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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



 Synchronous generator, in particular multipole synchronous annular generator of a direct-drive wind turbine, and wind turbine having the same patent thumbnailSynchronous 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 patent thumbnailSystem 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 patent thumbnailThreaded 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 patent thumbnailEccentric 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 patent thumbnailWind 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 patent thumbnailControl 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 patent thumbnailA 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 patent thumbnailSystem 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 patent thumbnailConveyance 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 patent thumbnailMethod and determining loads of a wind turbine blade
Method and blade monitoring system for monitoring bending moment of a wind turbine blade. The method comprises obtaining a first sensor set signal indicative of a first bending moment at a first sensor position different from the tip end along the longitudinal axis of the wind turbine blade, and estimating a bending moment at a first estimation position along the longitudinal axis based on the first sensor set signal, wherein the first sensor position is different from the first estimation position along the longitudinal axis.
Lm Wp Patent Holding A/s


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

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

System and improving lidar sensor signal availability on a wind turbine

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

Planetary gear train for a wind turbine

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

Magnetic damper for vibration absorbers

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

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

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

System and de-icing a wind turbine rotor blade

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

Carbon fiber motor rotor integrating propeller mount

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

Power generation system

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

Wind turbine power generating apparatus and operating the same

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

Wind turbine power generating apparatus and operating the same

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

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

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

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

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

Improvements relating to reinforcing structures for wind turbine blades

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

Wind turbine blade provided with surface mounted device

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

Lifting device for a wind turbine rotor blade

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

Structure with rigid winglet adapted to traverse a fluid environment

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

Tethers for airborne wind turbines using electrical conductor bundles

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

Stabilizing a wind turbine assembly

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

Modular system for transporting wind turbine blades

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

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

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

Apparatus and aerodynamic performance enhancement of a wind turbine

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

Flexible wind turbine apparatus

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

Composite component having a safety edge

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

Wind turbine blade comprising root end bulkhead

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

Mould for moulding wind turbine blade and assembly of mould

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

Wind turbine with directly driven generator

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

Prefabricated footing for wind turbine towers

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

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

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

A profile wedge for attachment of an aeroshell extender piece

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

Rotor blades having structural skin insert and methods of making same

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

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

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

Drive system for wind turbine with contra-rotating generator

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

Hydroelectric power generating system

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

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

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

Kit for a wind station, and method

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

A wind turbine yaw control method and system

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

Dual rotor wind power assembly (variants)

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

Platform for generating electricity from flowing fluid using generally prolate turbine

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

Wind turbine with optical pressure sensors and operating a wind turbine

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

An aeroshell extender piece for a wind turbine blade

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

Compositions comprising a fiber material and a thermoplastic binder

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

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

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

Active promotion of wind turbine tower oscillations

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

Wind turbine tower and erecting a wind turbine tower

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

Wind turbine pitch cabinet temperature control system

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

Wind turbine control method and associated wind turbine

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

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

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

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

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

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

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

Lightning measuring system for a wind turbine

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

Wind turbine with a modular drive train

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

A wind turbine with a tower-mounted heat exchange structure

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

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

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

Operating a wind turbine

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

Wind turbine with improved safety features

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

Wind turbine with improved mast assembly

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

Calibrating a yaw system of a wind turbine

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

System and controlling wind turbines

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

Wind turbine diagnostic apparatus with diverse sensor testing

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

Pressure and vacuum assisted vertical axis wind turbines

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

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

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

Pressure controlled wind turbine enhancement system

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

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

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

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

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

Methods and systems for inspecting a wind turbine blade

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

Remote tracking of automatic lateral switch operations

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

Methods and systems for controlling a wind turbine

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

Systems and methods for a winch drum and drum door

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

Anchoring line for a floating base, comprising an elastic device

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

Wind turbine components

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

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

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

Microwave absorbing composite for turbine blade applications

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

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

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

Bearing for wind turbine

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

Stacking wind turbine blades for sea transport

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

A vertical axis wind turbine with controllable output power

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

Distributed control system

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

Wind turbine rotor blade trailing edge segment

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

Torque absorber for wind turbine gearboxes

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

Lightning current transfer arrangement of a wind turbine

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

Wind turbine nacelle structure

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

Portable power generating solar cell wind turbine

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

Wind turbinecontroller with pitch feedback control loop in partial load

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

System for thrust-limiting of wind turbines

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

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

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

Modular transporting tower assembly of wind turbine

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

Support tower, particularly for a wind turbine

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

Foundations system for towers and installing the foundations system for towers

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

Improvements relating to wind turbine blade manufacture

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

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

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

Wind turbine noise reduction with acoustically absorbent serrations

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

Wind turbine auxiliary circuit control

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

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

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

Wind turbine blade manufacture

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

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

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

Sensing system and method

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

Planetary gearing having an emergency lubricating device

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

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

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

System for dynamic pitch control

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

Vertical axis wind turbine and operating such a turbine

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

Wind turbine

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

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

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

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

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

Rotor blade with noise reduction means

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

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

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

Turbinator

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

Aft rotor ducted wind turbine

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

Multi-tiered wind turbine apparatus

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

Variable area blade turbine and conditioning flow deflectors device and method

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

Improved apparatus

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

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

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

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

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

Condition monitoring system and wind power generation system using the same

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

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

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

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

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

Wind turbine device having a flow guide casing

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

Vertical axis wind turbine structure

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

Ultrasonic bat deterrent system

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

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

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

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

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

Wind turbine rotor blade having an electric heating device

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

Wind turbine having a slip ring transmitter

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

Tower section production process

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

System and categorizing trip faults of a wind turbine power converter

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

Turbine blade arrangement

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

Control of wind turbines in response to wind shear

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

A tip system for a wind turbine blade

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

Wind turbine assembly system and associated method

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

Personnel safety shield and system

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

Lifting device for rotor assembly and method thereof

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

Ground station for airborne wind turbine

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

Liquid-cooled electrical apparatus

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

Wind turbine system for generating electrical power

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

System and assembling a wind turbine

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

Portable power generator

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

Wind turbine deceleration method and system

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

Pre-cured composites for rotor blade components

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

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

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

Method and means for mounting wind turbines upon a column

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

Capacitors having engineered electrodes with very high energy density

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

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

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

Determining a deflection of a rotor blade of a wind turbine

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

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

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

High frequency bi-directional ac power transmission

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

Wind turbine with a speed regulator and a generator regulator

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

Vertical wind turbine

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

Noise reducer for a wind turbine blade

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

A wind turbine blade

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

Wind turbine rotor blade assembly with surface features

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

Profilometry inspection spar caps of composition wind turbine blades

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

Tool for handling a long and heavy object

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

Methods and computer-assisted spray foam fabrication

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

Methods and computer-assisted spray foam fabrication

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

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

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

Use of compressed air to generate energy using wind turbines

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

Bird or bat detection and identification for wind turbine risk mitigation

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

Tip extension assembly for a wind turbine rotor blade

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

Ladder attachment system for a wind turbine

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

A repairing an electric generator

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

Wind turbine drip loop cable securement assembly

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

State monitoring system

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

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

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

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

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

Wind turbine with over-rating control

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

Apparatus for changing the angle of inclination in wind turbines

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

Controlling a target system

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

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

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

Optimal wind farm operation

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

Bolted joint for a wind turbine blade

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

Segmented wind turbine rotor blade with rod and tube joint connection

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

Method and permanent magnet attachment in an electromechanical machine

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

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

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

Wind turbine

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

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

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

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

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

Thermoplastic airflow modifying elements for wind turbine rotor blades

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

Method for manufacturing blade components using pre-cured laminate materials

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

Methods for modifying wind turbine blade molds

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

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

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

Wind turbine inspection

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

Cooling apparatus

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

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

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

Wind turbine with a brake dust collector

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

Wind turbine condition monitoring method and system

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

Modular coupling of a wind turbine gearbox to a generator

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

Wind turbine station and tower with vertical storage tanks

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

Current limit calculation for wind turbine control

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

Control a wind turbine

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

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

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

Wind turbine power generating apparatus and connecting the same

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

Turbine blade

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

Methods for joining shear clips in wind turbine rotor blades

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

Methods for joining surface features to wind turbine rotor blades

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

Compressed air energy storage system

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

Reinforced bearing of a wind turbine

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

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

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

Support structure of a wind turbine

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

Wind turbine blade removal and installation system and method

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

Apparatus and power generation using compressed air

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

Methods of operating a set of wind turbines and systems

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

Vehicle mounted electrical generator

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

Method for controlling a wind turbine

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

Apparatuses and methods for balancing a wind turbine assembly

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

Hub for a wind turbine and a fabricating the hub

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

Wind blade for wind turbine

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

Composite layers for bonding components of a wind turbine rotor blade

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

Maintenance access to blade bearing

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

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

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

Electrical cabinet wall for an electrical cabinet of a wind turbine

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

System and mitigating ice throw from a wind turbine rotor blade

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

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

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

Shear web for a wind turbine rotor blade

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

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

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

Thermoplastic pultruded stiffeners for locally reinforcing a wind turbine rotor blade

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

Modular wind turbine rotor blade constructed of multiple resin systems

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

Rotor blades having thermoplastic components and methods of assembling same

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

Erosion resistant leading edge cap for a wind turbine rotor blade

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

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

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

Rotor blade components having varying fiber density regions

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

Methods for repairing wind turbine rotor blades

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

Tower for a wind turbine with buttresses

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



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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    This listing is a sample listing of patent applications related to Wind Turbine for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Wind Turbine with additional patents listed. Browse our RSS directory or Search for other possible listings.


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