Wind power plant primary frequency modulation field level control method and device for multiple types of fans

The invention discloses a wind power plant primary frequency modulation field level control method and device for multiple types of draught fans in the field of wind power generation. The method comprises the steps that the frequency deviation of a wind power plant is calculated according to the obtained grid-connected point frequency and the power grid rated frequency; if the frequency deviation of the wind power plant exceeds the dead zone range, calculating the primary frequency modulation regulation power of the wind power plant, and performing equal margin distribution on the primary frequency modulation regulation power of the wind power plant to each energy management platform according to the rated capacity of each energy management platform; in response to the fact that the energy management platforms conduct fan control adjustment according to the received primary frequency modulation adjustment power, the adjusted power of all the energy management platforms in the adjustment period is calculated a