Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 751 - 800 out of 6,064

Document Document Title
WO/2015/090655A1
A pitch actuator arrangement for a wind turbine comprises a fixed ring on which two pitch cylinders are fixed. A bridge carrying various mechanical and electrical devices such as accumulators, an electrical box, mechanical and electrical...  
WO/2015/091179A1
A method for pitch control of the rotor blades of a rotor of a wind turbine comprises a step of reading (601) a first acceleration signal which represents an acceleration affecting a first rotor blade substantially parallel to the rotor ...  
WO/2015/086024A1
The present invention refers to a method for operating a wind turbine, the wind turbine particularly comprising a tower and a rotor with rotor blades. The pitch angles of the rotor blades are adjusted to generate a force on the rotor and...  
WO/2015/086021A1
In various embodiments of the present disclosure, there is provided a method for increasing the reactive power capability of a wind power plant, in controlling a wind power plant. According to an embodiment, the method includes receiving...  
WO/2015/086022A1
In various embodiments of the present disclosure, there is provided a method for controlling a reactive current injection in a wind power plant during a grid fault. According to an embodiment, the method includes measuring an amount of r...  
WO/2015/086023A1
The invention presents a method for operating a horizontal axis wind turbine (1), the wind turbine comprising a tower (2) and a rotor (5) with at least one rotor blade (51), the rotor being connected to the tower, and being adapted to dr...  
WO/2015/085465A1
A system and method for reducing oscillation loads of a wind turbine induced by high turbulence and/or combined with other environmental conditions are provided. The method includes determining at least one wind parameter at the wind tur...  
WO/2015/083633A1
Provided is a windmill drive device capable of easily grasping the amount of wear of the friction plate and capable of easily detecting the occurrence of friction plate operation failures. A pinion (25a) in an output unit (25) meshes wit...  
WO/2015/084919A1
A wind turbine is provided. The turbine includes a support having an axis of rotation, a generator, a plurality of blades rotatably mounted on the support about the axis of rotation, the 5 blades being moveable between a retracted positi...  
WO/2015/078472A1
The invention relates to a method for controlling injection and absorption of reactive power in a wind power plant (WPP). In addition to wind turbine generators (WTG), the wind power plant comprises reactive power regulating devices, suc...  
WO/2015/078474A1
The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of...  
WO/2015/078471A1
The present invention relates a method of controlling a wind power plant connected to an electrical grid, the wind power plant comprises a power plant controller (350), a plurality of wind turbine generators (1) and a STATCOM (230), with...  
WO/2015/053640A3
The present invention relates to a wind turbine machine comprising a supporting means, a pair of spaced apart counter rotatable front and rear rotors being rotatably supported on said supporting means, said front and rear rotors being ad...  
WO/2015/080338A1
A blade inclination angle control device of a wind power generator, including a guide part, according to the present invention, is an inclination angle control device for controlling the inclination angle of a blade provided to a wind po...  
WO/2015/078470A1
The present invention relates to a method for supervision of an electrical measurement in a wind power plant, with a plurality of wind turbine generators, the method comprises, a) measuring a measurement of an electrical parameter (311) ...  
WO/2015/079176A1
The invention relates to a system for transmitting signals (106), including a device (601) for transmitting data between a movable portion and a stationary portion of a windmill, to be installed on the mobile portion or the stationary po...  
WO/2015/078478A1
Embodiments of the present disclosure generally relate to apparatus and methods for preventing power dips associated with power ramping in wind turbines. One embodiment of the present disclosure provides a method for stabilizing power ou...  
WO/2015/074664A1
The invention relates to a control apparatus and method for controlling the rotor blades of a wind turbine, and in particular to controlling the rotor blades during an extreme wind event. An extended mode of operation of the wind turbine...  
WO/2015/070870A1
The invention relates to a wind turbine having at least one rotor blade comprising: a transmitter arranged to transmit an electro-magnetic (EM) radiation signal having spatially dependent characteristics;a receiver arranged to receive th...  
WO/2015/071863A1
The invention is a wind turbine (A) comprising a rotation axis (Z, Y) suited to be positioned in space in any way and N blades (1) indirectly constrained to said axis (Z, Y) through one or more radial arms (3) that in turn are integral w...  
WO/2015/066003A1
An integrated wind turbine acoustic-noise and shadow- flicker recognition system, comprising monitors located at nearby locations and base-units installed in each wind turbine, is described. The system comprehensively addresses neighbors...  
WO/2015/013149A3
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 connec...  
WO/2015/058689A1
A vane assembly, particularly suitable for a transverse flow, or vertical axis, turbine or a propulsion device comprises: avane with at least one concavo-convex part that is mounted by a pivot about so that it is free to rotate about a p...  
WO/2015/059231A1
Wind turbine blades comprising one or more deformable trailing edge sections, each deformable trailing edge section comprising a first and a second actuator, wherein the second actuator is arranged substantially downstream from the first...  
WO/2015/061379A1
A wind turbine provided with a yaw brake system is described. The yaw brake system comprising a brake calliper and a brake disc, the yaw brake system, when activated, acting as a rotation restriction of a nacelle in relation to a tower o...  
WO/2015/058769A1
A method for controlling a wind power plant, the wind power plant including a plant controller for controlling a plurality of wind turbine generators. The method for controlling a wind power plant allows the wind power plant to continue ...  
WO/2015/059232A1
Wind turbine blades comprising one or more deformable trailing edge sections having a multistable sheet comprising a plurality of bistable elements, each bistable element having two stable positions, wherein the multistable sheet is atta...  
WO/2015/055217A1
The present invention relates to a system for electric pitch control primary for wind turbine blades, which system comprises at least one first electric motor, which motor is electrically coupled to a first electronic control device, whi...  
WO/2015/055958A1
The invention relates to a wind turbine (1) comprising: - a rotor (5) rotating about a horizontal axis (15) of rotation substantially parallel to the direction of the wind, the rotor (5) having a front face (6) facing into the wind and s...  
WO/2015/052175A1
A vertical-axis wind turbine apparatus is disclosed. In at least one embodiment, the apparatus provides a substantially vertically-oriented main shaft. A blade assembly is coaxially aligned with and rotatably engaged about the main shaft...  
WO/2015/053640A2
The present invention relates to a wind turbine machine comprising a supporting means, a pair of spaced apart counter rotatable front and rear rotors being rotatably supported on said supporting means, said front and rear rotors being ad...  
WO/2015/051801A1
Methods and systems for controlling a wind turbine in a manner that takes into account the degree of loading of and damage to one or more components of the turbine are provided. An operational load on a wind turbine part is determined, a...  
WO/2015/053768A1
A vortex generator (VG) (42, 64, 80, 82, 84) mounted via a mounting plate (44, 92) to a wind turbine blade (22, 98). The VG airfoil (46) may be pivotally attached to the mounting plate by a spring hinge (48, 85) that causes the VG airfoi...  
WO/2015/048972A1
A control method and apparatus for safe mode operation at high yaw error is described. A yaw error detection block (2) detects a yaw error. A load-reducing controller (4), for mitigating one or more structural loads associated with the y...  
WO/2015/046129A1
Provided is a monitoring system for monitoring the state of machinery for a wind power generator that has reduced costs. A monitoring system for a wind power generator comprises: a microphone (90, 91) that acquires acoustic data and that...  
WO/2015/044795A1
Installation for electricity generation from the unidirectional and bidirectional flow of a fluid, air in particular. This type of installation includes: - a conduit (2) through which the flow passes; - a turbine (4) located inside the c...  
WO/2015/043602A1
A wind turbine generator 1 is connected to a section 2 of an electricity grid 3 via a converter 4, which converts the ac output power from the generator into three-phase electric power at the voltage and frequency of the grid 3. The conv...  
WO/2015/047148A2
The present invention relates to a floating unit adapted to extract energy from the wind comprising a floater exhibiting a square figure of structural elements permanently attached to nine orthogonal equidistant primary nodes each one of...  
WO/2015/039665A1
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 hub. The method comprises providing wak...  
WO/2015/040360A1
A hydraulic transmission comprising a variable displacement pump and motor, at least one of which has cylinders having valves which are controllable on each cycle of cylinder working volume to determine the net displacement of working fl...  
WO/2015/037024A1
A process is described for managing, adjusting and controlling at least one high-altitude wind generator, of the type preferably comprising at least one kite operatively connected through driving tie-rods to winches or other mechanisms f...  
WO/2013/190034A3
The invention relates to a wind turbine (1) having a pitch drive (3) for rotor blade adjustment, wherein the drive control (31) of the pitch drive (3) reacts to disturbing torques (SM) during operation of the wind turbine (1) in a balanc...  
WO/2015/036010A1
A system and a method for predictably configuring a component of a wind turbine are presented. The system includes a central repository storing a set of states for the component and a set of corresponding weather condition entries, a sch...  
WO/2015/032409A1
To efficiently run a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configu...  
WO/2015/035262A1
A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height...  
WO/2015/032410A1
To safely operate a wind turbine, a control system may determine a current state of the wind turbine and identify whether the state is within an operational envelope. Based on measured sensor data, the control system may calculate the cu...  
WO/2015/028399A1
The invention relates to a wind turbine comprising a wind rotor (13) for driving a generator (14) comprising a converter (15) for generating electric power, a controller (2) and an internal power supply unit (4), for which an auxiliaries...  
WO/2014/189978A3
A method for controlling an inclination of a floating wind turbine platform comprising a generator, a set of turbine blades connected to a shaft inside a turbine nacelle, the turbine nacelle being mounted onto a tower, and at least three...  
WO/2015/024895A1
The present wind turbine blade comprises an airfoil structure comprising an airfoil shape, an internal support structure arranged spanwise along the length of the blade within the airfoil structure, and an elastic connection joining a po...  
WO/2014/192028A3
The present disclosure discloses a reconfigurable mechanism for wind turbine blades. The wind turbine is provided with only a single actuator for reconfigurable mechanism which is adapted for expansion and contraction of blades. The reco...  

Matches 751 - 800 out of 6,064