The system is compact, compact, highly integrated, and easy to configure, making it suitable for a wide range of environments. It has a variety of working modes, such as low voltage at the end, heavy overload in the station area, peak shaving and valley filling, new energy access, etc. The three-phase four-bridge arm topology can realize independent decoupling control when connected to the grid to meet different load requirements. The system is equipped with advanced islanding effect detection, reactive power compensation and isolated network independent operation functions to ensure stable operation. There is no need for manual attendance, and the maintenance cost is low. At the same time, it has strong scalability and supports multi-machine parallel connection, providing flexibility and convenience for energy management.