Parallel high-power high-frequency switching power supply system

The utility model relates to a parallel high-power high-frequency switching power supply system, belonging to the technical field of switching power supplies. The utility model aims to enhance the output performance. The system comprises an upper computer, a remote control box and a plurality of switching power supply units, wherein each switching power supply unit comprises a microprocessor, a sampling module, an RS485 communication module, a CAN (Controller Area Network) communication module, a rectifier circuit, a switching circuit, a variable frequency transformation circuit and a filter impedance circuit; the sampling module, the RS485 communication module and the CAN communication module are connected with the microprocessor; the rectifier circuit, the switching circuit, the variable frequency transformation circuit and the filter impedance circuit are sequentially connected with each other; a variable frequency signal output end of the microprocessor is connected with a variable frequency control end o