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Wind Turbine patents

      

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

SALE: 440+ Wind Turbine-related patent PDFs



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


new patent

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

new patent

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

new patent

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.. .

new patent

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.

new patent

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

new patent

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

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

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.



Wind Turbine topics:
  • Wind Turbine
  • Rotor Blade
  • Process Control
  • High Speed
  • Radial Flow
  • Rotor Shaft
  • Rotor Blades
  • 3d Printing
  • Degrees Of Freedom
  • Rotary Actuator
  • Hydraulic Rotary Actuator
  • Shaft Assembly
  • Transverse
  • Generators
  • High Altitude


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