Research on Bidirectional DC/DC Converter Based on Passive Control

In order to improve the response speed and dynamic performance of bi-directional DC/DC converter, a passive controller is used to control the bi-directional DC/DC converter in electric vehicle. Based on its working characteristics, an EL model of bi-directional DC/DC converter is established to verify the passivity of the system, and then passive controller is designed. By using MATLAB/Simulink to simulate, the performance of the system controlled by passive controller and PI controller is analyzed and compared, the results show that passive controller has better control effect, and the scheme that passive controller applied in bidirectional DC/DC converter is feasible.