Research on 6V/5KA High Power HIGH Frequency Switching Power supply

The traditional high power high frequency switch is improved. The space vector PWM control strategy is adopted in the front phase three-phase PWM rectification. The fast tracking of power grid current and the efficient operation of the system is realized. The rear stage DC/DC adopts phase-shifting full-bridge soft switch technology to realize zero voltage opening. Aiming at the problem of parallel equalization of two switching power supplies, the self-equalization control method of virtual impedance is adopted and improved on its basis to realize the stable operation of equalization of two 6V/SKA power supplies. The correctness of the proposed structure and control method is verified by simulation.