Design and simulation of ZVS PSFB converter controlled by average current mode

The ZVS PSFB converter controlled by average current mode has the advantages of fast response and strong anti-interference ability, but its structure of control system is complex and the PI regulator is difficult to design. In this paper, the transfer function of the average current mode control system was derived with the small signal model of ZVS PSFB converter, the PI regulator was designed with assignment of zero and pole of transfer function by Bode diagram, the system simulation model was built with combination of component module and phase shift control phase shift control program in Matlab/Simulink environment, and the validity of the design scheme was verified.