Study on Bidirectional PWM Converter Considering Robustness of PR Controller for V2G Application

The Vehicle to Grid (V2G) technique application is to adopt charging or discharging of electric vehicle (EV) to compensate the fluctuation of power grid, and to return the excess power to grid for peak trough regulation, that EV is not just as traditional power consumer. The bidirectional power converter with high power density and well power quality is required for V2G application. The influence of characteristics with its stability generated through proportional resonant (PR) regulator was discussed. Experimental results illustrated its feasibility and correctness for V2G bidirectional energy flow, and the optimized control system obtained zero steady-state error tracking with well dynamic response.