Sliding mode control of bidirectional DC/DC converter

In order to improve the dynamic response and anti-interference ability of the system, a sliding mode control method for a fixed frequency bidirectional DCDC converter is proposed in this paper. The sliding mode of Buck mode and Boost mode is established in Simulink with voltage and current as control volume respectively, and the simulation results of PI control are compared. The effectiveness of the sliding mode algorithm is verified. It is proved that the sliding mode system has good robustness and fast dynamic response.