|| List of recent Wind Turbine-related patents
| Method of monitoring a wind turbine|
A method of real-time monitoring of the operation of a wind turbine in an operational region of theoretically constant power coefficient is disclosed. The method comprises measuring the electrical power generated by the wind turbine, a representative wind speed, and an ambient temperature.
| Geographical placement of a vertical axis wind turbine|
In an embodiment, an automatic wind turbine placement device may automatically place vertical axis wind turbines in a land plot. The automatic wind turbine placement device may factor a turbine parameter set describing a vertical axis wind turbine array with a land parameter set describing a land plot.
| Method for the computer-supported generation of a data-driven model of a technical system, in particular of a gas turbine or wind turbine|
A method for the computer-supported generation of a data-driven model of a technical system, in particular of a gas turbine or wind turbine, based on training data is disclosed. The data-driven model is preferably learned in regions of training data having a low data density.
| Vertical axis wind turbine with self-starting capabilities|
A vertical axis wind turbine and vertical axis wind turbine assembly comprising a rotary body and a plurality of blades. A cross section through each blade of the plurality of blades transverse to the rotary axis comprises an inner camber line, an outer camber line, and a chord line.
| Braking devices for vertical axis wind turbines|
Braking devices for wind turbines having a vertical axis are disclosed. An example braking device includes a flap able to tip about a tipping axis.
| Mechanical and other improvements of a vertical axis wind turbine|
In an embodiment, a vertical axis wind turbine may be constructed to better survive wear and tear while being more energy efficient. A turbine blade may capture air movement to generate power.
| Wind turbine control method|
A wind turbine control method is described based on the performance of various measurements of the oscillations of the nacelle of the wind turbine for the purpose of carrying out a series of calculations, the results of which allow parameterisation of certain actions on different wind turbine elements in order to dampen oscillations. In summary, it may be said that the object of the invention described herein is a wind turbine control method whereby the oscillations of the nacelle of the wind turbine are dampened in the presence of voltage dips in particular and, in general, in any event that is susceptible of reducing active current generation capacity..
| Method of operating a variable speed wind turbine|
A method of operating a wind turbine having a rotor with a plurality of blades, and one or more pitch mechanisms for rotating the blades is disclosed. The method comprises a sub-nominal zone of operation and a supra-nominal zone of operation for wind speeds above the nominal wind speed.
| Wind turbine for installation in buildings|
In general a building, preferably a skyscraper, is situated with a face toward the prevailing winds of the area. Within the building is a system for capturing the prevailing winds and converting the prevailing winds into energy for use by the building or for local energy needs.
A ventilation device includes a passage unit (100), a wind turbine (200) and a fan (300). The wind turbine (200) is provided above the passage unit (100), and the fan (300) is provided within the wind turbine (200).
|Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same|
A wind turbine includes a rotor having a hub and at least one blade having a torsionally rigid root, an inboard section, and an outboard section. The inboard section has a forward sweep relative to an elastic axis of the blade and the outboard section has an aft sweep..
|Wind turbine rotor blade|
Disclosed is a wind turbine rotor blade includes a root portion, an airfoil portion, a thickened zone extending outward from an inner hub end of the blade into the airfoil portion of the blade; and an airflow correction arrangement arranged on a pressure side of the blade over at least a portion of the thickened zone. The airflow correction arrangement includes a spoiler to increase blade lift and a vortex generator arranged between a leading edge and the trailing edge and realized to maintain an attached airflow between the vortex generator and the spoiler.
|Noise reduction tab and method for wind turbine rotor blade|
Rotor blade assemblies for wind turbines and methods for reducing rotor blade noise are disclosed. A rotor blade assembly includes a rotor blade having external surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root.
|System and method for detecting lightning strikes on a wind turbine|
A system and associated method for detecting lighting strikes on a wind turbine uses a plurality of lightning strike conductors that are connected to any combination of the wind turbine components. A common ground cable is connected to the conductors and to a wind turbine grounding system.
|Power transmission systems|
An offshore wind farm includes a plurality of wind turbines connected to an onshore converter station by means of a distributed power transmission system. The power transmission system includes a series of offshore converter platforms distributed within the wind farm.
The invention relates to a pole shoe of an electrical machine, in particular a rotor of an electrical generator of a wind turbine generator system, comprising a pole shoe body for conducting a magnetic field and for receiving a winding for conducting an electrical current, in particular an excitation current, for producing the magnetic field, and at least one heat sink, entirely or partially surrounding the pole shoe body, for cooling the pole shoe, wherein the heat sink is arranged between the pole shoe body and the winding.. .
|Looped airfoil wind turbine|
A turbine with a basic system of a triangular structure (14) utilizing both lift and drag aerodynamic forces produced by fluid flow energy. The entire triangular structure (14) could either yaw to always face the wind direction (w) or stay in a fixed position.
|Wind turbine system|
A wind turbine system includes a tower, a nacelle which is supported on the tower, a plurality of blades which are rotatably supported to the nacelle via a hub, and a generator which generates electricity by rotating the blades, wherein in case the tower shifts from vertical direction, the wind turbine system is controlled so that a force with an opposite direction to the tower shifting direction is added by wind.. .
|Power generation device|
A one-way clutch used in a wind turbine generator connects an input rotor with an output rotor so that the input rotor and the output rotor are rotatable together with each other when a main shaft rotates in a forward direction and rotation speed of the input rotor is higher than rotation speed of the output rotor, and disconnects the input rotor and the output rotor from each other when the rotation speed of the input rotor is lower than the rotation speed of the output rotor. Further, the wind turbine generator includes a second one-way clutch that permits transmission of force caused by the rotation of the main shaft, to the input rotor when the main shaft rotates in the forward direction, and restricts the rotation of the main shaft when the main shaft tries to rotate in a reverse direction..
|Wind turbine rotor blade components and methods of making same|
Structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating load-bearing support structures and reinforcements of wind turbine blades. Individual preform layers include multiple elongate unidirectional strength elements or rods arranged in a single layer along a longitudinal axis of the preform layer.
|Hydraulic radial-piston pump for wind turbines|
A hydraulic radial-piston pump transfers the wind energy of the rotor to an adjustable hydraulic motor on ground level, driving an electric generator with constant speed. The pump consists of piston assemblies, located in radial direction between camshaft and housing, supported by spherical bearings at the housing and cylindrical bearings at the camshaft, allowing for self-adjustment of the assemblies.
|Wind turbine rotor|
A wind turbine rotor comprising a hub (1) from which a plurality of blades (2) project to a radius of at least 50 metres. Each blade comprising a hollow fairing supported by a central spar.
|Wind turbine blade and related method of manufacture|
A blade for a rotor of a wind turbine, said blade comprising a blade body element provided with a carrier surface to accommodate a heating element, an electrically conductive, elongated and substantially planar heating element disposed upon the carrier surface to extend longitudinally substantially along at least the leading edge of the blade preferably at least about 50% of the length of the blade, more preferably at least about 60% and most preferably at least about 70% respectively, an electrical power supplying conductor element located at one end of the heating element, the conductor element substantially extending over the width of the heating element on both sides thereof and electrically coupling thereto, and a joint structure comprising at least one electrically conductive joint element and substantially covering, on both sides of the heating element, the portions of the electrical conductor element that extend over the width of the heating element, wherein said blade preferably contains an instance of said electrical conductor element and joint structure substantially at both ends of the heating element. A corresponding method of manufacture is presented..
|Asymmetric load control for torsion fatigue reduction in a wind turbine tower|
A method and system for reducing a torsional movement and/or a torsional loading of a tower of a wind turbine is disclosed includes generating a tower torsion signal with a detection system and providing the signal to an asymmetric load control assembly. The tower torsion signal may correspond to an actual torsional movement of the tower or a torsional loading of the tower.
|Vertical axis wind turbine|
A vertical axis wind turbine having a plurality of upright airfoils pivotally engaged. A continuous adjustment of the angle of attack of the airfoils to oncoming wind is provided by rotation of a control plate connected to the vanes which are mounted upon a rotating drive plate.
|Torque limiter, wind turbine and wind turbine generator|
In a torque limiter, wedge-shaped spaces are formed between inner and outer rings so as to be arranged in the circumferential direction. In each wedge-shaped space, there are arranged a first roller and a second roller that transmit torque between the inner and outer rings by being brought into wedge-engagement when the inner and outer rings rotate relative to each other in one direction and in the other direction, respectively.
|Wind turbine control system with decentralized voting|
The present invention relates to a fault-tolerant control system for a wind turbine comprising a plurality of controllable wind turbine components, the control system comprising control means for generating a replica of essentially concurrent set-point values, a data communication network for transmitting the replica of essentially concurrent set-point values to the plurality of wind turbine components, and a plurality of decentralised voting means being arranged so that a decentralised voting means is assigned to each wind turbine component, each decentralised voting means being adapted to select one set-point value out of the replica of set-point values. The present invention further relates to a wind turbine and to an associated method..
|Sliding bearing and method to perform service at a sliding bearing|
A sliding bearing of a wind turbine and a method to perform a service at a sliding bearing are proposed. The sliding bearing has a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell.
|Pole shoe of a generator, preferably a generator of a wind turbine generator system|
The invention concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and a body which passes through the laminated pole assembly in the longitudinal direction and which has a plurality of transversely directed engagement locations, preferably at most three transversely directed engagement locations, into which a respective holding means can engage to fasten the pole shoe on a support, in particular the rotor or stator of a generator. The present invention further concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and an insulating means arranged between the pole assembly and the winding, wherein the insulating means has a fiber composite material..
A wind-driven machine for generating power, which comprises a structure divided so as to facilitate its transportation and assembly constituted by a tower, a gondola on its top end, a plurality of wind collecting blades and a rotary equipment which comprises an electric power generator constituted by an inner stator fixed to the gondola and an outer rotor enclosing the inner stator, a plurality of supporting cups inside which a blade pitch regulating rotary hub is mounted and to which each wind collecting blade is fixed.. .
|Wind turbine generator system and method for operating a wind turbine generator system|
The present invention concerns a method of controlling a wind power installation connected to an electric network having a generator with an aerodynamic rotor with an adjustable rotary speed, in which the wind power installation can be operated at an operating point which is optimum in relation to prevailing wind conditions at an optimum rotary speed, wherein the wind power installation is operated for a transitional period of time or lastingly at a non-optimum operating point at a non-optimum rotary speed and the non-optimum rotary speed is higher than the optimum rotary speed.. .
|Fault-tolerant fire protection system|
The present invention relates to a redundant fire protection system for a wind turbine adapted to feed power into an associated power supply grid, the redundant fire protection system comprising a fire protection control unit, a first group of fire protection related detectors adapted to monitor a first wind turbine component, and a second group of fire protection related detectors adapted to monitor the first wind turbine component, wherein the fire protection control unit is operatively connected to the first and second groups of fire protection related detectors via a redundant power supply and data communication network. The present invention further relates to a wind turbine applying such a redundant fire protection system, and an associated method..
|Wind energy turbine shell station|
A wind turbine station for generating electricity comprising a multi floor structure having open framing the open framing comprising at least two spaced-apart, open, vertical frames, the frames each made primarily of uncovered beams and columns. The station has a plurality of vertically spaced, horizontal, interior platforms forming the floors of the structure, each interior platform extending between and joined to both of the frames over the length of the frames.
|Distributed fault-tolerant control and protection system|
The present invention relates to a distributed fault-tolerant control system for a modularized wind turbine or wind power plant system comprising sub-assemblies, the control system comprising 1) fault-tolerant control means adapted to generate control set-points and/or data values, said fault-tolerant control means being distributed in sub-assemblies in accordance with the modularization of the wind turbine or wind power plant system, and 2) fault-tolerant communication network for transmitting control set-points and/or data values at essentially the same time to a plurality of nodes in the distributed control system, said plurality of distributed nodes being capable of selecting a valid transmission package out of two or more transmission packages provided on the fault-tolerant communication network.. .
|Method and manufacturing line for manufactring wind turbine blades|
Manufacturing line for manufacturing wind turbine blades having a composite shell structure comprising a matrix material and a fibre reinforcement material by use of a resin transfer moulding process is used to assemble wind turbine blades formed in a number of moulds, including at least a first mould part having a first mould cavity. A gantry moves along the manufacturing line, in which the manufacture includes a) arranging fibre reinforcement material in the first mould cavity of a first mould using the gantry means, b) moving the gantry means along the manufacturing line to a second mould, c) supplying curable matrix material into the first mould cavity of the first mould, while substantially simultaneously arranging fibre reinforcement material in the first mould cavity of a second mould using the gantry means.
The invention relates to a wind turbine, comprising a blade, a hub and a bearing for mounting the blade to the hub comprising an inner bearing ring and an outer bearing ring, wherein the blade is connected to the inner bearing ring or the outer bearing ring, wherein the blade comprises multiple cross holes and longitudinal holes for receiving cross bolts and longitudinal bolts respectively in its wall in a connection area where the blade is connected to the inner bearing ring or the outer bearing ring and wherein at least one longitudinal bolt is disposed within the blade wall in thickness direction of the wall.. .
|Fastening rotor blades to the hub of wind turbines|
The invention relates to the fastening of rotor blades to the rotor hub of wind turbines using transverse pins and tension rods in the region of the blade root. The transverse pins are arranged throughout the entire blade root shell wall and can be connected to a flange of the hub by the tension rods in the form of expansion screws.
|Floating offshore wind turbine with tuned mass dampers|
A floating offshore wind turbine comprises a rotor with a plurality of blades, a nacelle and a nacelle support structure having a central longitudinal axis. A plurality of tuned mass damping configurations is arranged around the central longitudinal axis of the nacelle support structure to dampen vibrations in all 6 degrees of freedom..
|Wind energy conversion devices|
A wind turbine for harvesting energy from both horizontal and vertical wind currents having an open frame structure and a central passage through the structure with at least three wind energy harvesting generally vertically disposed and rotatably mounted blades positioned about the central passage and at least three wind energy harvesting generally horizontal blades projecting radially from the central vertical axis of the device. The open frame structure includes a unique rod and cable central structure offset from the periphery of the frame.
|Savonius wind turbine|
A wind turbine, of the savonius wind turbine type, comprises a rotatable member extending along a longitudinal axis and a plurality of blades extending radially outwards from the rotatable member and spaced apart around the circumference thereof. The rotatable member is arranged such that, in normal use, the longitudinal axis extends in a substantially vertical direction and the blades travel around the longitudinal axis.
|Current balance control in converter for doubly fed induction generator wind turbine system|
Systems and methods for reducing current imbalance between parallel bridge circuits used in a power converter of a doubly fed induction generator (dfig) system are provided. A control system can monitor the bridge current of each of the bridge circuits coupled in parallel and generate a feedback signal indicative of the difference in bridge current between the parallel bridge circuits.
|E cubed program|
The program addresses 3 distinct methodologies: energy independence, environmental stewardship and sustainable economic growth. Vertical-axis wind turbines and solar panels will be strategically installed in parking lots and on roofs of commercial and residential structures to generate electricity for immediate and stored use.
|Wind turbine apparatus|
A wind turbine apparatus includes a wind turbine, a support column supporting the wind turbine, and a turning base as a base for the support column, the turning base including a turning gear and a turning base shaft. By turning the turning gear 360 degrees or more, only the wind turbine, or the support column and the wind turbine can turn 360 degrees or more about a rotating axis of the turning gear..
|Vertical axis wind turbine with cambered airfoil blades|
A wind turbine having blades that rotate in a horizontal plane about a vertical axis. A single output shaft is directly connected by one-way bearings to the driven shaft of a permanent magnet generator.
|Tower section and method for installing tower for wind turbine|
Tower sections for towers of wind turbines and methods for installing towers of wind turbines are disclosed. A tower includes a preassembled power module having a first cross-sectional area.
|Fixture, maintenance assembly, and method for maintaining wind turbine gearbox|
Fixtures, maintenance assemblies, and methods for maintaining a wind turbine gearbox are disclosed. The gearbox includes a sun pinion and a bull gear surrounding the sun pinion.
|Wind turbine rotor shaft support structure|
Support structures of a wind turbine, including a bearing housing that supports bearings that allow a rotor shaft to rotate about a rotor axis. The bearing housing may be constructed to minimize forces in the bearings in response moments that act on the rotor shaft about axes other than the rotor axis.
|Load and noise mitigation system for wind turbine blades|
A load and noise mitigation system (40) for attachment to a wind turbine blade (20). The system (40) includes a flex member (42) for attachment adjacent the trailing edge (28) of the blade (20) and a noise reduction member (44) associated with the flex member (42).
|Attachment system for a wind turbine rotor blade accessory|
A rotor blade assembly for a wind turbine has a rotor blade. A strip-member blade accessory is mounted to one of the rotor blade surfaces that stretches under normal operating conditions of the wind turbine.
|Wind turbine rotor and method of mounting|
A wind turbine rotor assembly comprises: a rotor support; a rotor which is rotatably mounted to the rotor support; and a base support; wherein the rotor support and base support are provided with engagement means which allow said rotor support and base support to engage with each other so that when the rotor support and base support are moved together a hinged connection is formed between the rotor support and base support, which hinged connection allows the rotor support to rotate relative to the base support during installation or decommissioning of the rotor.. .
|Wind turbine system with inflatable rotor assembly|
A wind turbine assembly comprising an inflatable rotor assembly.. .
Wind turbine having a yaw system that comprises an annular gear, a plurality of motors, and a gear system having a gearbox and a pinion for each of the motors. Each of the gear systems is arranged to transmit a torque from the related motor to the annular gear.
|Method and arrangement to monitor a bearing|
A method is provided for measuring the condition of the lubrication in a bearing of a wind turbine. The bearing includes a first bearing shell and a second bearing shell and a layer of lubrication between the first and the second bearing shell.
|Magnetic rotor turbine electricity generator|
The invention relates to a method for operating a turbine with an electric generator which can be driven by magnetic rotor/s in order to output electric power to an electricity consumer, storage or an electricity network. The invention also relates to a turbine with magnetic rotor/s and an electric generator coupled to the rotor/s in order to output electric power to an electricity consumer, storage and an electricity network.
|Wind turbine and method of operating a wind turbine|
A method of operating a wind turbine comprising a rotor, a multi winding generator having a plurality of independent sets of control windings and a plurality of independent power electronic converters for controlling each set of control windings independently, the method comprising in a normal operation mode, the plurality of power electronic converters controlling the sets of control windings in substantially the same way, whereas in a positioning mode for positioning a rotor of a wind turbine in one of one or more predetermined angular positions, one of the independent power electronic converters controlling its corresponding set of control windings in a substantially different manner than at least one other independent power electric converter. The invention further relates to a wind turbine adapted to work in at least two different operating modes..
|Method and apparatus for protecting wind turbines from extreme events|
A wind turbine has a scanning lidar arranged on the nacelle. The lidar has a single scanning beam which scans about a substantially vertical axis to sense wind related data in a measurement volume a predetermined distance from the lidar.
There is provided a wind power installation having a component to be monitored and a crack detection unit. In that case the crack detection unit has at least one thread or fiber which is fastened directly on the component to be monitored.
|Voltage control in a doubly-fed induction generator wind turbine system|
Systems and methods for regulating voltage in a doubly fed induction generator (dfig) system are provided. More particularly, the voltage of the auxiliary power feed in a dfig wind turbine system can be regulated by outputting reactive power from a power converter to a reactive element coupled between the auxiliary power feed and a stator bus.
|Method and systems for operating a wind turbine using dynamic braking in response to a grid event|
A method and system for dissipating energy in a direct current (dc) bus of a doubly-fed induction generator (dfig) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least a dfig generator and a line side converter and a rotor side converter connected by a dc bus having a dynamic brake connected thereto; detecting an overvoltage on the dc bus or a condition indicative of an overvoltage on the dc link is detected, the overvoltage on the dc bus or condition indicative of the overvoltage caused by a grid event; and causing energy in the dc link to be dissipated using the dynamic brake..
|Wind turbine tower base assembly with detachable tower base rings|
A tower base ring assembly is provided for securing a wind turbine tower to a foundation. A top ring is configured for securing to a wind turbine tower.
|Planetary transmission of a wind turbine|
A planetary transmission of a wind turbine includes a ring gear which has an internal toothing and at least one planetary gear which has an external toothing that meshes with the internal toothing of the ring gear. The planetary gear is rotatably supported on an axle by a bearing assembly.
|Stiffener plate for a wind turbine|
In one aspect, a stiffener plate for coupling a rotor blade to a hub of a wind turbine is disclosed. The stiffener plate may generally include a mounting flange configured to be coupled to at least one of the rotor blade or the hub.
|Wind turbine system, an assembling method of a wind turbine system, an inspecting method of a wind turbine system, and an operation method of a wind turbine system|
A wind turbine system includes blades which rotate by receiving wind, a nacelle which supports the blades and rotates with the blades, a main shaft for transmitting torque which is connected to the hub and is rotated by the rotation of the hub, and a generator which generates electricity using rotating energy of the main shaft, wherein the main shaft is connected to the hub inside the hub in the axial direction of the main shaft.. .
|Method for backing up and recovering blade zero point of pitch drive system for wind turbine and pitch drive system for wind turbine|
A pitch drive system for a wind turbine includes a pitch drive motor, a first position detector, a driver, a second position detector, and a controller. When the blades rotate to a mechanical zero position, a position value detected by the first position detector is a first zero point position value.
|Transport system for a wind turbine blade|
A transport system for a wind turbine blade is provided. The transport system is configured for increasing a curvature of the wind turbine blade in response to an obstacle during transport of the wind turbine blade.
|Method of installing an offshore wind turbine and a transport vessel thereof|
A method of installing an offshore wind turbine and a transport vessel for use therewith in which a part of a wind turbine is secured to the transport vessel by raising the part in a perpendicular direction relative to the transport vessel into a transport position using a lifting device arranged on the transport vessel at a loading site. The transport vessel is then moved from the loading site out to an installation site.