Abstract: With the increasing proportion of wind power in power system, large-scale wind power grid connection has an impact on the active power balance of traditional power system, resulting in system frequency deviation, which poses a serious threat to the security of power system. The need to maintain the frequency stability of power system is becoming more and more urgent. Aiming at the primary frequency modulation method of power system under the background of wind power grid connection, the influence of large-scale wind power grid connection on the traditional primary frequency modulation method of power system is analyzed. Then, on this basis, the control methods, basic principles and characteristics of wind turbine rotor dynamic energy control, power standby control and new additional energy storage system control participating in primary frequency modulation of power system are studied and expounded. Finally, the research contents of primary frequency modulation of power system under the background of combined participation of wind storage in high permeability wind power are prospected.