Wind power prediction error identification method

The invention discloses a wind power prediction error identification method. The method comprises the first step of obtaining wind speed data of a wind power plant, a wind speed prediction error and wind power actual measurement data, the second step of conducting preprocessing on all the data obtained in the first step and removing wrong data, the third step of obtaining the mapping relation between wind power and wind speed according to the wind speed data and the wind power actual measurement data obtained after preprocessing in the second step, the fourth step of obtaining division characters of the wind speed prediction error according to the wind speed prediction error data obtained after preprocessing in the second step, and the fifth step of obtaining the relation between a wind speed prediction value and a wind power prediction error average value and the relation between the wind speed prediction value and a minimum wind power prediction error likelihood value according to the mapping relation between wind power and wind speed and the distribution characters of the wind speed prediction error, wherein the mapping relation is obtained in the third step and the division characters are obtained in the fourth step. The wind power prediction error identification method can reduce a generation scheduling error at present.