朱慧敏,苑舜,李春来.含储能环节的光伏电站虚拟同步发电机控制策略与分析[J].电测与仪表,2023,60(5):45-50. Zhu Huimin,Yuan Shun,Li Chunlai.Control strategy and analysis of virtual synchronous generator of photovoltaic power plant with energy storage link[J].Electrical Measurement & Instrumentation,2023,60(5):45-50.
含储能环节的光伏电站虚拟同步发电机控制策略与分析
Control strategy and analysis of virtual synchronous generator of photovoltaic power plant with energy storage link
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.
