material differs from the first thermoplastic resin material.
General Electric Company

Rotor blade components having varying fiber density regions

a rotor blade for a wind turbine may generally include a first blade component formed from a first fiber-reinforced composite including a first thermoplastic resin material and a second blade component configured to be coupled to the first blade component at a joint interface. The second blade component may be formed from a second fiber-reinforced composite including a second thermoplastic resin material.
General Electric Company

Methods for repairing wind turbine rotor blades

the present disclosure is directed a method for repairing a rotor blade of a wind turbine. More specifically, in certain embodiments, the rotor blade may be constructed, at least in part, of a thermoplastic material reinforced with at least one fiber material.
General Electric Company

Tower for a wind turbine with buttresses

a tower for a wind turbine, the tower including a plurality of tower segments including a first tower segment and at least a second tower segment, a plurality of buttresses, and an attachment piece. The tower segments are arranged one upon the other from the base of the tower to the top of the tower.
Siemens Aktiengesellschaft

Rotor blades having thermoplastic components and methods of assembling same

the present disclosure is directed to a method of assembling a modular rotor blade of a wind turbine. The method includes identifying a main blade structure, constructed at least in part, from at least one of a thermoset or a thermoplastic material.
General Electric Company

Improvements in or relating to voltage source conventors

a wind farm side voltage source converter comprises a dc terminal for connection to a dc transmission link, an ac terminal for connection to a wind farm that includes at least one wind turbine, and a main controller. The main controller is configured to modify an active power demand (pdemand) of the voltage source converter which is received from a higher level controller by introducing an artificial inertia factor and/or in response to a measured dc voltage (vdc_msr) at the dc terminal..
General Electric Technology Gmbh

Exterior cleaning machine in wind turbine-towers

exterior cleaning machine in wind turbine-towers, which is coupled to lifting means (7) in a parallel direction in relation to the outer surface of a mast (1) of a wind turbine, and wherein said machine comprises at least one flexible roller (2a, 2b) configured to come in contact with part of the surface of a mast (1) of a wind turbine, a plurality of magnets (3) facing part of the outer surface of the mast (1) and configured to attract the machine with regard to said mast (1) via magnetic phenomena; at least one tank (4a, 4b) configured to receive a cleaning product; a plurality of rolling means (5) between the structure and said mast (1); and remote control means (6) of the lifting motion of said machine associated with lifting means (7).. .
Gamesa Innovation & Technology, S.l.

Method and diagnosing blades of wind turbine

a method for diagnosing blades of a wind turbine is provided. The method includes steps of acquiring, via a microphone, an operation sound of the wind turbine when the wind turbine is under operation; transforming the operation sound into a time-frequency spectrum; integrating the time-frequency spectrum over time to generate a marginal spectrum; determining whether any blade of the wind turbine is damaged according to the marginal spectrum and a reference curve..
National Taiwan University

Floating hybrid composite wind turbine platform and tower system with suspended mass

a wind turbine platform configured to float in a body of water and support a wind turbine thereon includes a buoyant hull platform. A wind turbine tower is centrally mounted on the hull platform and a wind turbine is mounted to the wind turbine tower.
University Of Maine System Board Of Trustees

Yaw adjustment of a wind turbine

an adjusting device for adjusting a yaw position of a nacelle of a wind turbine, comprising a circumferential holed flange provided with drilled holes, and at least one adjusting means, having a gripping portion for gripping on the holed flange, a fastening portion for fastening to an anchorage point of the wind turbine, and a linear drive for exerting a linear movement between the gripping portion and the fastening portion, wherein the holed flange is fixedly connected to the nacelle, and the anchorage point is fixedly connected to stationary part of the wind turbine, in particular a wind turbine tower, or vice versa, and the nacelle is mounted so as to be rotatable relative to this stationary part of the wind turbine, such that the holed flange and the anchorage point can also execute a rotational movement relative to each other, such that a linear movement exerted between the gripping portion and the fastening portion by the linear drive effects a rotational movement between the holed flange and the anchorage point, and thereby effects a yaw adjustment of the nacelle, wherein the gripping portion has at least one movable fixing pin for engaging in respectively one of the drilled holes of the holed flange, in order thereby to fix the gripping portion to the holed flange in a releasable manner.. .
Wobben Properties Gmbh

Vertical axis wind turbine with configurable airfoils

a vertical axis wind turbine includes: a central axis that extends in a substantially vertical direction; a plurality of configurable airfoils disposed about the central axis, the plurality of configurable airfoils physically coupled to rotate together about the central axis; an angle adjustment mechanism configured to adjust an angle formed between a configurable airfoil and a radius that extends from the central axis as the configurable airfoil rotates about the central axis; and a profile adjustment mechanism that is configured to adjust a profile of the configurable airfoil as the configurable airfoil rotates about the central axis.. .

Wind turbine blade with tripping device and method thereof

a wind turbine and a method of reducing extreme loads and fatigue loads on a wind turbine by using a passively activated tripping device arranged on the pressure side of the wind turbine blade. The tripping device is configured to interrupt the passing airflow, when activated, and transform the airflow into a turbulent airflow.
Envision Energy (jiangsu) Co. Ltd.

A wind turbine blade and an associated manufacturing method

a manufacturing method is described for a wind turbine blade, where layers of fibre material are laid up in a mould to form a portion of the blade structure. The fibre layers are infused with a resin which is subsequently cured to form the hardened blade structure.
Lm Wp Patent Holding A/s

System and manufacturing a wind turbine blade

a system and method for manufacturing at least a portion of a wind turbine blade is described. The invention relates to a method for ensuring a minimum bond line height between wind turbine blade components, through the use of adhesive spacer elements.
Lm Wp Patent Holding A/s

Reinforced main bearing of a wind turbine

a main bearing of a wind turbine, wherein the main bearing is reinforced by a reinforcement element which includes a cavity to reduce a torsional deformation of the main bearing, is provided. A wind turbine for generating electricity including such a main bearing is also provided..
Siemens Aktiengesellschaft

Nacelle construction for a wind turbine

a heli-hoist pad that is incorporated into a wind turbine nacelle in a manner that is optimized for helicopter approach and positioning of the heli-hoist pad, such as by being located within a recess in an upper surface of the wind turbine nacelle. Heat exchangers may also be positioned within the free flow of wind outside of a nacelle in manners that provide for serviceability while also allowing for optimal positioning of a heli-hoist pad..
Mhi Vestas Offshore Wind A/s

Wind turbine rotor blade having a spark gap

a wind turbine rotor blade is provided. The wind turbine blade has a lightning receptor, a first electric line, and a potential equalization arrangement having a first electrode, which is connected to the lightning receptor, and a second electrode, which is connected to the first electric line, a spark gap being formed between the two electrodes, mutually facing sides of the two electrodes forming an air flow channel, which is arranged such that the ambient air that is incident when the wind turbine rotor blade is in operation flows through it..
Nordex Energy Gmbh

Wind turbine rotor blade having a spark gap

a wind turbine rotor blade is provided. The wind turbine rotor blade has a lightning receptor, a first electrical line and a potential equalization arrangement which has a first electrode, which is connected to the lightning receptor, and a second electrode, which is connected to the first electrical line, a spark gap being formed between the two electrodes.
Nordex Energy Gmbh

Dc output wind turbine with power dissipation

a wind turbine is disclosed having a generator and rectifier and structured to provide direct current power that in one form is medium voltage direct current (mvdc). The wind turbine includes a crowbar circuit arranged to protect from a condition such as an overvoltage.
Abb Technology Ltd.

A vertical axis wind turbine with self-orientating blades

the invention is a wind turbine that is part of a system for utilizing the energy of wind to produce electrical energy. The turbine is a vertical axis wind turbine that is characterized by the design of its blades.

Wind turbine blade bushing system

a wind turbine blade bushing system for arrangement in a root end of a wind turbine blade is described. The wind turbine blade bushing system comprises a threaded element for retaining a mounting bolt for a wind turbine blade, the threaded element being formed from a first material; and an anchor element for arrangement at the root end of the wind turbine, wherein the anchor element acts to at least partly retain the threaded element in the wind turbine blade, the anchor element being formed from a second material.
Lm Wp Patent Holding A/s

Noise reduction means for a rotor blade of a wind turbine

a rotor blade of a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section, and a trailing edge section with a trailing edge.
Siemens Aktiengesellschaft

Method and arrangement for removing and lifting a blade pitch slewing ring bearing of a wind turbine

a method and an arrangement for removing and lifting of a blade pitch slewing ring bearing of a wind turbine after a blade from a rotor hub of the wind turbine is removed, is disclosed. The arrangement and method enables the lowering and lifting of the wind turbine without the need of large and heavy cranes so that the replacement can be carried out cost effectively.
Windcare India Pvt Ltd

Method and system for de-erection and re-erection of a blade of a wind turbine

a system for de-erection and re-erection of a blade of a wind turbine, the system comprising at least one first pulley, at least one second pulley, at least one third pulley, a receptacle disposed over a substantial length of the blade, a lifting line passing over the at least one first pulley, the at least one second pulley, the at least one third pulley and attached back to the at least one second pulley, at least one load bearing mechanism configured for pulling and releasing of the lifting line to enable vertical motion of the receptacle disposed over the blade, a load supporting mechanism connected to an operative bottom portion of the blade and configured to support the blade during de-erection and re-erection thereof and at least one holding mechanism attached to the at least one third pulley, the at least one holding mechanism adapted to hold the receptacle.. .
Windcare India Pvt Ltd

Foundation for a wind turbine

the present invention provides a foundation for a wind turbine. To reduce set-up time and to allow complete alignment of the platform which carries the base flange of the tower construction, the invention provides a foundation with a cage structure having an upper stress distribution flange connected by a plurality of tensioned anchor bolts to a lower flange.
Vestas Wind Systems A/s

A wind turbine blade manufacturing system and method

there is described a system and apparatus for the manufacture of a wind turbine blade where portions of a blade, preferably blade half shells, are formed in suitable moulds, before transferral to a post-moulding station where post-moulding operations can be performed. The blade shells are formed in the mould to have integrated flanges which facilitate easy handling of the blade shells during subsequent manufacturing operations.
Lm Wp Patent Holding A/s

Method, controller, and computer program product for controlling a target system

for controlling a target system, e.g. A gas or wind turbine or another system, operational data of a plurality of source systems are used.
Siemens Aktiengesellschaft

Wind turbine with floating foundation and position regulating control system and method thereof

the present invention relates to a wind turbine structure comprising a wind turbine tower with a nacelle arranged on the top to which a rotor hub with one or more rotatable mounted wind turbine blades are mounted which form a rotor plane. A floating foundation is mounted to the bottom of the wind turbine tower and the pitch and/or yaw system are used to regulate the position of the wind turbine structure.
Envision Energy (denmark) Aps

Wind turbine tower assembly

a structural tower for a wind turbine assembly, includes along at least a base section: a plurality of peripheral sections extending peripherally of a central section. Each includes a convex-shaped wall having two longitudinal side edges and an inner framework connected to a respective one of the convex-shaped walls and extending inwardly therein.
Marmen Inc.

Method and tool for assembling tower elements

tooling and a method of using the tooling for aligning flanges of a wind turbine tower segment of a tower section to correct deformities that might otherwise prevent fasteners from passing through apertures of adjacent flanges to gather the segments into tower sections.. .
Vestas Wind Systems A/s

Alignment tool, the connection of wind turbine tower segments

the application relates to an alignment tool (200) for the alignment of a pair of vertical flanges for the connection of the longitudinal edges of adjacent segments of a cylindrical section of a wind turbine tower, and to a system and method utilising one or more such alignment tools (200). The alignment tool comprises mounting means (202) for connecting the alignment tool to a portion of a vertical flange of a tower segment; and a longitudinal alignment head (204) for aligning the vertical flange with an op posing vertical flange of an adjacent tower segment.
Vestas Wind Systems A/s

A manufacturing a part of a wind turbine blade

a method for manufacturing a part for a wind turbine blade, and in particular a part of a shear web for a wind turbine blade, is described. The method comprises pultruding the part, wherein an in-line shaping of the part is performed, to provide a part having a cross-sectional profile which varies in the longitudinal length of the part.
Lm Wp Patent Holding A/s

Siemens Aktiengesellschaft

. .

Magnet configurations for magnetic levitation of wind turbines and other apparatus

a wind turbine having one or more magnets for reducing friction between the turbine support and a turbine rotor. The reduction of friction between the turbine rotor and the turbine support allows for an increase in energy production and scale of the wind turbines.
Hover Energy Llc

Lightning transmission device between the rotor and the nacelle in a wind turbine

a lightning transmission device between the rotor and the nacelle in a wind turbine, which comprises: a first electricity conductor platen, where one of its ends is separated at a distance with respect to a metal strip located at a root of each blade; a second electricity conductor platen, where one of the ends is separated a distance with respect to a gutter element; an electrical conductor between the first and second platen; an electrical insulator coupled to said first and second platens; which is also coupled to the hub of the wind turbine; and a relative displacement unit between the first and second platen, the unit configured to ensure a predefined distance between the end of the first platen and the metal strip; and between the end of the second platen and the gutter element.. .
Gamesa Innovation & Technology, S. L.

Drive system of a wind turbine

a drive system of a wind turbine includes a transmission gear configured to be connected to a wind rotor shaft, the transmission gear having a first planetary gear set and a second planetary gear set, and a generator downstream of the transmission gear. The transmission gear and the generator are mounted in sliding bearings..
Siemens Aktiengesellschaft

Self orienting hanging windmill

a hanging windmill has a wind turbine and a generator mounted on an airframe supported by a hanger at the center of gravity of the assembly. A stop is provided for preventing the tipping of the airframe on the hanger beyond a point where the blades of the wind turbine strike the hanger..

Wind turbine control using secondary controller to adjust wind speed and/or direction input values

a system for controlling a wind turbine may include at least one sensor configured to provide at least one of a wind speed signal or a wind direction signal and a turbine controller configured to control the operation of the wind turbine. The system may also include a secondary controller inserted between the sensor(s) and the turbine controller.
General Electric Company

Single-frame impeller of wind turbine generator set

the present invention relates to the technical field of wind power generating equipment, in particular to a single-frame impeller of a wind turbine generator set. Influenced by the structure, materials and the like, a horizontal-shaft wind turbine generator set in the prior art has problems of low wind energy utilization rate, relatively high design requirements, relatively large volume and weight, difficulty in maintenance and repairing, likeliness in over-speed flying, and the like.

Power generating apparatus

power generating apparatus (10) comprises a housing (14) and a wind turbine (12) within the housing. The wind turbine comprises a plurality of rotatable turbine blades (66).
Whoosh 2013 Limited

Nacelle of a wind turbine

a nacelle of a wind turbine, the wind turbine having a generator for generating electrical energy from wind, and the nacelle comprising a mainframe for carrying the generator on a tower, a carrier module for accommodating items of electrical control equipment, and a nacelle casing for protecting the carrier module and the mainframe against effects of weather, the carrier module and/or the nacelle casing being connected to the mainframe by means of decoupling means, such that there exists thereby an elastically damped connection to the mainframe.. .
Wobben Properties Gmbh

Renewable energy marine hydrokinetic or wind turbine

three controls, three variable gear assemblies, a hatch, and a variable torque and power generator (vt&pg), may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed. A three variable spur/helical gear assembly of sun and planetary gear sets is a mechanical three variable control and referred to herein as a transgear™ gear assembly, simply transgear.
Differential Dynamics Corporation

Tower segment handling method and apparatus

this application relates to tower segment handling methods and apparatus, and in particular to methods and apparatus for handling segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another.
Vestas Wind Systems A/s

Tower segment handling method and apparatus

this application relates to tower segment handling methods and apparatus, and in particular to methods and apparatus for handling segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another.
Vestas Wind Systems A/s

Beam and pile anchor foundation for towers

a foundation system for a tower, such as a wind turbine, includes a central hub assembly, a plurality of post-tensioned concrete beams, and an anchoring system associated with each beam. In use the foundation system is arranged so that the bottom surfaces of the concrete beams bear on soil and the anchoring is disposed within the soil.
Rute Foundation Systems, Inc.

In-line processing of pre-formed pultruded products for use within a wind turbine rotor blade

a method for in-line processing of pre-formed pultruded products may generally include transporting a pre-formed pultruded product in a processing direction along a travel path, wherein the product includes a combination of fibers and resin and wherein the product extends lengthwise in the processing direction and defines an initial width in a widthwise direction. The method may also include roughening an outer surface of the pre-formed pultruded product as the product is being transported in the processing direction along the travel path and cutting the pre-formed pultruded product lengthwise in the processing direction to form first and second pultruded plates as the product is being transported in the processing direction along the travel path, wherein each of the first and second pultruded plates defines a width in the widthwise direction that is less than the initial width of the product..
General Electric Company

Control of reactive power in a wind power plant

the invention relates to a method for controlling injection and absorption of reactive power in a wind power plant (wpp). In addition to wind turbine generators (wtg), the wind power plant comprises reactive power regulating devices, such as msu and statcom devices.
Vestas Wind Systems A/s

Reconfiguration of the reactive power loop of a wind power plant

the present invention relates a method of controlling a wind power plant connected to an electrical grid, the wind power plant comprises a power plant controller (350), a plurality of wind turbine generators (1) and a statcom (230), with a statcom controller, comprises: controlling the plurality of wind turbine generators in a first control mode, with the power plant controller controlling a reactive power production from each of the plurality of wind turbine generators according to a closed loop control scheme, and controlling in a first control mode with a closed loop control scheme a reactive power production from the statcom according to a first setpoint dispatched from the power plant controller, and controlling the reactive power production from the statcom in a second control mode from the statcom controller according to an electrical measurement in the grid, and controlling the plurality of wind turbine generators in a second control mode, with the power plant controller controlling a reactive power production from the plurality of wind turbine generators, according to a feedforward control or a close loop control, based on a second setpoint from the statcom controller, and switching between the first control mode and the second control mode when receiving at least one trigger signal. The invention also relates to a wind power plant according to the method..
Vestas Wind Systems A/s

A wind power plant with improved rise time

the present invention relates to a method for controlling a wind power plant connected to an electrical grid, the wind power plant comprising at least one wind turbine generator and a power plant controller, the power plant controller comprising a signal controller for controlling an electrical parameter with a gain (kgs), the method comprising, measuring at least one electrical parameter in the electrical grid, determining an internal signal value at least partially based on the at least one electrical parameter, comparing the internal signal value with a saturation value, and if the internal signal value exceed the saturation value, increasing the gain (kgs) of the signal controller to a first gain value, in order to decrease a rise time for a slope for the electrical-parameter in the electrical grid. The invention also relates to a power plant controller arranged to decrease a rise time for a voltage slope for a voltage parameter in the electrical grid..
Vestas Wind Systems A/s

Data acquisition system for condition-based maintenance

generally, a system and method consistent with the present disclosure may provide a relatively low cost, relatively robust data acquisition and analysis system useful for condition-based maintenance. The system may be useful for condition-based maintenance in industrial applications, e.g., of equipment and/or machinery.
Nrg Systems, Inc.

Securing and/or tensioning of a planet shaft

a member for axially fixing and/or tensioning a planetary bolt, in particular a planetary bolt of the planetary gear stage of the transmission of a wind turbine. Based on the idea of providing a screw joint for axially fixing and/or tensioning a planetary bolt in the immediate vicinity of a section of the planetary bolt which has a shoulder for the axial fixing and/or tensioning of planetary bearings.
Zf Wind Power Antwerpen N.v.

Emergency system

emergency system for providing an emergency exit from an upper level at a wind turbine (1) comprising at least a wind turbine tower (2) and a nacelle (3), said emergency system (10) comprising —an escape unit (12), which in a normal condition is releasably located at a position at the nacelle of the wind turbine, —said escape unit (12) comprising lowering means, —said escape unit being adapted for accommodating at least one person, —said escape unit comprising releasing means for providing a release from said position at said upper level and for allowing said escape unit (12) to be lowered downwards by means of said lowering means to a lower level of said wind turbine, and —said emergency system (10) further comprising initial guiding means and tower guide means for facilitating guidance of said escape unit (12) in relation to the wind turbine tower (2).. .
Ha-pa Holding A/s

System for reducing maintenance frequency for bolts and nuts of wind turbine

a system for reducing maintenance frequency for bolts and nuts of a wind turbine comprises a plurality of fastening units, a pc data collector, a server and a terminal. The fastening unit has a bolt sequentially penetrates through a lower spacer, a sensor, an upper spacer, a wind turbine parts, a threaded ring, and a washer, and then a nut is engaged and tightly fastened on the bolt.

Basic grid supervision of a wind power plant

the present invention relates to a method for supervision of an electrical measurement in a wind power plant, with a plurality of wind turbine generators, the method comprises, a) measuring a measurement of an electrical parameter in the wind power plant, b) determining a difference between the measurement and a reference value, c) in case the difference is greater than a threshold value, incrementing an event counter, d) in case the event counter is incremented, raising a first warning flag. The invention also relates to a power plant controller arranged to supervise a wind power plant according to the method; the wind power plant comprises a plurality of wind turbine generators..
Vestas Wind Systems A/s

Method for feeding in electrical energy by means of a wind turbine

a method for feeding electric energy into an electric power supply network by means of a wind turbine, wherein the wind turbine generates electric power from wind having a variable wind speed by means of an aerodynamic rotor and a generator and feeds it at least partially into the electric power supply network and/or uses it at least partially for supplying electric devices of the wind turbine, wherein the generated electric real power is set as function of an ambient temperature and/or wherein the rotor has a variable rotational speed and the rotational speed is set as a function of the ambient temperature.. .
Wobben Properties Gmbh

Operating wind turbines

methods are provided of operating first and second wind turbines in a situation wherein presence of the first wind turbine affects the wind so that a wake is generated that affects the second wind turbine. These methods include determining parameters of the wind at first wind turbine and at second wind turbine.
Alstom Renewable Technologies

Upwind wind turbine

an upwind wind turbine includes: a hub provided so as to be rotatable around a rotation axis; a plurality of blades configured to rotate together with the hub; a tilting mechanism configured to couple the hub and the blades such that the blades are tiltable relative to a rotational plane around the rotation axis; a driving device configured to drive the tilting mechanism to switch between a standing state where the blades stand and a tilted state where the blades are tilted; and a fixing/supporting mechanism provided independently from the tilting mechanism and the driving device and configured to be switched between a locked state where the blades in the standing state are prevented from tilting and an unlocked state where the blades are allowed to tilt to become the tilted state.. .
Kawasaki Jukogyo Kabushiki Kaisha

Power-ramping pitch feed-forward

embodiments of the present disclosure generally relate to apparatus and methods for preventing power dips associated with power ramping in wind turbines. One embodiment of the present disclosure provides a method for stabilizing power output in a wind turbine, which includes tracking a rate of change in an external reference, such as an external power reference or external torque reference, computing a feed-forward pitch angle adjustment according to the rate of change in the external power reference, and sending the feed-forward pitch angle adjustment to the wind turbine to adjust a pitch angle of rotor blades simultaneously with adjusting power output according to the external reference..
Vestas Wind Systems A/s

Rotor blade for a wind turbine

a rotor blade for a wind turbine comprising a blade root to be fastened to a rotor hub, a blade tip opposite the blade root, a rotor blade longitudinal axis extending from the blade root to the blade tip, an inner rotor blade part on the near side of the blade hub, especially encompassing the blade root, and an outer blade part on the far side of the blade hub, especially encompassing the blade tip. The inner rotor blade part and the outer rotor blade part are joined to one another in a joining zone which forms a bulge in the rotor blade..
Wobben Properties Gmbh

Rotor blade root assembly for a wind turbine

the present disclosure is directed to a root assembly for a rotor blade of a wind turbine and methods of manufacturing same. The root assembly includes a blade root section having an inner sidewall surface and an outer sidewall surface separated by a radial gap, a plurality of root inserts spaced circumferentially within the radial gap, and a plurality of spacers configured between one or more of the root inserts.
General Electric Company

A nacelle for a wind turbine generator including lifting apparatus

a nacelle for a wind turbine generator comprises a crane articulated on a base fixed to said nacelle. The crane includes a cantilevered telescopic boom, a principal winch with a lifting line and respective azimuth and elevation drive units for moving said boom in azimuth and in elevation relative to said nacelle.
Vestas Wind Systems A/s

Rotor blade root assembly for a wind turbine

the present disclosure is directed to a root assembly for a rotor blade of a wind turbine and methods of manufacturing same. The root assembly includes a blade root section having an inner sidewall surface and an outer sidewall surface separated by a radial gap, a plurality of root inserts spaced circumferentially within the radial gap, and a plurality of spacers configured between one or more of the root inserts.
General Electric Company

Corrosion protecting layer system, corrosion protected bearing component and protecting a bearing component against corrosion

a corrosion-protecting layer system, e.g., for a bearing component used in a wind turbine, includes a base layer that contains polyurethane, zinc, and vinylphosphonic acid or silane. An intermediate layer is formed on the base layer and contains polyurethane and zinc.
Aktiebolaget Skf

A manufacturing a shear web using a pre-formed web foot flange

a method of manufacturing a wind turbine blade component in form of a shear web is described. The method comprising the steps of: a) providing a pre-manufactured shear web body having a first side and a second side as well as a first end and a second end; b) providing a first pre-formed web foot flange comprising a fibre-reinforcement material; c) arranging a first fibre layer from the first pre-formed web foot flange and to a part of the first side of the shear web body; d) arranging a second fibre layer from the first pre-formed web foot flange and to a part of the second side of the shear web body; e) supplying a resin to said first fibre layer and second fibre layer simultaneous with or subsequent to steps c) and d); and f) allowing the resin to cure so as to form the shear web..
Lm Wp Patent Holding A/s

Device and the automated processing of workpieces

an apparatus for automated machining, such as grinding, cutting and/or deburring, of workpieces, in particular of cast components, e.g., of wind turbines. For this purpose, the apparatus comprises a motor spindle for machining the workpiece, the motor spindle having a tool interface for receiving a tool for the machining operation.
Wobben Properties Gmbh

Vestas Wind Systems A/s

. .

Wind turbine generators with power backup system

auxiliary power is required by each generator to orient the rotor blades to face the wind direction and also for other control and safety functions. This auxiliary power is normally extracted from the power generated within each wind turbine generator.

Systems and methods for improved wind power generation

a wind power generation system includes one or both of a memory or storage device storing one or more processor-executable executable routines, and one or more processors configured to execute the one or more executable routines which, when executed, cause acts to be performed. The acts include receiving weather data, wind turbine system data, or a combination thereof; transforming the weather data, the wind turbine system data, or the combination thereof, into a data subset, wherein the data subset comprises a first time period data; selecting one or more wind power system models from a plurality of models; transforming the one or more wind power system models into one or more trained models at least partially based on the data subset; and executing the one or more trained models to derive a forecast, wherein the forecast comprises a predicted electrical power production for the wind power system..
General Electric Company

Condition monitoring system and condition monitoring method

a wind turbine includes vibration sensors for detecting conditions of apparatuses in the wind turbine. Each of detection outputs of the vibration sensors is transmitted to an information processing device.

Wind turbine having a fiber winding

a wind turbine comprising a tower and a nacelle, wherein a rotor having at least one rotor blade is disposed on the nacelle, and the rotor executes a rotary motion when the wind turbine is in operation and the rotary motion drives a generator within the nacelle, via a shaft, wherein disposed on the tower of the wind turbine there is a fiber winding, which wraps around a vertical tower axis of the tower of the wind turbine and which is configured to damp a vibration of the tower.. .
Wobben Properties Gmbh

Blade and strut of wind turbine for vertical-axis wind power generator

a wind turbine for a wind power generator includes: a center shaft arranged in a vertical direction; a plurality of horizontal arms attached in a radial manner to the center shaft; and a plurality of blades each arranged on an outer end of each of the plurality of horizontal arms so as to stand in an upright position, the plurality of blades each having a streamlined shape, in horizontal cross-section, including a 45±10% front side and a rear side, of which the rear side defines a convex arc-shaped outer-side surface and a concave arc-shaped center-shaft-side surface in a continuously closed manner, and a blade thickness across the convex arc-shaped outer-side surface and the concave arc-shaped center-shaft-side surface decreases gradually from a full dimension, in a region from a center-shaft-side point of inflection in blade thickness to a rear end of each of the plurality of blades.. .

Method for attaching a toothed rear edge to a blade rear edge of a rotor blade

a method for applying a serrated rear edge to a blade rear edge of a rotor blade of a wind turbine that has a pressure side and a suction side. The method comprises the steps: disposing the serrated rear edge, with an attaching portion, on a surface of the blade rear edge, and attaching the serrated rear edge, in the region of the attaching portion, to the rotor blade by means of adhesive, the serrated rear edge being disposed on the suction side and being additionally fixed by application of an overlapping material strip to the pressure side, and the material strip being disposed on the pressure side and on the serrated rear edge such that it overlaps a transition between the blade rear edge and the serrated rear edge, or the serrated rear edge being disposed on the pressure side and additionally fixed by application of an overlapping material strip to the suction side, and the material strip being disposed on the suction side and on the serrated rear edge such that it overlaps a transition between the blade rear edge and the serrated rear edge..
Wobben Properties Gmbh

Leading edge flap

a fluid interface device, such as an airfoil assembly, can include a device structure and at least one movable band oriented such that the band moves in a direction of fluid flow. The at least one movable band can be supported on the device structure such that an outer surface of the movable band is exposed along the device structure and is capable of movement relative thereto such that a relative velocity can be maintained between the outer surface and the device structure.

Systems, methods, and devices including modular, fixed and transportable structures incorporating solar and wind generation technologies for production of electricity

disclosed are systems, methods, and devices related to fixed and transportable structures and vehicles utilizing the integration of solar and wind technologies for generation of electricity. The system generates electricity using solar panels (and/or solar thermal units) and wind turbines, stores and converts electricity, and can be located in various locations either as fixed or portable embodiments including on land, on water, underwater, air and space and may also be housed in a structure to provide electricity for various facilities and uses..

Hybrid energy system for general applications

the hybrid energy system for onshore and for offshore applications to include buildings infrastructure, and vessels respectively an assortment one or more arrays of integrated piezoelectric devices, wind turbine array and solar panels characterized in that they are to produce renewable energy for on demand use and for battery bank storage. Accordingly the onshore application includes a kinetic energy turbine farm, and also offshore methods for kinetic energy turbine farms, mega buoys and mega vessels to supply extra electric energy to other vessels and to shunt net power to utility grid companies, and mega-barges produce net power in onboard giant battery bank containers to rent by shipping to utility consignment locations coastally..

System and ground based inspection of wind turbine blades

a ground based wind turbine blade inspection system and method consists of a thermal imaging camera configured to detect propagating defects by acquiring thermal imaging data from a wind turbine blade when it is substantially at thermal equilibrium with respect to surrounding air and analyzing the thermal imaging data with a processor to identify thermal effects associated with latent defects caused by internal friction due to cyclic gravitational stresses and wind loads during normal turbine operation. The system permits latent defects to be identified using a ground-based in situ inspection before they become visually apparent, which allows repairs to be made economically while the blade is in place..
Digital Wind Systems, Inc.

System and assembling tower sections of a wind turbine lattice tower structure

in one aspect, a method for assembling a tower section of a lattice tower structure for a wind turbine on a tower assembly fixture may generally include installing a first trolley onto a first fixture arm of the fixture and installing a second trolley onto a second fixture arm of the fixture. In addition, the method may include securing a first support leg of the tower section to the first trolley, securing a second support leg of the tower section to the second trolley and coupling at least one secondary support member between the first and seconds support legs..
General Electric Company

Multi-sided ventilation assembly for wind turbine tower access door

a wind turbine tower includes a door access opening in a down tower area of the tower. A hinged door panel covers the door access opening, with a ventilation opening defined through the door panel.
General Electric Company

Operating a wind turbine being connected to a utility grid both via a hvdc power connection and via an umbilical ac cable with a network bridge controller performing a power and a voltage control

a method is provided for controlling the operation of a wind turbine includes (a) receiving an active power reference signal; (b) determining, based on the active power reference signal and an active power feedback signal, a first voltage control signal and a power controller frequency signal; (c) receiving a power reference signal; (d) determining, based on the power reference signal and the power feedback signal, a power offset frequency signal; (e) determining, based on the power controller frequency signal, a second voltage control signal; (f) determining, based on the power offset frequency signal, an angle signal indicative for an actual angle of a rotating dq reference frame; and (g) controlling the operation of a power converter based on the first voltage control signal, the second voltage control signal, and the angle signal.. .
Siemens Aktiengesellschaft

Operating a wind turbine being connected to a utility grid solely via an umbilical ac cable with a network bridge controller performing a power and a voltage control

a method for controlling the operation of a wind turbine is provided. The method includes receiving, by means of a power controller, an active power reference signal and an active power feedback signal; determining, by means of the power controller and based on the active power reference signal and the active power feedback signal, a first voltage control signal and a power controller frequency signal; determining, by means of a frequency droop gain unit and based on the power controller frequency signal, a second voltage control signal; determining, by means of a theta integrator unit and based on the power controller frequency signal, an actual angle signal being indicative for an actual angle between a rotating dq reference frame and a stationary abc reference frame; and controlling operation of a network bridge based on the first voltage control signal, the second voltage control signal, and the actual angle signal..
Siemens Aktiengesellschaft

Operating a wind turbine being connected to a utility grid solely via a hvdc power connection with a network bridge controller performing a power and a voltage control

a method for controlling the operation of a wind turbine is provided. The method includes (a) receiving an active power reference signal) and an active power feedback signal; (b) determining, based on the active power reference signal and the active power feedback signal, a first voltage control signal and a power controller frequency signal; (c) determining, based on the power controller frequency signal, a second voltage control signal; (d) determining, based on the frequency reference signal, a frequency controller frequency signal; (e) determining, based on the power controller frequency signal and the frequency controller frequency signal, an actual angle signal being indicative for an actual angle of a rotating dq reference frame; and (f) controlling the operation of a power converter of the wind turbine based on the first voltage control signal, the second voltage control signal, and the actual angle signal..
Siemens Aktiengesellschaft

Wind turbine

the wind generator includes a support part, a housing connected to an upper portion of the support part, the housing having an inner space, a blade part connected to one side of the housing, the blade part, an electricity generating part seated in the inner space of the housing, a flywheel, and a tail part. The flywheel includes a shaft rotating together with the blade part, a rotor coupled to the shaft, the rotor including at least one permanent magnet along an outer circumferential surface thereof, at least one coil part disposed outside in a radial direction of the rotor and around which a trigger coil is wound, the at least one coil generating magnetic fields when current is supplied to the trigger coil, and a circuit part supplying pulse-type current to trigger coil when the permanent magnet passes through a center of the trigger coil..
Nurielecom Co., Ltd.

Wind park with a feed-forward control system in the power regulator

a wind park comprising at least two wind turbines that produce electrical power by means of a wind rotor and a generator and delivers this to an accumulating network, and comprising a park master that is configured to control said wind turbines and has a power regulator whose input is supplied with a target power signal and, at whose output, power control signals are emitted for the wind turbines, said power regulator comprising a feed-forward control module that imposes a value for the target power onto the output of said power regulator by means of a multiplication element.. .
Senvion Gmbh

Methods and systems for detecting sensor fault modes

a method of detecting a fault mode of a sensor is provided. The sensor may be, for example, a bending moment sensor and may sense a bending moment of a blade on a wind turbine generator (wtg).
Vestas Wind Systems A/s

Wind turbine operation based on a frequency of an ac output voltage signal provided by a power converter of the wind turbine

a method for controlling the operation of a wind turbine which includes a mechanical drive train, an electric generator being mechanically connected to the drive train, and a power converter being electrically connected to the generator is provided. The method comprises (a) determining a frequency of an ac output voltage signal provided by the power converter; (b) recognizing, whether there has been a modification of the determined frequency with respect to a previously determined frequency, which modification is larger than a given threshold; (c) if the modification of the determined frequency is larger than the given threshold, changing a power reference signal for the wind turbine; (d) providing the changed power reference signal to a controller of the wind turbine; and (e) controlling the operation of the wind turbine on the basis of the changed power reference signal..
Siemens Aktiengesellschaft

Wind energy conversion devices

a wind turbine for harvesting energy from both horizontal and vertical wind currents having an open frame structure and a central passage through the structure with at least three wind energy harvesting generally vertically disposed and rotatably mounted blades positioned about the central passage and at least three wind energy harvesting generally horizontal blades projecting radially from the central vertical axis of the device. The open frame structure includes a unique rod and cable central structure offset from the periphery of the frame.

Wind power generator

wind power generator (wpg) comprising a stator, rotor with a shaft connectable to wind turbine and a stationary superconducting coil for magnetizing the wind power generator rotor, the wpg stator comprising a multi-phase winding for producing electricity. The wpg is a synchronous generator, and the superconducting coil comprises end portions arranged to be magnetized with opposing polarities by a superconducting coil, the rotor comprises poles extending in the surface of the rotor in the direction of the shaft of the generator, the poles arranged to be magnetized using the superconducting coil, each rotor pole extends inwardly at one end of the pole such that the inwardly extended end is arranged in the vicinity of an end portion of the superconducting coil for magnetizing the rotor pole and the rotor poles comprises pole shoes formed to provide sinusoidally varying air gap flux in the air gap between stator and rotor..
Abb Technology Ag

Installation for transmitting electrical power

an installation for transmitting electrical power between a first and a second alternating voltage network. A self-commutated converter can be connected to the second alternating voltage network, and is connected to a unidirectional rectifier by way of a direct voltage connection.
Siemens Aktiengesellschaft

Hydrogen oxidation and generation over carbon films

an electrode comprises an acid treated, cathodically cycled carbon-comprising film or body. The carbon consists of single walled nanotubes (swnts), pyrolytic graphite, microcrystalline graphitic, any carbon that consists of more than 99% sp2 hybridized carbons, or any combination thereof.
University Of Florida Research

Anti-oscillation securing wind turbine blades against oscillations

a tool for reducing vibrations in wind turbine blades at standstill includes an elongate sleeve formed of a net-like material for fitting over the blades, wherein the sleeve is formed with at least one protruding structure extending along at least a part of the length of the sleeve having an undulating form, and which is arranged so that when the sleeve is fitted on a blade the protruding structure or structures lie at the leading and/or trailing edge of the blade. A method for securing wind turbine blades against oscillations is also disclosed..
Vestas Wind Systems A/s

Control of a group of wind turbines

methods and systems for reducing an output power of a group of wind turbines are provided. A measure of life usage by at least one component of each of a plurality of the turbines is determined, and is compared to a threshold value for life usage for the component.
Vestas Wind Systems A/s

Pitch assembly for a wind turbine rotor blade

the present disclosure is directed to a pitch assembly for coupling a rotor blade to a hub of a wind turbine. In one embodiment, the pitch assembly includes a first pitch bearing having a first outer race and a first inner race rotatable relative to the first outer race via a first set of rolling elements, a second pitch bearing having a second outer race and a second inner race rotatable relative to the second outer race via a second set of rolling elements, and at least one spacer configured axially between and contacting the first and second pitch bearings.
General Electric Company

Corrugated pre-cured laminate plates for use within wind turbine rotor blades

a pre-cured laminate plate for use within a component of a wind turbine rotor blade may generally include a plate body extending in a thickness direction between a first side and a second side and in a widthwise direction between a first end and a second end. The plate body may define a plate thickness between the first and second sides.
General Electric Company

Spar cap for a wind turbine rotor blade formed from pre-cured laminate plates of varying thicknesses

a spar cap for a rotor blade of a wind turbine may generally include an assembly of pre-cured laminate plates stacked on one top of the other, with the assembly including an outermost pre-cured plate, an innermost pre-cured plate positioned opposite the outermost pre-cured plate and a plurality of intermediate pre-cured plates stacked directly between the outermost and innermost pre-cured plates. The outermost pre-cured plate may be configured to be positioned adjacent to an inner surface of a body shell of the rotor blade.
General Electric Company

System and in-situ resurfacing of a wind turbine main rotor shaft

a method is provided for in-situ resurfacing of a main rotor shaft of a wind turbine, wherein in an operational state, the main rotor shaft is coupled at a first end to a rotor hub and at the opposite second end to a gearbox or directly to a generator within a nacelle. The method includes uncoupling the rotor shaft from the gearbox or generator so as to expose an end face of the second end of the rotor shaft.
General Electric Company

Ring insert for a wind turbine rotor blade

the present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having a blade root section and a rigid ring insert.
General Electric Company

Wind turbine blade part manufactured in two steps

a method of manufacturing a portion of a wind turbine blade is described. The method comprising the steps of: laying up a primary fibre material in a mould; infusing said primary fibre material with a primary resin; substantially curing said primary resin in said primary fibre material to form a cured blade element; laying up a secondary fibre material on top of at least a portion of said cured blade element; infusing said secondary fibre material with a secondary resin different to said primary resin, wherein said secondary resin has a higher strength level than said primary resin; and curing said secondary resin in said secondary fibre material to form an integrated reinforced section on said cured blade element..
Lm Wp Patent Holdings A/s