Modeling and Simulation of a New Double Full-Bridge ZVZCS Converter for Beam Supply

In this paper, operational principle of the new double full-bridge ZVZCS converter for the beam supply is presented in detail, and the small signal equivalent model under two operating modes is established considering the parasitic parameters and effective duty ratio of circuit elements. Through the simulation of open loop amplitude-frequency and phase-frequency characteristics of the transfer function, the pole zero, dynamic and steady-state characteristics of the transfer function are analyzed to prove the accuracy of the model, which provides a theoretical basis for the control strategy research of the beam supply.