Adaptive adjustment of the blade pitch angle of a wind turbine

Details Adaptive adjustment of the blade pitch angle of a wind turbine Adaptive adjustment of the blade pitch angle of a wind turbine

F - Mech Eng,Light,Heat,Weapons

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F03D 7/04 (2006.01) F03D 1/06 (2006.01) B63H 3/00 (2006.01) B64C 11/30 (2006.01) F04D 29/36 (2006.01)

Patent

CA 2681900

It is described a method of determining the quality of an initial value for a blade pitch angle. The method comprises (a) measuring an initial power captured by a wind turbine (100), while the blade pitch angle has the initial value, (b) changing the blade pitch angle to a first value in a first direction, (c) measuring a first power captured by the wind turbine (100), (d) changing the blade pitch angle to a second value in a second direction being opposite to the first di-rection, (e) measuring a second power captured by the wind turbine (100), (f) calculating a power difference between the first power and the second power, and (g) determining the quality of the initial value based on the calculated power difference. It is further described a control system (130), a wind turbine (100) and a computer program, which are all adapted to carry out respectively to control the above de-scribed method.

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