Patent ID: 9217415
Filing Date: 2015-12-22
Classification: F03D,F05B,Y02E

Abstract:
1. A method for determining a wind property of a wind approaching a wind turbine, comprising: emitting, with at least one emitter, radiation to a plurality of distinct positions, wherein the radiation is emitted with predefined distinct values of a predefined radiation property for each of the plurality of distinct positions, and the predefined radiation property comprises at least one of: an intensity, a pulse length, a pulse shape, a pulse frequency, and a pulse size, wherein the plurality of distinct positions include either multiple positions in a rotor plane or multiple range gates; detecting, with at least one detector, the radiation backscattered by aerosol particles in the wind disposed at the plurality of distinct positions, wherein the detecting radiation backscattered from the plurality of distinct positions comprises detecting the backscattered radiation based on the predefined distinct values of the radiation property for each of the plurality of distinct positions; determining, with a processor, a wind property for each of the plurality of distinct positions based on the detected radiation; determining, with the processor, the wind property of the wind approaching the wind turbine based on the wind property of wind determined for at least two of the plurality of distinct positions; and transferring, with the processor, the determined wind property of the wind approaching the wind turbine to a controller of the wind turbine.