The system is designed in a standard container for easy transport and installation, while performing well in outdoor environments. It has a variety of working modes, including reactive power compensation and isolated grid independent operation function, as well as microgrid independent inverter function, which improves the flexibility and adaptability of the system. Equipped with a three-level BMS management system to fully guarantee the safety of the system. In line with the smart grid design specifications, it can accept power grid dispatching and realize interconnection with the power grid. The advanced islanding effect detection technology can detect and deal with the islanding effect in time to ensure the stable operation of the system.