Electric system peak regulation calculation method suitable for wind power output

The invention relates to an electric system peak regulation calculation method suitable for wind power output. The method is characterized by sequentially comprising the steps that step1, certain n days are selected, and according to wind power output and typical daily loads of the n days, Pearson's correlation coefficients, from r1 to rn, of wind power output data and the typical daily loads of the n days are calculated; step2, according to the calculated Pearson's correlation coefficients from r1 to rn, the minimum Pearson's correlation coefficient ru is selected, and wind power output of the u day is determined as the most obvious typical scene in inverse regulation; step3, the typical scene is subtracted from the typical daily load of the day of the most obvious typical scene in inverse regulation, equivalent load values are obtained through calculation, and the minimum equivalent load value is subtracted from the maximum equivalent load value to obtain the peak-regulation capacity of a power grid. The standby capacity of a wind power plant can be reasonably arranged, and the complex degree of the peak-regulation capacity of the wind power plant is greatly lowered.