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Wind Turbine patents

      

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

SALE: 440+ Wind Turbine-related patent PDFs



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


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


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


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


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


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


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


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


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

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


Wind turbine with improved safety features

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

Improvements relating to wind turbines

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

Wind turbine energy tube battery charging system for a vehicle

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

System and micrositing a wind farm for loads optimization

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

Rotor blade with noise reduction means

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

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

Bolted attachment for attaching wind turbine parts

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

Locating a lightning strike at a wind turbine

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

Lightning receptor for a wind turbine rotor blade

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

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

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

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

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

System and determining wind farm wake loss

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

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

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

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

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

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

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

Wind turbine which can be moved in translation

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

Tower segment handling method and apparatus

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

Epoxy systems for composites

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

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

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

Smooth pitch control for propellers and rotors

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

Wind-turbine converter control for modular string converters

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

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

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

Lightning protection wind turbine blades

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

System and detecting pitch bearing damage in a wind turbine

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

System and validating optimization of a wind farm

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

Determination of wind turbine configuration

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

Automative system management

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

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

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

Power ramp rate limiter for wind turbines

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

Wind turbine

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

Adaptive oscillation damper having a vertical spring mechanism

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

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

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

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

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

Tower section and a a tower section

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

Device for fastening and/or guiding strand-shaped elements

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

Wind turbine bearings

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

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

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

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

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

Hybrid tubular lattice tower assembly for a wind turbine

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

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

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

System and controlling the operation of a wind turbine

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

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

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

Design of a wind turbine

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

A shear web mould system comprising variable moulding plates

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

Manufacture of i-shaped shear web

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

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

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

Nacelle for a wind turbine, the nacelle comprising side units

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

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

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

Method for estimating a wind speed in a stable manner

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

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

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

Wind turbine blade provided with surface mounted device

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

Wind turbine blade with noise reducing micro boundary layer energizers

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

Thermodynamic wind turbine

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

Data management systems and methods

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

Main shaft fixture

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

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

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

System and estimating high bandwidth tower deflection for wind turbines

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

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

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

Rotor blade for wind turbine

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

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

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

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

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

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

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

Wind turbine panel

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

Method for responding to a grid event

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

Savonius wind turbines

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

Noise reduction to the trailing edge of fluid dynamic bodies

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

Transition piece for wind turbines and connecting structures

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

Roof system with energy efficient features

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

Universal lighting system

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

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

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

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

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

Adjustable dual rotor wind turbine

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

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

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

Method and arrangement for performing a wind direction measurement

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

Aviation beacon device for a wind turbine

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

Method and arrangement for continuous calibration of a wind direction measurement

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

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

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

Wind turbine rotor balancing method, associated system and wind turbine

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

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

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

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

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

Optimal wind farm operation

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

Wind turbine rotor blade

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

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

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

Multiple airfoil wind turbine blade assembly

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

Reducing the load of a wind turbine rotor blade during installation

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

Profiled protective tape for rotor blades of wind turbine generators

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

System for transporting and installing wind turbines on the seafloor

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

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

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

Tool and a moving a wind turbine drivetrain component

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

Vertical axle or axis helically swept blade wind turbine

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

Wind turbine rotor blade assembly with root extension panel and assembly

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

A manufacturing a mould for a wind turbine blade shell

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

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

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

Wind pitch adjustment system

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

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

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

Wind power generation system

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

Rotor blade for wind turbines

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

Bolted joint for rotor blade segments

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

Trailing edge air duct of a wind turbine rotor blade

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

Random pulse width modulation for power converters

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

Synchronous generator of a gearless wind turbine

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

System for storing electrical power

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

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

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

Sliding bearing arrangement for a wind turbine

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

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

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

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

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

A determining deflection of a wind turbine blade

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

Wind turbine device

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

Fluid turbine blade device

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

A de-icing system for a wind turbine blade

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

Modular transporting tower assembly of wind turbine

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

Wind turbine blade with customised chord length

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

System and ground based inspection of wind turbine blades

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

Method of testing wind-turbine receptor

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

Acoustic damping system for a wind turbine tower

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

Hinged tower segments and transport method

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

Control of a wind turbine based on operational trajectory validation

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

Control of wind turbines

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

Wind turbine for use in high winds

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

Wind turbine, yaw control device, and operation control method

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

Vertical axis wind turbine

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

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

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

Mounting method and template for vortex generator

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

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

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

Optimized multiple airfoil wind turbine blade assembly

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

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

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

Internal ladder assembly for a wind turbine rotor hub

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

Concrete towers manufacturing wind turbines and concrete tower for wind turbine

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

Composition

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

A control system for a wind turbine generator

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

Reactive power support from wind turbine facilities

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

Fatigue testing of a wind turbine blade

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

Repairing a gear part in a wind turbine

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

Wind turbine generator assemblies

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

Verification of wind turbine nacelle yaw position sensor

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

Multi-turbine wind power platform for offshore applications

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

Turbine over-rating using turbulence prediction

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

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

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

Improvements relating to wind turbine blade manufacture

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

Wind turbine blade having a trailing edge flap

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

Hinged tower segments and transport method

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

Reinforced wind tower

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

Floatable support structure for an offshore wind turbine or other device

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

A process for producing a composite article

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

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

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

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

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

Motor control topology for airborne power generation and systems using same

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

Combination wind/solar dc power system

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

Spacer for wind turbine cables

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

Condition monitoring system and wind power generation system comprising the same

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

Vertical axis wind turbines

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

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

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

Operating a wind turbine of a wind farm

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

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

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

A wind power plant with reduced losses

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

Wind turbine rotor blade

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

A reinforced wind turbine blade component

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

Blade for a wind turbine

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

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

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

Method for installing a rotor blade on a wind turbine

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

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

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

System and operating a wind turbine

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

Threaded planetary pin

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

Eccentric clamping bushing

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

Wind turbine and ice removal in wind turbines

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

Control of a wind turbine with a fault condition

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

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

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

System and upgrading multivendor wind turbines

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

Conveyance device for an energy collector

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

Method and determining loads of a wind turbine blade

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

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

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

System and improving lidar sensor signal availability on a wind turbine

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

Planetary gear train for a wind turbine

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

Magnetic damper for vibration absorbers

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

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

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

System and de-icing a wind turbine rotor blade

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

Carbon fiber motor rotor integrating propeller mount

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

Power generation system

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

Wind turbine power generating apparatus and operating the same

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

Wind turbine power generating apparatus and operating the same

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

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

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

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

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

Improvements relating to reinforcing structures for wind turbine blades

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

Wind turbine blade provided with surface mounted device

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

Lifting device for a wind turbine rotor blade

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

Structure with rigid winglet adapted to traverse a fluid environment

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

Tethers for airborne wind turbines using electrical conductor bundles

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

Stabilizing a wind turbine assembly

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

Modular system for transporting wind turbine blades

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

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

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

Apparatus and aerodynamic performance enhancement of a wind turbine

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

Flexible wind turbine apparatus

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

Composite component having a safety edge

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

Wind turbine blade comprising root end bulkhead

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

Mould for moulding wind turbine blade and assembly of mould

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

Wind turbine with directly driven generator

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

Prefabricated footing for wind turbine towers

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

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

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

A profile wedge for attachment of an aeroshell extender piece

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

Rotor blades having structural skin insert and methods of making same

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

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

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

Drive system for wind turbine with contra-rotating generator

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

Hydroelectric power generating system

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

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

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

Kit for a wind station, and method

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

A wind turbine yaw control method and system

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

Dual rotor wind power assembly (variants)

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

Platform for generating electricity from flowing fluid using generally prolate turbine

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

Wind turbine with optical pressure sensors and operating a wind turbine

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

An aeroshell extender piece for a wind turbine blade

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

Compositions comprising a fiber material and a thermoplastic binder

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

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

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

Active promotion of wind turbine tower oscillations

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

Wind turbine tower and erecting a wind turbine tower

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

Wind turbine pitch cabinet temperature control system

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

Wind turbine control method and associated wind turbine

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

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

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

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

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

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

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

Lightning measuring system for a wind turbine

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

Wind turbine with a modular drive train

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

A wind turbine with a tower-mounted heat exchange structure

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

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

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

Operating a wind turbine

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

Wind turbine with improved safety features

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

Wind turbine with improved mast assembly

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

Calibrating a yaw system of a wind turbine

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

System and controlling wind turbines

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

Wind turbine diagnostic apparatus with diverse sensor testing

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

Pressure and vacuum assisted vertical axis wind turbines

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

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

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

Pressure controlled wind turbine enhancement system

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

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

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



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


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