Pitch control of a wind turbine based position data from position localization sensors
AssigneeGeneral Electric Company
InventorsXu Fu, Bernard P. Landa
Life of this patent
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Abstract
A method for controlling pitching of at least one rotor blade of a wind turbine includes receiving, via one or more position localization sensors, position data relating to the at least one rotor blade of the wind turbine. Further, the method includes determining, via a controller, a blade deflection signal of the at least one rotor blade based on the position data. Moreover, the method includes determining, via a computer-implemented model stored in the controller, a pitch command for the at least one rotor blade as a function of the blade deflection signal and an azimuth angle of the at least one rotor blade.
Claims20
A method for controlling pitching of at least one rotor blade of a wind turbine, the method comprising:
- receiving, via one or more position localization sensors, position data relating to the at least one rotor blade of the wind turbine;
- determining, via a controller, a blade deflection signal of the at least one rotor blade based on the position data;
- and,
- determining, via a computer-implemented model stored in the controller, a pitch command for the at least one rotor blade as a function of the blade deflection signal and an azimuth angle of the at least one rotor blade.
A method for correcting pitch misalignment of at least one rotor blade of a wind turbine, the method comprising:
- receiving, via a controller, a reference pitch angle of the at least one rotor blade;
- rotating the at least one rotor blade to a first pitch angle;
- receiving, via one or more position localization sensors, position data relating to the at least one rotor blade of the wind turbine in the first pitch angle;
- determining, via the controller, a pitch angle offset of the at least one rotor blade based on a difference between the reference pitch angle and the first pitch angle;
- and,
- adjusting the first pitch angle of the at least one rotor blade by the pitch angle offset so as to correct the pitch misalignment.
A system for controlling pitching of at least one rotor blade of a wind turbine, the system comprising:
- one or more position localization sensors for generating position data relating to the at least one rotor blade of the wind turbine;
- a controller communicatively coupled to the one or more position localization sensors, the controller configured to perform a plurality of operations, the plurality of operations comprising:
- receiving the position data relating to the at least one rotor blade of the wind turbine;
- determining a blade deflection signal of the at least one rotor blade based on the position data;
- and,
- determining a pitch command for the at least one rotor blade as a function of the blade deflection signal and an azimuth angle of the at least one rotor blade.
Dependencies are inferred from the claim text.