Multi-port current source type common-ground optical storage complementary system and control method

The invention provides a multi-port current source type common-ground optical storage complementary system. The multi-port current source type common-ground optical storage complementary system comprises a plurality of direct current ports, an alternating current port, a plurality of DC-AC conversion branches, an AC-AC conversion branch and a multi-winding high-frequency transformer. According to the system, the leakage inductance value and the excitation inductance value of the multi-port high-frequency transformer and the capacitance value of the AC-AC conversion branch are designed, so that a hardware-based power decoupling scheme is established, power decoupling between a plurality of direct-current ports and alternating-current ports is realized, and the problem of circulating current between the ports is solved. The invention also provides a control method corresponding to the system, and the working state of the optical storage complementary system is divided into three application scenes of standby, g