Method, system and equipment for calculating effective wind speed of rotor

The invention discloses a method for calculating the effective wind speed of a rotor, and the method comprises the steps: obtaining wind measurement data measured at each measurement point, and carrying out the preprocessing of the wind measurement data, and obtaining sight line wind speed data; establishing a linear shearing wind field model; utilizing the linear shearing wind field model to calculate wind field characteristic parameters of a measurement plane where each measurement point is located according to the sight line wind speed data; and calculating the effective wind speed of the rotor according to the wind field characteristic parameters of each measurement plane. The effective wind speed of the rotor obtained by the invention is more timely, and the problem of measurement time lag does not exist; and meanwhile, the accuracy of the effective wind speed of the rotor is greatly improved, the maximum wind energy tracking of wind turbine generation is facilitated, reliable control parameters can be p