Aiming at the problem of voltage/frequency stability caused by the high permeability photovoltaic power generation connected to the grid, the virtual synchronous generator (VSG) strategy, as a control technology that can make photovoltaic power stations actively participate in grid frequency modulation and voltage regulation, has been widely concerned. In this paper, a photovoltaic power plant with energy storage is taken as the research object, and a control strategy for the virtual synchronous generator of a photovoltaic power plant with energy storage links is proposed in this paper. The mathematical models of active-frequency control and reactive-voltage control of the photovoltaic virtual synchronous generator are derived, and the controller and parameters are analyzed. The simulation model of photovoltaic virtual synchronous generator is established in PSCAD/EMTDC environment, and the dynamic process of the active frequency and reactive voltage characteristics of the virtual synchronous generator is simulated. The simulation results verify the correctness of the theoretical analysis and the effectiveness of the proposed control strategy.