CPC F03D 17/00 (2016.05) [F03D 7/0224 (2013.01); F05B 2260/80 (2013.01); F05B 2270/322 (2013.01); F05B 2270/33 (2013.01); F05B 2270/331 (2013.01)] | 13 Claims |
1. A method for detecting a wind gust that affects a wind turbine, wherein the wind turbine comprises two or more blades which are coupled to a connection means so that the blades are essentially arranged in a common plane, the method comprising:
measuring an event that at least one blade is at least partially out of the common plane, thereby obtaining a measurement signal;
providing the measurement signal as a measurement input signal to an evaluation algorithm wherein the evaluation algorithm comprises a likelihood estimation;
providing a reference mean value and a reference standard deviation value, together with the measurement input signal, to the evaluation algorithm;
elaborating a detection result from the measurement input signal, the reference mean value, and the reference standard deviation value using the evaluation algorithm; and
comparing the detection result with a predefined wind gust threshold value to determine if a wind gust is detected.
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