Duty ratio compensator techniques for bidirectional charger

In this paper, we implement a non-time-varying duty ratio transfer function for Improvement of control characteristics in the system that input voltage and output voltage variable as bi-directional charger DC/DC converter. Using designed by the existing controller design gain are variable control characteristics in accordance with the input voltage fluctuation. Each benefit of the voltage controller multiplied by the reciprocal the of the duty ratio change. It is a way that duty ratio can be removed equivalently. non-time-varying duty ratio transfer function for bi-directional charger DC/DC converter is applied to simulation and experimental results using PSIM validity and superiority is verified.