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Matches 1 - 50 out of 5,707

Document Document Title
WO/2018/190968A1
The present disclosure relates to systems and methods for rotating a floating platform. An example method includes determining a desired position of a floating platform in a yaw axis. The floating platform is fixed by an anchor leg to an...  
WO/2018/188821A1
The invention describes a safety stop valve arrangement (1) of a hydraulic blade pitch system (2) of a wind turbine, comprising an accumulator arrangement (15) connected over a hydraulic line (14) to a piston of the hydraulic blade pitch...  
WO/2018/190895A1
A vertical axis wind turbine has a blade assembly including set of planar, vertically extending blades and a frame that stabilizes and supports the blades as they rotate. A generator is located at the blade assembly's center of mass. A f...  
WO/2018/187645A1
Systems and methods for operating a cluster transformer operably coupled to cluster of DFIG wind turbines in low- wind conditions are provided. A wind turbine cluster system can include at least one DFIG module, a cluster transformer, an...  
WO/2018/184645A1
Embodiments herein describe a wind turbine controller that includes a thrust limiter for controlling the thrust of the blades of wind turbine using an estimate of the air density at the wind turbine. In one embodiment, the controller rec...  
WO/2018/177615A1
A method is proposed for determining an orientation of a rotor plane of a wind turbine, comprising the following steps : - determining direction information (201, 301, 401) of a moving part (131) of a wind turbine on basis of at least on...  
WO/2018/171852A1
A wind turbine comprising a tower, a nacelle, a rotor including a plurality of blades, an electrical generator operatively coupled to the rotor, and a control system. The control system comprises: a sensing system operable to output a si...  
WO/2018/176004A1
A wind power generating rotor system for a wind turbine. The rotor system includes a rotor assembly having a rotor axis and a plurality of rotor blades structured and arranged for rotation around the rotor axis by wind passing the rotor ...  
WO/2018/174738A1
The essence of the invention consists in reducing the formation of eddies at rotating blade wheels, such as propellers, turbines, wind wheels, and axial fans, which interfere with the normal operation of wheels since eddies separating fr...  
WO/2018/162102A1
The invention relates to a wind turbine (10) with a rotor blade (20), wherein the rotor blade (20) comprises a pneumatically activatable aerodynamic device (41) and the wind turbine (10) comprises a pressure supply system for controlling...  
WO/2018/162100A1
The invention relates to a rotor blade (20) of a wind turbine (10) comprising an aerodynamic device (28) which can be actuated pneumatically by the use of a pressure supply system (30). The pressure supply system (30) comprises a pressur...  
WO/2018/162706A1
The invention relates to a method for determining the available power of a wind park (112). The wind park comprises multiple wind turbines (100) with a rotor (106) comprising rotor blades (108) with adjustable blade angles. The invention...  
WO/2018/158180A1
The invention relates to an adjustment unit (202, 302) for azimuth adjustment and/or pitch adjustment of a wind turbine (100), to an adjustment device, to a pitch adjustment device (200), to an azimuth adjustment device (300), to a wind ...  
WO/2018/157896A1
The invention relates to a method for monitoring performance of a multi-rotor wind turbine. According to the method parameter for each of the wind turbine modules of the multi-rotor wind turbine is obtained. The parameters of each of the...  
WO/2018/157897A1
The invention relates to a method for testing yaw system operation of a multi- rotor wind turbine. The multi-rotor wind turbine comprises a tower with a support structure, at least two wind turbine modules mounted to the support structur...  
WO/2018/153521A1
There is described a method of detecting a hazardous state of operation for a wind turbine (1), the hazardous state of operation being caused by a yaw error, the wind turbine (1) comprising a rotor having a hub which is covered by a spin...  
WO/2018/153591A1
It is described a method of controlling a permanent magnet generator (101), the method comprising: measuring mechanical noise (121) of the generator (101); deriving two quantities (125) indicative of an amplitude and a phase of an undesi...  
WO/2018/153524A1
The invention refers to an arrangement and to a method to detect an oil leakage (LKG) between a first section (S1) of a hydraulic cylinder (HC) and a second section (S2) of the hydraulic cylinder (HC). A movable piston (MP) is arranged b...  
WO/2018/153518A1
Method for load reduction on wind turbine blade pitch bearings It is described a method for adjusting a pitch angle (α) of a rotor blade (5) connected to a rotor (3) of a wind turbine (1), the method comprising: pitching the rotor blade...  
WO/2018/153526A1
It is described a method for controlling wind turbines (103a, 103b, 103c) of a wind park (100, 200) connected to a utility grid (111, 211), in case of a drop of a grid frequency, the method comprising: controlling each of the wind turbin...  
WO/2018/150623A1
Provided is a wind power generation device with which resonating of a wind turbine can be easily avoided. A wind power generation device (1) comprises a wind turbine (100), a rotational speed sensor (7) for detecting the rotational speed...  
WO/2018/149527A1
An arrangement to reduce vortex induced vibrations in a building structure. A building structure is disclosed, comprising an outer surface, whereby a vortex generator is connected to the outer surface of the building structure. The vorte...  
WO/2018/149369A1
A wind generating set, comprising a stand column (1) and a nacelle (2). The nacelle (2) is mounted on the upper end of the stand column (1), and a first electrical energy conversion component (21) is provided within the nacelle (2); a fi...  
WO/2018/145801A1
The invention relates to wind turbine with an auxiliary power supply (APU). The wind turbine further comprises a generator (G), a main converter (MCONV) and a transformer (TR). The generator (G) is connected with the main converter (MCON...  
WO/2018/147765A1
The invention relates to a wind turbine. A wind turbine with a vertical shaft, consisting of a disc on which vanes are uniformly mounted around the entire perimeter so as to be capable of rotating 180°, each vane being in the form of a ...  
WO/2018/145948A1
The invention relates to the rotor brake system of a wind turbine, wherein the brake arrangement is acted on by a hydraulic actuating arrangement having a tank (1), a motor-pump unit (2), at least one actuating cylinder (3), and a line a...  
WO/2018/146069A1
The present invention relates to a wind turbine, comprising a substantially vertically oriented rotation shaft, at least one wing or blade that is attached to said rotation shaft for rotating the shaft when there is a wind force exerted ...  
WO/2018/145715A1
A method for controlling a wind turbine, the wind turbine comprising a wind turbine blade, the method comprising: measuring one or more wind turbine parameters; determining, based on the one or more wind turbine parameters, whether negat...  
WO/2018/145710A1
The present invention relates to control of a wind turbine where nacelle vibration is reduced by use of blade pitching. The nacelle vibrations are reduced based on a position signal of the nacelle. A pitch signal is determined based on t...  
WO/2018/137099A1
Embodiments of the present invention relate to the technical field of the internet of things. Disclosed are a wind power generator set monitoring method and system based on the internet of things. The method comprises: receiving paramete...  
WO/2018/134331A1
The invention relates to a method for rotating the rotor (2) of a wind turbine (1), in particular in still air conditions. The method for rotating the rotor (2) of a wind turbine (1) having a rotor (2) which can rotate about a rotor axis...  
WO/2018/130641A1
This invention relates to a noise reducing device and a wind turbine blade comprises such a noise reducing device. The noise reducing device comprises a number of noise reducing elements projecting from a base part. A plurality of airflo...  
WO/2018/131821A1
The present invention provides an automatic angle-of-attack control wing that always maintains a reference angle of attack with optimum efficiency by automatically controlling the angle of attack of a wing according to changes in the dir...  
WO/2018/130651A1
This invention relates to a noise reducing device, a wind turbine blade comprises such a noise reducing device, a method of retrofitted a noise reducing device, and a method of manufacturing such a noise reducing device. The noise reduci...  
WO/2018/128058A1
[Problem] To provide a wind power generation device that can supply stable electrical power and a hydraulic device used in the wind power generation device. [Solution] A hydraulic device 100A is provided with a plurality of hydraulic pum...  
WO/2018/127261A1
The present disclosure relates to wind turbines, pitch adjustment cylinders for adjusting a pitch angle of a blade of a wind turbine, to methods of assembling pitch adjustment cylinders, and to use of pitch adjustment cylinders in wind t...  
WO/2018/128812A1
Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current p...  
WO/2018/125517A1
A hub assembly permits a rotor portion of a horizontal axis, fluid-driven turbine (e.g., with three or more blades) to teeter relative to a hub shaft. An outer hub member configured to receive turbine blades is permitted to rotate relati...  
WO/2018/121667A1
Disclosed are a method and a system of evaluating operation (100) of at least one wind turbine generator (WTG) (1) in a set of wind turbine generators (WTGs) controlled by at least one controller (20) operating the WTG based on at least ...  
WO/2018/121825A1
The invention relates to a method for controlling a wind turbine to change a power reference Pref from a first power level to a second power level dependent on a comparison of a grid frequency f with a frequency threshold fT. In order to...  
WO/2018/121668A1
Disclosed is a method of evaluating (100) performance of a specific wind turbine generator (WTG) (11) amongst a set of wind turbine generators (WTGs) (23). The method may comprise the following acts: measuring (110) actual power producti...  
WO/2018/122195A1
The invention discloses an apparatus for measuring the torsion between a first point (41) and a second point (42) of a test object (1), said second point being spaced apart from the first point. The apparatus comprises the following: a s...  
WO/2018/116218A1
A method for controlling wind turbine farm level loads by control strategy through site-specific topology effects. The method involves the steps of: providing wind velocity data from wind sensors mounted on the wind turbines, the velocit...  
WO/2018/113862A1
A method and apparatus for estimating a characteristic of a wind turbine electrical signal comprises buffering a sequence of sample values of the wind turbine electrical signal and a sequence of sample times corresponding with the sequen...  
WO/2018/115431A1
The present disclosure relates to a method and system for controlling an operation of a wind farm connected to a grid, the wind farm comprising a plurality of wind turbines, each wind turbine having a local controller, the method compris...  
WO/2018/113871A1
A method of controlling noise produced by a wind turbine is disclosed. The wind turbine comprises one or more component cooling devices, and the method comprises: receiving one or more inputs indicative of noise generated by the one or m...  
WO/2018/113873A1
A method of detecting electrical failures in a wind turbine generator control system is described. The method comprises sending a test pulse through a signal path within the control system and detecting the test pulse once it has passed ...  
WO/2018/114923A1
The invention relates to a method for controlling a wind turbine. The wind turbine has an aerodynamic rotor with rotor blades, the blade angle of which can be individually adjusted, and the rotor can be operated at a variable rotor rotat...  
WO/2018/113889A1
Temperature Control Based on Weather Forecasting Examples are generally directed to techniques for controlling a temperature of a blade, such as a blade in a wind turbine system. One example of the present disclosure is a method of contr...  
WO/2018/109100A1
The invention relates to a method for operating a wind turbine having a rotor and a generator driven by the rotor for generating electrical power, wherein, according to the invention, an adapted rotational speed of the rotor of the wind ...  

Matches 1 - 50 out of 5,707