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WO/2021/156287A1 |
Disclosed is a method of establishing a wake management of a wind farm. The method comprises acts of monitoring one or more wake conditions using one or more sensors from one or more wind turbine generators (WTGs); and establishing a wak...
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WO/2021/155741A1 |
A wind generator blade state of health monitoring apparatus and monitoring method, the monitoring apparatus being mounted on a wind generator tower at a position opposite wind generator blades, and comprising a housing (1), an image acqu...
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WO/2021/157498A1 |
[Problem] In windmill equipment installed on a floating structure, to stabilize the angle between the wind direction and the rotational shaft of a windmill without being affected by rocking of the floating structure and the windmill equi...
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WO/2021/153947A1 |
The present invention relates to an environment-friendly wind power generator having blades provided on a jib of a tower crane to generate power by using wind, the wind power generator also performing wind power generation at the optimum...
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WO/2021/151129A1 |
The invention relates to a device for adjusting the inclination of rotor blades (9) of a rotor, in particular rotors, propellers or turbines of land craft, aircraft or watercraft and also of stationary turbine or fan assemblies, comprisi...
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WO/2021/151643A1 |
It is described a method of mitigating a vibration of a wind turbine (1) not receiving power from to a utility grid (21), the method comprising: receiving power from an energy storage system (13) of the wind turbine (1); utilizing the po...
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WO/2021/149881A1 |
The present invention relates to a tower-type wind power generator and, more specifically, to a tower-type wind power generator having improved power generation performance, the generator driving one generator by means of one shaft rotat...
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WO/2021/148215A1 |
The invention refers to a method for computer-implemented monitoring of a wind turbine (1) comprising a tower (2) and a nacelle (3) which is arranged on top of the tower (2), where an electric generator (4) is disposed within the nacelle...
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WO/2021/150239A1 |
A system and method are provided for controlling a wind turbine. Accordingly, a component of the wind turbine is monitored by at least one sensor of a sensor system. An output is received from the sensor system which indicates a fault wi...
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WO/2021/143991A1 |
A method of operating a wind turbine generator (10) comprising a plurality of blades (12), the method comprising iterating the following steps: comparing an indicated rotor speed with a rotor speed target to determine a rotor speed error...
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WO/2021/143990A1 |
Embodiments herein describe in-plane vibration damping techniques for MR turbines. The MR turbines can include arms that extend from a common tower and support multiple rotors. Because the rotors are disposed laterally away from the towe...
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WO/2021/139862A1 |
A method of configuring a nacelle assembly (6) for operation in a multi-rotor wind turbine system (2), the nacelle assembly (6) being mounted on a mounting point (15) of a support structure (4) of the wind turbine system (2), the method ...
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WO/2021/139863A1 |
A wind turbine comprising: a tower; a first arm extending from the tower; a first rotor- nacelle assembly disposed on the first arm; a first movement sensor disposed on the first arm or on the first rotor-nacelle assembly and arranged to...
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WO/2021/139861A1 |
A control network (54) for a wind turbine system (2), the wind turbine system (2) comprising multiple rotor-nacelle assemblies (6) mounted on a support structure (4), the control network (54) comprising: a respective local network (48) a...
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WO/2021/138500A1 |
An example method comprises receiving historical wind turbine failure data and asset data from SCADA systems, receiving first historical sensor data, determining healthy assets of the renewable energy assets by comparing signals to known...
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WO/2021/136568A1 |
The invention provides a method for stabilising a wind turbine blade (106), the method comprising, attaching (S2) an air blowing arrangement (201) to the blade, detecting (S4) an oscillation of the blade, and operating (S5) the attached ...
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WO/2021/137351A1 |
The present invention relates to a blade noise reduction device which is provided at the trailing edge of a blade to reduce noise generated when the blade rotates. The blade noise reduction device comprises: an attachment part coupled to...
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WO/2021/129907A1 |
A method for controlling tilt moment (10) of a wind turbine (1) is disclosed. One or more wind turbine blades (5) are connected to a blade carrying structure (4) via a hinge (6), each wind turbine blade (5) thereby being arranged to perf...
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WO/2021/129908A1 |
A method of masking tonal noise from a wind turbine, the method comprising: obtaining one or more noise characteristics; determining one or more masking performance variables for multiple reference spectra on the basis of the one or more...
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WO/2021/129906A1 |
A method for controlling yaw of a wind turbine (1) is disclosed. One or more wind turbine blades (5) are connected to a blade carrying structure (4) via a hinge (6), each wind turbine blade (5) thereby being arranged to perform pivot mov...
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WO/2021/121511A1 |
The invention relates to a method for controlling power generation from a power plant (100) which comprises a plurality of power generating units. The method involves setting a maximal allowed power production (Pmax) for each power gener...
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WO/2021/122865A1 |
The invention relates to a method for determining at least one operating parameter of a wind turbine. The determination method comprises creating a digital image of the wind turbine with respect to the at least one operating parameter an...
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WO/2021/119909A1 |
A method for monitoring the health state of a blade root fastener. The method comprises the following steps: acquiring a sequence of an acceleration signal that represents the lateral vibration of a nacelle and a sequence of a rotation s...
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WO/2021/125664A1 |
Provided are a method and a system for controlling wind turbines by adaptively selecting a plurality of wind farm controllers. In a method for operating a wind farm according an embodiment of the present invention, performances of a plur...
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WO/2021/121501A1 |
A method and a device for dampening movement in a multiple rotor (MR) wind turbine located at sea and comprising a tower (2) extending in an upwards direction, a load carrying structure (3, 4) forming a first section (3) and a second sec...
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WO/2021/121506A1 |
A method of determining an orientation of a nacelle of a wind turbine, wherein the nacelle carries a Global Navigation Satellite System (GNSS) sensor, the method comprising: yawing the nacelle between a series of orientations; obtaining ...
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WO/2021/121508A1 |
The present disclosure provides a method for obtaining site data from a power plant within a private network of the power plant, where the power plant comprises one or more wind turbine generators. The method comprises a step of providin...
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WO/2021/121496A1 |
A wind turbine comprising a tower (2) with a tower wall and having at least one nacelle (3) mounted thereon, and a yaw system (1) interconnecting the tower (2) and at least one nacelle (3) is disclosed. The yaw system (1) comprises a yaw...
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WO/2021/121503A1 |
The invention relates to method for damping tower oscillations of a wind turbine with a variable rotor area, the wind turbine comprises a tower, a rotor with one or more rotor blades which are arranged hinged at an adjustable pivot angle...
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WO/2021/125966A1 |
A controller for a floating wind turbine comprising a rotor with a plurality of rotor blades connected to a generator is provided. The controller comprises: an active damping controller for calculating one or more outputs for damping bot...
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WO/2021/121499A1 |
The invention relates to a method for monitoring yawing fault events of a yaw system of a wind turbine. The yaw system comprises one or more actuators for driving the yaw system and a holding system to resist yaw rotation. The yaw system...
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WO/2021/122347A1 |
A method for determining a remaining service life of a wind turbine (10) is disclosed. The method comprises: acquiring loading data by way of at least one load sensor (11, 12, 13, 14, 15) arranged on the wind turbine (10); creating a tem...
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WO/2021/121505A1 |
A method of retrofitting a wind turbine having a tower and a first energy generating unit with a second energy generating unit. The method includes analyzing a first natural frequency of the tower relative to first rated operation freque...
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WO/2021/122194A1 |
The invention relates to a method for computer-implemented monitoring of a wind turbine. The method comprises the steps of: i) obtaining, from a data storage (BD), a plurality of sets of measurement data (MD) of at least two measurement ...
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WO/2021/118488A1 |
The invention is a wind turbine for, in which innovations that increase efficiency and electricity generation capacity are applied to use in the wind energy systems, and it is characterized that it contains the electric machine (1), whic...
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WO/2021/118361A1 |
A blade pitch controller for a wind turbine comprises a nominal control system and a tower feedback loop. The tower feedback loop comprises a filtering system. The filtering system is arranged to control wind turbine blade pitch so as to...
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WO/2021/118043A1 |
The present invention relates to a rotary body for a wind power generator and, more particularly, to a rotary body for a wind power generator, comprising: a support plate installed on the ground in a plate shape such that the amount of g...
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WO/2021/119338A1 |
A supplemental propulsion system for a vehicle may include a Flettner rotor. The Flettner rotor includes a rotatable cylinder mounted on a vehicle, e.g., either horizontally or vertically. An airflow deflector is located on the vehicle a...
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WO/2021/119670A1 |
In order to protect a wind turbine system from over-voltage/rpm, power surges, excess temperature, and/or vibration, one or more of the following improvements is provided: a passive pitch mechanism that causes blades to pitch backwards, ...
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WO/2021/118461A1 |
Disclosed are a method and apparatus for detecting a yaw-to-wind abnormality. The method includes: acquiring a wind direction deviation angle within a specified time period; calculating a power performance index, wherein the power perfor...
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WO/2021/114943A1 |
A yaw braking system of a wind power generator set, which yaw braking system comprises a hydraulic braking system and an electromagnetic braking system, wherein the hydraulic braking system comprises a hydraulic station (16) and a hydrau...
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WO/2021/115702A1 |
The invention relates to a method for operating at least one subscriber in an island network comprising the following steps: coupling at least one subscriber of the island network to a stabilisation controller, determining an impedance b...
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WO/2021/115672A1 |
Locking system for a rotatable mounted unit (3) of a wind turbine (1), comprising at least one locking means (16) adapted to lock and unlock the rotatable mounted unit (3), characterized in that the locking system (2) comprises a first p...
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WO/2021/107284A1 |
The present invention relates to frequency control system and method for a variable-speed wind power generator. According to an embodiment of the present invention, the frequency of a variable-speed wind power generator is controlled on ...
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WO/2021/104589A1 |
A method of controlling a wind turbine is provided, comprising identifying an out-of-vertical load acting in a first direction on the wind turbine. A direction of a wind load acting on the wind turbine is determined. If there is a degree...
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WO/2021/107981A1 |
A plurality of generators provide power to loads, such as loads on a vessel. A skimming device receives and stores skimmed power from the plurality of generators. A battery bank receives the stored skimmed power from the skimming device ...
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WO/2021/104597A1 |
There is provided a method of avoiding edgewise vibrations during a non-operational period of a wind turbine. The method comprises defining a non-operational period for a wind turbine arranged at a specific site, determining expected win...
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WO/2021/098926A1 |
The present invention relates to control of a wind turbine in a stop process where a stop controller is used to pitch the blades at a number of pre-set pitch rates including a first pitch rate and a second pitch rate. The stop controller...
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WO/2021/098925A1 |
The present invention relates to control of a wind turbine in a stop process in response to a rotor stop signal. The rotor stop process comprises the steps of prior to receipt of the rotor stop signal, generating a stored pitch angle sig...
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WO/2021/098923A1 |
A method of retrofitting a wind turbine (10) having a wind turbine tower (12) and a first energy generating unit (14) includes rotating at least a portion of the wind turbine tower (12). The wind turbine tower (12) is secured to a founda...
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