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Wind Turbine patents

      

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

Method for producing a stator of a generator of a wind turbine, and form-wound coil, winding structure and stator
A method for producing a stator having a form-wound coil for use in a generator of a gearless wind power installation is provided. Circumferentially adjacent form-wound coils are inserted into slots of a stator in succession, where a predetermined number of the first form-wound coils to be inserted are being-inserted only partially into the slots or are positioned in front of the slots and are only fully inserted into the corresponding slots together with a predetermined number of the form-wound coils to be inserted last.
Wobben Properties Gmbh


Support element, in particular stator support element and/or rotor support element, system of support elements, generator support, generator, generator support system, nacelle of a wind turbine, wind turbine and assembling a generator support system
A support element for a support of a ring generator, in particular a stator support element for a stator support of a ring generator, and/or a rotor support element for a rotor support of a ring generator, wherein, to form the support, a number of support elements are assembled over a generator surface and which support is designed with an outer-circumferential supporting ring for the attachment of a winding and with an inner-circumferential supporting shoulder, in particular for linking up with a pin for connection to a bed plate. It is provided that the support element has: a leg, preferably a single leg in the form of a segment of a circle, which is assigned to a sector of an area of the generator surface and is designed for the assembly of the supporting ring, the leg being provided, in particular integrally, with the supporting shoulder that extends over part of the inner circumference, for attachment to a fully circumferential supporting flange, in particular the fully circumferential supporting flange being provided for linking up with a pin for connection to a bed plate, the supporting shoulder having a first fitting element and the supporting flange having a second fitting element, the first and second fitting elements being made to match one another, in particular as a female part and a male part..
Wobben Properties Gmbh


Capacitors having engineered electrodes with very high energy density and associated method
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.


Stand-alone direct current power system and method
Various implementations described herein are directed to systems, apparatuses and methods for operating stand-alone power systems. The systems may include power generators (e.g., photovoltaic generators and/or wind turbines), storage devices (e.g., batteries and/or flywheels), power modules (e.g., power converters) and loads.
Solaredge Technologies Ltd.


Handling device for a wind turbine rotor blade having a moldable support pad
A handling device for a rotor blade of a wind turbine e.g. That can be used for lifting, lowering, transporting, or storing the rotor blade includes at least one cradle for supporting the rotor blade and a moldable support pad secured to the cradle.
General Electric Company


Vertical axis wind turbine
A vertical axis turbine is disclosed, having a vertically oriented rotor shaft, a plurality of radially extended arms rotatably mounted on the rotor shaft, and a chassis at the distal end of each. For each chassis, an upper blade set is on an upper portion, having upper blade panels interconnected pivotally by upper guide links, and a lower blade set is on a lower portion, having lower blade panels interconnected pivotally by lower guide links.

Frequency regulation using wind turbine generators
Disclosed are a method and a control arrangement for frequency regulation of an electrical grid operatively coupled with at least one wind turbine generator. The method includes operating the wind turbine generator to consume electrical power from the electrical grid.
Vestas Wind Systems A/s


Wind turbine tower attachment
Devices, systems, and methods are directed to mounting an auxiliary component to a tower based at least in part on a force distribution in which a normal force is greater than a shear force exerted by the auxiliary component on a shell of the tower such that the auxiliary component may be held in place relative to the tower without penetrating the shell of the tower. Thus, as compared to mounting techniques requiring penetration of the shell of the tower, this force distribution along the shell of the tower may facilitate mounting the auxiliary component to the tower with little to no impact on cost and/or structural requirements of the tower.
Keystone Tower Systems, Inc.


Modular offshore wind turbine foundation and modular substructure with suction caissons
The present invention relates to an offshore wind turbine support system and method of installation, where the support system is comprised of two structures, an upper frame lattice structure, and a lower foundation structure that has a plurality of supports embedded in the sea floor, with sleeves of varying length protruding from the supports, such that the top of each sleeve in each foundation structure is about at the same distance below sea level as the top of each sleeve in all other foundation structures of the system.. .

Power converter for doubly fed induction generator wind turbine systems
Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor.
General Electric Company


Wind turbine and cooling device for a wind turbine

There is provided a wind turbine comprising a tower which has a wall, a cooling device having an air inlet unit and an air outlet unit which are provided in the lower region of the tower. The air inlet unit and the air outlet unit each have an outer portion, a central portion and a shutter unit.
Wobben Properties Gmbh

System and determining torque on a wind turbine shaft

The present disclosure is directed to a system for determining a torque exerted on a shaft of a wind turbine. The system includes a gearbox coupled to the shaft.
General Electric Company

Installing blades in a wind turbine and wind turbine lifting systems

An apparatus for lifting a wind turbine blade to a rotor hub includes a blade holder configured to receive and support the wind turbine blade. A connection element is configured on the blade holder and is adapted to attach directly to a mounting surface of a wind turbine rotor hub.
Ge Renewable Technologies Wind B.v.

Power converter for full conversion wind turbine systems

Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor.
General Electric Company

Method for predicting and controlling loads on a wind turbine and a wind turbine thereof

The present invention relates to a control method and a wind turbine configured to determine a load signal of at least one component of the wind turbine, and to calculate a damage rate based on this load signal. The control method calculates and monitors the damage rate in real-time, wherein the damage rate is normalised by using a first function defining a first transition phase.
Envision Energy (denmark) Aps

Wind turbine control over-ride

A method is provided of controlling a wind turbine. The method comprises over-rating the wind turbine above the wind turbine's rated power in response to a control signal and applying an over-rating control algorithm that restricts the amount of additional power produced by over-rating the wind turbine, due to the control signal, based upon one or more turbine parameters.
Vestas Wind Systems A/s

Methods and systems for generating wind turbine control schedules

Methods and systems for generating wind turbine control schedules a method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more turbine components, based on measured wind turbine site and/or operating data; applying an optimisation function that varies an initial control schedule to determine an optimised control schedule by varying the trade off between energy capture and fatigue life consumed by the turbine or the one or more turbine components until an optimised control schedule is determined, the optimisation including: estimating future fatigue lifetime consumed by the turbine or turbine component over the duration of the varied control schedule based on the current remaining fatigue lifetime and the varied control schedule; and constraining the optimisation of the control schedule according to one or more input constraints; wherein the optimisation further includes varying an initial value for a wind turbine lifetime, and varying an initial value for the number of component replacements, for one or more components, to be performed over the course of the schedule to determine a combination of the number of component replacements for one or more turbine components and a target minimum wind turbine lifetime.. .
Vestas Wind Systems A/s

Wind turbine control based on forecasts

A method of controlling a wind turbine is provided. Data is obtained that identifies, based on forecast data, one or more future periods of time during which it would be desirable to over-rate the wind turbine, and measures of the fatigue life consumed by one or more turbine components are determined.
Vestas Wind Systems A/s

Methods for controlling wind turbine with thrust control twist compensation

A method is provided for operation of a wind turbine having rotor blades attached to a hub, wherein a controller compensates for torsionally induced blade twist. The method includes operating the wind turbine according to a rated power output curve and maximum design thrust value, and periodically or continuously detecting for induced torsional twist in the rotor blades.
General Electric Company

Method of reducing loads acting on a wind turbine yaw system

Method of reducing loads acting on a wind turbine yaw system in a wind turbine comprising a nacelle (2), a rotor which comprises at least one rotor blade (3) with a pitch control system and further comprising a yaw system that comprises the steps of detecting a yaw misalignment (α), enabling a yaw maneuver and performing a pitch control in order to reduce a yaw moment (mz) acting on the wind turbine once the yaw misalignment (α) is detected and prior to enabling the yaw maneuver. Thus, when a yaw movement to reduce the yaw misalignment is commanded, the yaw moment (mz) due to aerodynamic forces has been reduced by means of the pitch control and undesired yaw movements are prevented..
Acciona Windpower, S.a.

Method for manufacturing a wind turbine rotor blade root section with pultruded rods and associated wind turbine blade

A method for manufacturing a root section of a wind turbine blade includes assembling a mold having an inner cylinder segment, an outer cylinder segment, and a bottom flange, wherein a radial space is defined between the inner and outer cylinders. Root hub connectors are attached circumferentially around the bottom flange so that the root hub connectors extend axially into the radial space.
General Electric Company

Lattice tower

This invention relates to lattice tower for actuate under high load conditions, more particularly to lattice towers utilized for wind turbines and other applications comprising three metallic legs arranged in a triangular configuration around a vertical axis of the lattice tower, wherein each metallic leg has a closed cross-section profile, a distance between the center of metallic legs in a bottom portion of the tower is greater than 4 meters, an angle of inclination of a central longitudinal axis of each metallic leg in relation to the vertical axis of the tower is between −1.7 degree and +1.7 degrees, and the height of the lattice tower is greater than 60 meters, a plurality of bracing members and auxiliary bracing members and a support platform disposed at a top portion of the tower.. .
Seccional Brasil S/a

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.

Method of making a wind turbine blade

A method of making a wind turbine blade (10) having a shell (14, 16) of varying thickness. The method comprises providing a blade mould (30), the mould defining first (32) and second zones (34); arranging layers of fibrous material (42) for forming a first part of the shell having a first thickness in the first zone (32) of the mould, arranging layers of fibrous material for forming a second part of the shell having a second thickness greater than the first thickness in the second zone (34) of the mould, and supplying resin (41) to the mould (30).
Vestas Wind Systems A/s

Method for producing a wind turbine rotor blade, and wind turbine rotor blade

A method of producing a wind turbine rotor blade. For that purpose metal particles, metal powder or metal chips are mixed into a matrix used to produce the rotor blade.
Wobben Properties Gmbh

Method for examining the raceway of a large roller bearing

A method for examining the raceway of a large roller bearing in a wind turbine, in which a raceway of the large roller bearing is measured using an ultrasonic measuring unit mounted on the bearing housing, wherein the ultrasonic measuring unit detects two edges of the raceway and the relative position and/or formation thereof in relation to one another is measured.. .
Nordex Energy Gmbh

Cable routing for wind turbine system having multiple rotors

The present invention relates to a wind turbine system comprising a plurality of wind turbines mounted to a common support structure (4) by a support arm arrangement (10) comprising a mount portion (12)and at least one arm (13) extending from said mount portion and carrying a respective wind turbine (6). Said support arm arrangement (10) is capable of yawing around said support structure (4); and said wind turbine system comprises an improved arrangement for cable guiding in this connection..
Vestas Wind Systems A/s

Method for making an equipotential bonding connection on a wind turbine rotor blade and wind turbine rotor blade having an equipotential bonding connection

The invention is directed to a method for making an equipotential bonding connection between two components of a lightning protection arrangement of a wind turbine rotor blade. The method includes providing a wind turbine rotor blade having two rotor blade half shells having respective connection and fastening units connected to corresponding ones of the two components of the lightning protection arrangement.
Nordex Energy Gmbh

Connection and fastening unit for a lightning receptor for integration into a wind turbine rotor blade

A connection and fastening unit for components of a lightning protection system, the connection and fastening unit being realized for the purpose of being integrated in a wind turbine rotor blade and for being connected to the components of the lightning protection system, wherein the connection and fastening unit includes a cavity which can be closed in an airtight manner and in which a connector for connection to at least one of the components of the lightning protection system are arranged.. .
Nordex Energy Gmbh

Method of measuring load on a wind turbine

A method of measuring load on a wind turbine, and a wind turbine for such load measuring, are disclosed. The wind turbine comprises at least one rotor blade and at least one load sensor associated with the rotor blade.
Vestas Wind Systems A/s

Blade load sensing system for a wind turbine

A sensor system for a wind turbine blade, the system comprising: a blade load sensor providing a load measurement; a processing unit interfaced with the blade load sensor and configured to provide a corrected load parameter as an output. The processing unit includes: an axial force estimation module that determines an estimated axial force on the wind turbine blade in a direction along the length of the blade; and a load calculation module that 10 determines the corrected load parameter based on the estimated axial force and the load measurement of the blade load sensor..
Vestas Wind Systems A/s

Multi-source renewable power generation system

A multi-source power generation system to generate electricity by utilizing a combination of renewable energy sources such as wind, solar and wave energy is disclosed. The power generating system comprises a frame including a float body and a cylindrical body integral to the float body is submerged below the surface of sea water.

System and remotely resetting a faulted wind turbine

In one aspect, a computer-implemented method for remotely resetting faulted wind turbines may generally include receiving fault data associated with a turbine fault that has occurred for a faulted wind turbine, analyzing one or more reset conditions associated with the turbine fault; determining whether the faulted wind turbine is remotely resettable based on the one or more reset conditions associated with the turbine fault and if the turbine fault is remotely resettable, transmitting a reset notification to a client device authorized to receive notifications for the wind turbine, wherein the reset notification indicates that the faulted wind turbine can be remotely reset.. .
General Electric Company

Methods and systems for generating wind turbine control schedules

A method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more turbine components, based on measured wind turbine site and/or operating data; applying an optimisation function that varies an initial control schedule to determine an optimised control schedule by varying the trade off between energy capture and fatigue life consumed by the turbine or the one or more turbine components until an optimised control schedule is determined, the optimisation including: estimating future fatigue lifetime consumed by the turbine or turbine component over the duration of the varied control schedule based on the current remaining fatigue lifetime and the varied control schedule; and constraining the optimisation of the control schedule according to one or more input constraints; wherein the input constraints include a target minimum wind turbine lifetime and the optimisation further includes varying an initial value for the number of component replacements, for one or more components, to be performed over the course of the schedule to determine a maximum number of component replacements.. .
Vestas Wind Systems A/s

Methods and systems for generating wind turbine control schedules

A method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: receiving input indicative of the maximum number of times that each of one or more turbine components are to be replaced over the remaining lifetime of the turbine; determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more of the turbine components, based on measured wind turbine site and/or operating data; and varying a parameter of an initial predefined control schedule that specifies how the turbine maximum power level varies over time. The varying is performed by: (i) adjusting the parameter of the initial predefined control schedule; (ii) estimating the future fatigue lifetime consumed by the wind turbine, or one or more turbine components, over the duration of the varied control schedule, based upon the varied control schedule and accounting for the replacements of the one or more turbine components; and (iii) repeating steps (i) and (ii) until the estimated future fatigue lifetime consumed by the wind turbine or each of the one or more turbine components is sufficient to allow a target minimum wind turbine life to be reached..
Vestas Wind Systems A/s

Initialisation of wind turbine control functions

A method for controlling a wind turbine is provided. The wind turbine is a turbine of the type that is operated to perform a control function that controls the amount of power produced based upon measures of fatigue life consumption of one or more turbine components.
Vestas Wind Systems A/s

Method for controlling a wind turbine with increased safety

A wind turbine with at least one rotor blade and at least one pith drive for turning the at least one rotor blade, the wind turbine comprising a controller which analyses the wind turbine if a first error situation or a second error situation occurs and wherein the controller is adapted to react to the first error situation in absence of a second error situation with a first error procedure, to a second error situation in absence of the first error situation with a second error procedure, and to an error situation where the first error and the second error occur at the same time with a third error procedure that is different to the first error procedure and to the second error procedure.. .
Moog Unna Gmbh

Control system for wind turbine having multiple rotors arranged to control support arm orientation

The invention is directed to a wind turbine system comprising a first pair of wind turbines mounted to a support structure by a first support arm arrangement, and a second pair of wind turbines mounted to the support structure by a second support arm arrangement. The first and second support arm arrangements are mounted to the support structure at a respective yaw unit so as to yaw about the major axis of the support structure.
Vestas Wind Systems A/s

Mastless wind turbine for power generation

A mastless vertical axis wind turbine that comprises a plurality of sails that rotate about a vertical axis under the influence of wind. A platform is connected to and in tension with the plurality of sails at one or more points about the bottom of the plurality of the sails.

Steel tower for a wind turbine and a producing the tower

A steel tower for a wind turbine, including a plurality of cylindrical and/or conical tower sections arranged one above another in a tower lengthwise direction which are joined together via horizontally running annular flanges, at least one tower section having at least two section pieces, which are welded together along their adjacent, horizontal and annular end faces and are welded to a horizontal annular flange along each of the free uppermost and lowermost end face, and the at least one tower section being divided into a plurality of section segments which are joined together by longitudinal profiles and connecting means to form a circumferential tower section. At least one of the annular flanges has at least two separation sections in which the annular flange is divided into annular flange segments.
Nordex Energy Gmbh

Steel tower for a wind turbine and a making the tower

A method for making a tower for a wind turbine includes: making tower sections, which can be arranged one on top of another; defining two separation lines running in a longitudinal direction for one of the tower sections and providing a longitudinal profile for a separation line, wherein the profile is formed as a single piece with two legs running parallel at a mutual distance; connecting the profile to the tower section, wherein the legs are connected to the tower section on opposing separation line sides; severing the tower section along the separation line into segments mutually separated by a segment boundary, wherein the monolithic profile is severed and each of the legs remains connected to a segment on a different side of the boundary; connecting segments by the legs of the severed profile to a tower section; and, connecting several tower sections to form a tower.. .
Nordex Energy Gmbh

Wind turbine and wind turbine foundation

A wind energy plant is provided with a foundation base and a tower which is placed on the foundation base. The foundation base has a foundation plate below ground level and a foundation plinth on the foundation plate above ground level.
Wobben Properties Gmbh

Apcha as a building block in curing agent formulations for structural adhesives

The invention relates to structural adhesive compositions and more particularly to two-component (2k) structural adhesive compositions. The two components chemically react to bond structural surfaces.
Evonik Degussa Gmbh

Polyurethane systems for layer structures in wind turbines

The invention relates to a new polyurethane system which can be advantageously used for the production of large structural components made of fiber composite materials, to the use of said polyurethane reaction system for the production of fiber-reinforced structural components, and to the fiber-reinforced structural components produced using the new polyurethane system.. .
Covestro Deutschland Ag

Transit support bracket for cylindrical tubular structure

A transit bracket support system for tubulars such as tower sections of a wind turbine includes a plurality of arcuately spaced slots in a support bracket are adapted to closely receive a plurality of plug plates which include at least one aperture. The slots are formed to correspond to a flange provided on the tubulars and the aperture(s) in the plug plates are formed so as to correspond to holes in the flange.
Time Marine, Inc.

Power conversion systems and associated methods

A wind power generation system including a doubly fed induction generator (dfig) of a wind turbine is presented. The dfig includes a rotor and a stator, a rotor-side conversion unit coupled to the rotor, a direct current (dc) link, and at least one line-side conversion unit coupled to the rotor-side conversion unit via the dc link and coupled to the stator of the dfig.
General Electric Company

System and charging autonomously powered devices using variable power source

A solar or self-powered assembly includes a rechargeable battery and photo voltaic panel and/or wind turbine for supplying a battery charging current. A charge controller processor is controls charging current from the photovoltaic panel and/or wind turbine to maintain the battery in a substantially fully charged state of 80% or more state of charge over daily charge and discharge cycle charging is based on a projected target energy input based on the initial bulk energy charge, the level of discharge required to compensate for charging inefficiencies and the battery capacity factor representative of the projected natural charge in the battery over its lifespan..
Clear Blue Technologies Inc.

Wind turbine tower placement and orientation

Systems and methods for planning a wind farm are provided. One example aspect of the present disclosure is directed to a method for planning a wind farm.
General Electric Company

Methods and systems for generating wind turbine control schedules

A method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more turbine components, based on measured wind turbine site and/or operating data;applying an optimisation function that varies an initial control schedule to determine an optimised control schedule by varying the trade off between energy capture and fatigue life consumed by the turbine or the one or more turbine components until an optimised control schedule is determined, the optimisation including: estimating future fatigue lifetime consumed by the turbine or turbine component over the duration of the varied control schedule based on the current remaining fatigue lifetime and the varied control schedule; and constraining the optimisation of the control schedule according to one or more input constraints; wherein the input constraints include a maximum number of permitted component replacements for one or more turbine components and the optimisation further includes varying an initial value for a wind turbine lifetime to determine a target wind turbine lifetime.. .
Vestas Wind Systems A/s

Discharging arrangement for a wind turbine

There is provided a wind turbine pitch drive unit comprising an electrical energy storage, a resistor, and a cooling fan arranged to provide an air flow over the resistor. The pitch drive unit is configured to discharge the electrical energy storage by: connecting the electrical energy storage to the resistor such that a current from the electrical energy storage flows through the resistor; disconnecting the electrical energy storage from the resistor when a voltage across the electrical energy storage reaches a first pre-determined threshold; and once the voltage has reached the first pre-determined threshold, powering the cooling fan with the electrical energy storage until the voltage reaches a second pre-defined voltage, thereby cooling the resistor..
Moog Unna Gmbh

Floating wind energy harvesting apparatus with improved maintenance

A floating vawt comprising a wind turbine body having a lower body portion and an upper body portion; at least one blade attached to the upper body portion for converting wind energy to rotation of the wind turbine body; and an energy converter attached to the wind turbine body for converting the rotation of the wind turbine body to electrical energy. The energy converter comprises a first energy converter part, and a second energy converter part to be kept relatively stationary in relation to the first energy converter part.
Seatwirl Ab

System for monitoring a wind turbine blade

The present disclosure relates to a system for determining at least one blade state parameter of a wind turbine blade, wherein the system is configured to: obtain blade data relating to the wind turbine blade from a sensor system associated with the wind turbine blade; compare at least one reference model of at least a portion of the wind turbine blade with the blade data; identify a reference model in dependence on the comparison; and determine at least one blade state parameter in dependence on the identified reference model. The blade data may take the form of an image, for example a 3-dimensional measurement such as a point cloud representing at least a portion of the blade..
Vestas Wind Systems A/s

System and monitoring blade deflection of wind turbines

Described is a system for monitoring deflection of turbine blades of a wind turbine comprising a tower. The system comprises a position detecting apparatus mounted to the wind turbine comprising a plurality of position detection components each collecting data regarding a field of detection through which a segment of the turbine blades passes, wherein the position detection components are monitoring distinct fields of detection to collect distances of a plurality of segments of each one of the turbine blades travelling through the fields of detection.
Institut National D'optique

Blade load sensing system for a wind turbine

A sensor system for a wind turbine, comprising: a blade load sensor; a blade temperature sensor configured to provide a temperature measurement of an associated blade; a load calculation module configured to output a temperature-corrected blade load value; and a processing unit interfaced with the temperature sensor. The processing unit includes a temperature estimator configured to determine an estimated temperature of the wind turbine blade based on at least one wind turbine parameter; and a comparator configured to generate a fault signal based on a comparison between the blade temperature measurement and the estimated blade temperature.
Vestas Wind Systems A/s

Method for moving wind turbine components and a transport system for moving wind turbine components

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

Integrated modular wind turbine

An inexpensive modular micro wind turbine system is designed for residential as well as commercial and other installations in low-wind and high-wind environments. Simple replaceable components are easy to manufacture, install and sell in small flat packages to facilitate retail distribution (as a single standalone wind turbine module or a cascading series of daisy-chained modules).
Hush Turb Ltd.

Control system for a wind turbine

The present disclosure relates to a control system for a wind turbine that is configured to: obtain a 3-dimensional image of at least a portion of a wind turbine blade; recognise a target feature of the wind turbine blade in the obtained image and identify the position of the target feature; and monitor the state of the wind turbine blade and/or control operation of at least one blade in dependence on the identified position of the feature.. .
Vestas Wind Systems A/s

Methods and systems for generating wind turbine control schedules

A method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: receiving input indicative of a target minimum wind turbine lifetime; determining a value indicative of the current remaining fatigue lifetime of the wind turbine or one or more turbine components, based on measured wind turbine site and/or operating data; and varying a parameter of an initial predefined control schedule that specifies how the turbine maximum power level varies over time. The parameter is varied by: (i) adjusting the parameter of the initial predefined control schedule; (ii) estimating the future fatigue lifetime consumed by the wind turbine or the one or more turbine components, over the duration of the varied control schedule, based upon the varied control schedule; and (iii) repeating steps (i) and (ii) until the estimated future fatigue lifetime consumed by the wind turbine or each of the one or more turbine components is sufficient to allow the target minimum wind turbine life to be reached..
Vestas Wind Systems A/s

Extreme load control

Methods for calculating a maximum safe over-rated power demand for a wind turbine operating in non-standard conditions include the steps of determining a value indicative of a risk of exceeding an ultimate design load during operation in a standard operating condition, and establishing a maximum over-rated power demand corresponding to a maximum power that the turbine may produce under the non-standard operating condition without incurring an increased risk of exceeding the ultimate design load, with respect to operation in the standard condition. A method of over-rating a wind turbine, a wind turbine controller, a wind turbine and a wind power plant are also claimed..
Vestas Wind Systems A/s

Increasing active power from a wind turbine

The present invention relates to a method for controlling a wind turbine, the wind turbine comprises a rotor connected to a generator, and a rotational speed controller configured to control a speed of the rotor in response to a generator speed reference, and a power controller to control an electric power production, the method comprises the step for receiving a boost command to request a power boost event, so to increase the electrical power production, and imposing a dead band with a dead zone value limit to the rotational speed controller, and wherein the dead band imposes a zero signal to be send to the rotational speed controller, when a speed error is within the dead zone value limit and wherein the dead band imposes an error signal to be send to the rotational speed controller, when a speed error is greater than the dead zone value limit, the error signal being a function of the speed error and the dead zone value limit. The invention also relates to a wind power plant comprising a power plant controller and at least one wind turbine with a control system according to the above mentioned method..
Vestas Wind Systems A/s

Wind generation system and controlling method thereof

A wind generation system includes a wind turbine for generating mechanical power, a doubly-fed induction generator for converting the mechanical power to electrical power, a converter for converting the electrical power to a desired electrical power for supplying to a power grid, and a transformer through which a stator of the generator is coupled to the power grid. When a measured rotation speed feedback from the rotor of the generator is lower than an original cut-in rotation speed of the rotor, a cut-in rotation speed of the rotor is lowered by determining a dc link voltage margin of the converter, determining a dc link voltage setpoint of the converter based on the determined dc link voltage margin; and controlling the converter based on the determined dc link voltage setpoint; and/or by increasing a turn ratio of the transformer to reduce a grid voltage from the power grid..
General Electric Company

Multi-functional flap used as a back-flow flap

The invention relates to a device of a safety system and/or resource and energy-efficiency improvement system for influencing the flow around an aero- or hydrodynamic body, preferably an aerofoil, according to the principle of a back-flow flap, characterized in that: said device, together with the aero- or hydrodynamic body, in particular aerofoil, form at least a partial shift of the delimitation of the flap region by means of the back-flow flap and the delimiting component thereof when the back-flow flap is partially and/or completely raised, thus influencing the trailing edge separation vortex/vortices and/or the flap separation vortex/vortices; and in that the delimitation of the flap region shifts completely up to or beyond the profile trailing edge, or shifts only to a section in front of the profile trailing edge. The delimitation component is movably connected to the aerofoil by means of a basic element and is preferably permanently secured and/or releasably secured for maintenance purposes, thus ensuring a long service life for the rotor blade and/or wind turbine and/or flap system, preferably >5 years, particularly preferably >10 years, and most particularly preferably >=20 years, and/or thus optionally allowing simple removal/replacement..

Ramping power in a wind turbine dependent on an estimated available wind power

The invention relates to a control system for a wind turbine. The wind turbine comprises a power generator configured to generate power dependent on a power request.
Vestas Wind Systems A/s

System and preventing collisions between wind turbine blades and flying objects

A system and a method for control of a wind turbine for prevention of collisions between the rotor and flying objects such as birds, bats, and remotely-piloted aircraft is disclosed. The position and velocity of one or more flying objects is measured.
Sintef Energi As

Wind turbine with folding blades

A wind driven turbine is capable of generating electricity in a wide range of wind speeds and in any wind direction. The turbine employs sets of vertical blades that rotate a vertical drive shaft which in turn attaches on its lower end to an electricity generator.

Wind turbine having releasable vanes

A wind turbine is disclosed. The wind turbine includes a shaft rotatable about an axis, a plurality of hubs fixedly attached to the shaft, and a plurality of vanes.
West Virginia University

Modular wind turbine blades

A modular wind turbine blade is described. The modular wind turbine blade comprises first and second blade modules having spar caps embedded within their outer shells.
Vestas Wind Systems A/s

Rotor blade shaped to enhance wake diffusion

A blade 20 for a horizontal-axis wind turbine rotor comprises a radially-outer, fig. 2 energy-extraction portion 32 and a radially-inner, ventilation portion 30.
Statoil Asa

Wind turbine with rotating augmentor

The present invention is concerned with a wind turbine which is designed to start rotating in lower wind speeds than is conventionally possible, the wind turbine comprising a power take off shaft on which a first rotor is mounted, the first rotor having a first diameter, and on which shaft a rotatable augmentor in the form of a second rotor is mounted coaxially of the first rotor, the second rotor having a second diameter smaller than the first diameter.. .
New World Energy Enterprises Limited

Construction a tower foundation

The invention provides an in-situ concreting construction method of tower foundations (10), particularly wind turbine tower foundations, configured by a base slab (11) with a circular or a polygonal shape, a pedestal (13) with a cylindrical or a prismatic shape and a plurality of radial walls (15) with a prismatic-triangular or a prismatic-trapezoidal shape extending from the pedestal (13) towards the outer edge of the base slab (11). The construction method comprises a curing step in which water is supplied to the foundation in an automatically controlled mode from a plurality of water emitters (59) arranged in water distribution pipes (55, 57) placed over predetermined locations of the foundation (10)..
Gamesa Innovation & Technology, S. L.

Floating wind turbine assembly, as well as a mooring such a floating wind turbine assembly

Disclosed is a floating wind turbine assembly, including a floating platform and a wind turbine arranged on top of the floating platform, the wind turbine having a mast with a mast axis, of which a lower end is connected to the floating platform, and a nacelle arranged on top of the mast, wherein the floating platform is connected to a seafloor with a plurality of tensioned mooring lines, wherein the mooring lines each include a mooring line axis extending in a longitudinal direction of the mooring line, wherein the mooring line axes intersect each other at a crossing position on the mast axis and at an elevation level at or above the nacelle, as well as a method for mooring such a floating wind turbine assembly.. .
Single Buoy Moorings Inc.

Floating structure for wind turbine and intalling same

Floating construction comprising: a flotation base including at least one essentially hollow body selectively fillable with ballast, where the maximum horizontal dimension of the flotation base is greater than the maximum vertical dimension of the flotation base; a building supported by said flotation base, comprising preferably a telescopic tower; downward impelling means; and at least three retaining cables, the corresponding upper ends thereof being attached to said flotation base, preferably at peripheral positions of the flotation base, and the corresponding lower ends thereof being attached to said downward impelling means, such that said retaining cables are tensioned and exert on said flotation base a downward force that increases the stability of the floating construction. And the installation method for this floating construction..
Sea Wind Towers S.l.

Ihc Holland Ie B.v.

. .

A method and a device for determining torsional deformation in a drivetrain

A method of determining torsional deformation in a drivetrain e.g. Of a wind turbine.
Vestas Wind Systems A/s

Uptower wind turbine component replacement

A method for performing uptower maintenance of a wind turbine in order to replace the main bearing on the turbine shaft is disclosed. Embodiments of this method to perform maintenance may include installing a rotor lock to resist rotation of the main shaft during maintenance, providing a lifting device in order to elevate the main shaft, removing the main bearing from its main bearing housing, and installing a replacement split main bearing.
Inventus Holdings, Llc

Tower positioning system

An arrangement to position a part of the tower of a wind turbine to be used during the installation of the tower, and a method to position the part of the tower is provided. An arrangement to position at least a part of a wind turbine tower in respect to a counterpart during installation is disclosed.
Siemens Aktiengesellschaft

Method and system for configuring wind turbines

A method and system of configuring wind turbines is provided. The method and system includes generation of a plurality of configuration profiles.
Siemens Wind Power A/s

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 International, Llc

Pneumatic accessory to limit aerodynamic forces in horizontal axis wind turbine blades

This invention consists of a pneumatic accessory to limit aerodynamic forces in horizontal axis wind turbine blades, which is mainly integrated by an inflatable seal or microtab, a rigid cover with a specific shape that assembles onto a cavity external to the suction surface of the blade, and a pneumatic feed system.. .
Centro De Ingeniería Y Desarrollo Industrial

Operating a wind turbine

A method is provided for operating a wind turbine, including the following steps: operating the wind turbine on a basis of a defined controller setting, operating the wind turbine on a basis of a first alternative controller setting, capturing a first performance information of the wind turbine operating according to the first alternative controller setting, operating the wind turbine on a basis of a second alternative controller setting, capturing a second performance information of the wind turbine operating according to the second alternative controller setting, and operating the wind turbine on a basis of the captured first and second performance information.. .
Siemens Wind Power A/s

Sub-synchronous resonance damping

A method is provided of controlling a doubly fed induction generator—(dfig) wind turbine converter system if a sub-synchronous resonance event acts on the wind turbine. According to the method a sub-synchronous resonance event is detected.
Vestas Wind Systems A/s

Segmented pitch ring for a wind turbine blade pitch system

The present invention provides a segmented pitch ring for use in a blade pitch system of a wind turbine. The segmented pitch ring is formed of a plurality of segments manufactured by different processes.
Vestas Wind Systems A/s

Spar cap assembly for a wind turbine rotor blade

A spar cap assembly for a wind turbine rotor blade with a carbon fiber-reinforced spar cap, a lightning conductor, which extends along the spar cap, and an equipotential bonding element, which connects the spar cap and the lightning conductor together electrically conductively, wherein the spar cap includes a plurality of layers of pultruded semi-finished products and the equipotential bonding element comprises a sheet of a carbon fiber material, which rests against an end face of an end on the blade root side of one of the pultruded semi-finished products and against an end face of an end on the blade tip side of one of the pultruded semi-finished products.. .
Nordex Energy Gmbh

Wind turbine having an identity marker arrangement

A wind turbine id marker arrangement to enable a wind turbine installation to be identified from the air, the id marker arrangement comprising a display surface to which a pattern of tiles are removably attached.. .
Mhi Vestas Offshore Wind A/s

Blade load sensing system for a wind turbine

A method for determining the load on a wind turbine blade, comprising: measuring the blade load by way of a wind turbine blade load sensor; estimating the temperature of the blade; and determining, based on the estimated temperature and the measured load, a temperature-corrected value for the load on the wind turbine blade. The invention also relates to a sensor system for a wind turbine blade, the system comprising a load sensor; a processing unit interfaced with the load sensor and configured to provide a temperature-corrected load parameter as an output, wherein the processing unit includes: a temperature estimation module that determines an estimated temperature of the blade in the vicinity of the load sensor based on at least one wind turbine parameter; and a load compensation module that determines the temperature-corrected load parameter based on the estimated temperature and the measurement of the load sensor..
Vestas Wind Systems A/s

Energy kite winching using buoyancy

Offshore airborne wind turbine systems with an aerial vehicle connected via a tether to an adjustably buoyant body are disclosed. The tether may be coupled to an underwater mooring through which it may move, or it may be coupled to a floating platform through which it may move.
X Development Llc

Control protection of wind turbines

A method is provided of controlling a wind turbine that is operating according to a control signal causing the wind turbine to be over-rated above the wind turbine's rated power. The method comprises: obtaining one or more signals, or values of variables, that indicate the fatigue lifetime of one or more of the wind turbine's components from turbine sensors; applying a lifetime usage estimator algorithm to the signals or values to determine measures of the fatigue life consumed by each of the turbine components; calculating, for each of the turbine components, a rate of consumption of fatigue life based on the measures of the fatigue life consumed by each of the turbine components; and controlling the turbine to reduce the amount of power by which the wind turbine is over-rated based on the rate of consumption of fatigue life for at least one of the turbine components..
Vestas Wind Systems A/s

Ramping power in a wind turbine using gain scheduling

The invention relates to a control system for a wind turbine. The wind turbine comprises a power generator configured to generate power dependent on a power reference and a pitch system configured to adjust the pitch of a blade of the wind turbine dependent on a pitch request.
Vestas Wind Systems A/s

Mastless wind turbine for power generation

A mastless vertical axis wind turbine that comprises a plurality of sails that rotate about a vertical axis under the influence of wind. A platform is connected to and in tension with the plurality of sails at one or more points about the bottom of the plurality of the sails.

A wind turbine and a wind turbine blade

A wind turbine blade, comprising: a shell with an aerodynamic profile forming an outer surface on the suction side and the pressure side of the blade, and at least one reinforcing member comprises a rod (9) having a largest cross section between the first (11) and the second (12) end of the rod (9) and is extending in the internal space (7) and with its longitudinal direction between the suction side (3) and the pressure side (4) in the internal space, and where the shell (2) has a first through hole (10) on the suction or the pressure side of the blade (1), the first through hole (10) having a smallest cross section being larger than the largest cross section of the rod (9), and where the rod (9) has a first head (14) arranged on the first end (11), the first head (14) having a cross section being larger than the smallest cross section of the first through hole (10) and is attached to the outer surface of the shell (2), and where the rod (9) extends from the first head (14) and into the internal space (7) via the first through hole (10), and where the second end (12) of the rod (9) is attached to a second through hole (17) in the shell (2) by a screw (15) having a second head (16) resting against the outer surface of the shell (2), and a threaded shank extending through the second through hole (17) in the shell (2) and being screw connected with the second end (12) of the rod (9).. .
Bladena Aps

Wind turbine rotor blade

The present disclosure is directed to a rotor blade that includes a shell defining an interior cavity. The rotor blade also includes exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge.
General Electric Company

Crane system and an associated method thereof

A crane system for a wind turbine is disclosed. The crane system includes a support structure, a movable structure, a slidable device, a first actuator unit, and a plurality of second actuator units.
General Electric Company

Improvements relating to the production of wind turbine components

A method of making a composite wind turbine component in a mould is described. The method comprises the steps of: providing a mould; providing one or more first layers (20) of material; arranging the first layer(s) of material in the mould; arranging one or more second layers (20) of material on top of the first layer(s) to form a stack (22); and securing the second layer(s) to the first layer(s) by means of one or more fasteners (24).
Vestas Wind Systems A/s

Dc integration of photovoltaic and dfig wind turbine generation with electric storage

A power generation and storage system is provided that supplies power to a power grid. The system includes a wind turbine, a doubly-fed induction generator coupled to the wind turbine, and one or more dc energy sources.
Inventus Holdings, Llc

Pre-formed coil, winding structure, and stator for a generator of a wind turbine and producing a stator

A form-wound coil of a stator of a generator of a gearless wind power installation is provided. The form-wound coil includes an electrical conductor with a first and a second terminal.
Wobben Properties Gmbh

Stator ring for an electric generator, and generator and wind turbine having said stator ring

A stator ring for an electric generator is disclosed. The stator ring may be for a synchronous generator or ring generator of a wind power installation.
Wobben Properties Gmbh

Wind turbine

Provided is a wind turbine including a rotor with a hub and several rotor blades arranged at the hub with the rotor blades being rotatable around an axis relative to the hub by a pitch bearing arrangement, whereby each rotor blade extends into the hub with a blade section, with the pitch bearing arrangement including a first and a second rolling bearing being spaced apart from each other in the direction of the axis and arranged between the blade sections and the hub.. .
Siemens Aktiengesellschaft

Integrated tether and mooring with floating platform for energy kite

Offshore airborne wind turbine systems with an aerial vehicle connected to an undersea anchor via a tether are disclosed. A floating landing platform may be coupled to the tether and be dragged along the surface of the water along with the tether.
X Development Llc

Computer program product, yaw control of wind turbine generator system

The present application discloses a computer program product, a method and an apparatus for yaw control of wind turbine generator system. The method for yaw control of wind turbine generator system includes: obtaining a real-time parameter of wind condition according to a predetermined length of time; performing vector analysis of the obtained parameter of wind condition to obtain a direction angle of prime wind energy; controlling yaw of the wind turbine generator system according to the direction angle of the prime wind energy.
Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Counter-rotating vertical axis wind turbine with deflector and vortex generators

A high efficiency vertical axis wind turbine (vawt) comprising two counter-rotating rotors, each comprising a plurality of straight rotor blades. One rotor is placed on a first vertical axis and another rotor is placed on a second vertical axis.
City University Of Hong Kong

Yawing suppressing apparatus of wind turbine and floating offshore wind turbine

The present invention provides a floating offshore wind turbine capable of suppressing yawing of a nacelle caused by a gyro effect which is a cause of adverse influence of power generating efficiency of a wind turbine and endurance of devices thereof. The floating offshore wind turbine 10 includes a rotor 11 which is rotated by wind, a nacelle 13 in which a rotation shaft 12 of the rotor 11 is accommodated, and a tower 15 including a turning seated bearing 14 which supports the nacelle 13 such that the nacelle 13 can turn with respect to a sea surface p to exert a weathercock effect.
National Institute Of Maritime, Port And Aviation Technology

Connection assembly for wind turbine tower

A connection assembly for a tower of a wind turbine is provided. The connection assembly includes a first tower section segment having an inner surface spaced apart from an outer surface.
General Electric Company

Polyurethane-polyisocyanurate resins for fiber composite materials with a longer open time

A process is disclosed for producing polyurethane-polyisocyanurate-fiber composite parts, wherein a composition comprising polyisocyanate, a mixture obtainable by introducing an alkali metal salt or alkaline earth metal salt into a compound r—nh—co—r′ containing urethane groups, with r′ being not hydrogen and/or not cor″, a compound containing one or more epoxide groups, polyetherol having an average functionality of 1.8 to 5.0 and a hydroxyl number of 200 to 500, a chain extender, fibrous reinforcing agents and optionally further additives form a reaction mixture. The reaction mixture is applied to the fibrous reinforcing agent and caused to react to form the polyurethane-polyisocyanurate-fiber composite part.
Basf Se

Method of correcting rotor imbalance and wind turbine thereof

The present invention relates to a method of correcting rotor imbalance and a wind turbine thereof. The correction method comprises measuring the vibrations within at least one time window and determining an imbalance factor and an imbalance phase.
Envision Energy (denmark) Aps

Control of a wind turbine taking fatigue measure into account

The present invention relates to control of wind turbines where a fatigue load measure is taken into account. Control of a wind turbine is described where a control trajectory is calculated based on a fatigue load measure, the fatigue load measure being determined from a predicted operational trajectory.
Vestas Wind Systems A/s

Vertical axis wind turbine with automatic adjustment of blade angle based on centrifugal force

The invention disclosed a vertical axis wind turbine with automatic blade adjustment of blade angle, comprising a pillar, a rotational axis disposed at the pillar, and a plurality of wind turbine assemblies rotating around the pillar. Each wind turbine assembly comprises a blade, a support, and a swing axis.

Eduction industrial power system

An eduction industrial power system is provided. The system includes one or more vertical-axis wind turbine power plants.
Us Wind Technology Llc

Rotor blade with serrations

A rotor blade for a wind turbine is provided, wherein the rotor blade includes serrations along at least a portion of the trailing edge section of the rotor blade. The serrations include a first tooth and at least a second tooth, and the first tooth is spaced apart from the second tooth.
Siemens Aktiengesellschaft

Wind turbine blade with a trailing edge spacing section

A wind turbine blade is provided with two shell parts each at least partly made of a sandwich structure including an inner skin (76), an outer skin (74), and an intermediate core material (75, 77), wherein the shell parts are bonded together at least along their respective leading edges (18). The blade also comprises a longitudinally extending spacing section in which the respective trailing edges (58a, 58b) of the pressure side shell part and the suction side shell part are spaced apart, wherein a trailing edge shear web (45) is arranged between and connected to the sandwich structure of the suction side shell part (84, 86, 87) and the sandwich structure of the pressure side shell part (74, 76, 77)..
Lm Wp Patent Holding A/s

Foldable utility cart

A foldable utility cart is lightweight and easily conveyed up and down a wind turbine for transporting parts and tools used for repair and maintenance of a wind turbine. A set of wheels allow the cart to be easily rolled along the nacelle and an attachment bar secures the cart to a guidance rail..
Inventus Holdings, Llc

Power system for multiple power sources

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

Method of damping electromechanical oscillations on a power system

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

Atmospheric greenhouse gas removal

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

Tip extensions for wind turbine rotor blades and methods of installing same

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

Method of calibrating load sensors of a wind turbine

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

Wind turbine

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

Rotational positioning system in a wind turbine

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

Overboosting techniques for wind power plant

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

System for wind turbine blade actuation

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

Yaw control for wind generator set

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

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

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

Wind turbine rotor blade

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

Hull for a floating wind turbine platform

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

Rotor of a gearless wind turbine

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

Wind turbine rotor shaft arrangement

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

Wind turbine

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

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

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

Damping mechanical oscillations of a wind turbine

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

Control for a wind turbine

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

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

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

Grease filter

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

Wind turbine converter control

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

Data acquisition system for condition-based maintenance

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

Measuring assembly on a wind turbine

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

Conversion of movable offshore drilling structure to wind turbine application

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

Gravity foundation for the installation of offshore wind turbines

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

Wind turbine power generation system

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

Solar compression power station

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

System and controlling offshore floating wind turbine platforms

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

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

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

Adjusting device for adjusting a rotor blade of a wind turbine

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

Pier and mat foundation fortification and monitoring system

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

Turbine blade disposal system

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

. .

. .

System and monitoring and controlling wind turbines within a wind farm

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

Improved wind turbine suitable for mounting without a wind turbnie tower

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

Attachment methods for surface features of wind turbine rotor blades

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

Tension cord guide in a wind turbine tower

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

Offshore floating structures

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

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

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

Allaroundearth

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

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

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

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

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

Wind turbine system or controlling wind turbine system

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

Wind turbine with open back blade

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

Vertical axis wind turbine

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

Lightning current transmission system for wind turbines

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

Receptor for a lightning protection system

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

Damage detection of a rotor blade of a wind turbine

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

Method for handling an over voltage ride through event

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

Muon-catalyzed controlled fusion electricity-generating apparatus and method

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

Mounting segments and a wind turbine with mounting segments

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

Method of controlling a wind turbine and related system

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

Offshore energy storage device

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

Wind turbine tower section, wind turbine tower and assembly method

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

Modular transportation and storage system for a wind turbine rotor blade

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

Wind farm inertial response

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

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

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

Alternative energy bus bar by pass breaker

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

Method and means for mounting wind turbines upon a column

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

System and methodology for wind compression

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

Damping oscillations in a wind turbine

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

Method for operating a wind turbine

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

Synchronous generator for wind turbine

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

Wind sensor support assembly for a wind turbine

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

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

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

Controlling rotational speed by changing blade profile

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

Wind turbines with reduced electromagnetic scattering

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

Pre-cured rotor blade components having areas of variable stiffness

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

Hollow forging process for main shaft of large wind turbine generator

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

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

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

Wind turbine main shaft bearing and upgrading a main shaft bearing

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

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

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

Automatic and intelligent clutch-type wind turbine system

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

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

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

Vane device for a wind turbine apparatus

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

Jointed rotor blade for wind turbine

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

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

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

Electricity generator powered by air exhaust

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

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

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

Modular active structural vibration suppression for wind turbine blades

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

Method for operating a wind turbine

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

Psp blades with dihedral angles, comprising a longitudinal depression

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

Method for balancing segmented wind turbine rotor blades

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

Automated receptor system

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

Method and producing a preform

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

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

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

Electric generator having multiple electrical machines

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

Device and detecting defect in main shaft of wind turbine

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

Wind turbine with improved cooling

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

Adapters for wind turbine refurbishment

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

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

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

Fluid turbine systems

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

Wind turbine

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

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

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

Vortex generators for wind turbine rotor blades

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

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

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

Battery-supported braking system for a wind turbine

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

Temporal bias correction in wind forecasting

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

Bearing arrangement

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

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

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

Offshore deployable floating wind turbine system and method

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

Offshore deployable wind turbine system and method with a gravity base

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

Airborne wind turbine tether termination systems

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

Bolt connection for a tower of a wind turbine

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

System and controlling a wind turbine

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

Access panel for a wind turbine tower and securing same

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

Structures for offshore installations

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

Wind turbine access panel and securing same

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

Hybrid wind-solar power generation system

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

A wind turbine with a rotor comprising a hollow king pin

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

A wind turbine comprising two or more rotors

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

A wind power plant

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

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

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

Hydrogen oxidation and generation over carbon films

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

Tower damper

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

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

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

Rotor blade pitch arrangement

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

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

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

Turbine for vertical axis wind generator

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

Hub and rotor assemby for wind turbines with conjoined turbine blades

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

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

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

Wind turbine

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

Wind turbine with lightning protection system

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

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

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

Wind turbine

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

Wind turbine rotor blade with vortex generators

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

Wind turbine

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

Partial and full load controllers of a wind turbine

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

Wind turbine wake steering apparatus

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

Wind turbine system

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

Fiber-reimforced molded bodies made of expanded particle foam material

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

Production mold for a rotor blade

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

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

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

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

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

Solar light with wind turbine generator

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

Unmanned aerial vehicle wind turbine inspection systems and methods

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

Wind turbine with wind sensor

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

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

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

Wind turbine tower

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

Method of handling a wind turbine rotor blade pitch bearing unit

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

Power producing walls

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

Methods and systems for feedforward control of wind turbines

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

Calibrating a wind vane of a wind turbine

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

Wind turbine with rotational air guides

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

Morphing segmented wind turbine and related method

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

Erosion resistant coatings

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