Thermal power storage primary frequency modulation capacity method based on VSG control system

The invention provides a thermal power storage primary frequency modulation capacity method based on a VSG control system, and the method comprises the steps: obtaining a transfer function between the energy storage output of an energy storage unit and the frequency variation under a frequency modulation working condition, solving the transfer function, obtaining a response type corresponding to the active power response in a VSG frequency modulation process according to a solved feature root, and obtaining the primary frequency modulation capacity of the VSG. And according to the response type, analyzing hybrid energy storage active output and energy required to be configured by the energy storage unit under the response type, and generating configuration information of primary frequency modulation of the thermal power generating unit according to the hybrid energy storage active output and the energy required to be configured by the energy storage unit. According to the method, the hybrid energy storage tec