Coordinated Control Method of Power Oscillation Suppression for Multi-Parallel Synchronous Generator with Distributed Photovoltaic-Storage System

In order to effectively suppress the negative impact of the randomness and indirectness of photovoltaic output on the power grid, and improve the friendliness of the grid-connected photovoltaic-energy storage system, the coordinate control strategy of the distributed photovoltaic- energy storage system in the grid-connected mode has been investigated in depth. A power oscillation suppression method for multi-parallel synchronous inverters based on Virtual Synchronous Generator (VSG) to realize constant power control of Power Conversion System (PCS) and static-difference-free tracking of DC bus. The simulation research is carried out through the Matlab/Simulink platform, and the effectiveness of the control strategy is verified.