Vienna Rectifier Control Using SPWM and SVPWM for EV Charging Station

Electric vehicles are an evolving technology in today's world that will eventually replace internal combustion engine-powered automobiles in order to mitigate global warming. For Electric Vehicle (EV) charging stations that are connected to the grid, power quality is critical in order to meet IEEE-519 requirements. As a result, for the Fast DC charging application, the Vienna Rectifier is used as a frond end converter. The Vienna rectifier is the best choice for high-power applications because it helps to increase output voltage while reducing ripple and improving current efficiency. In this paper, the control techniques of Sinusoidal Pulse Width Modulation (SPWM) and Space Vector Pulse Width Modulation (SVPWM) are compared and the results are obtained. The Vienna rectifier is used to minimize switching loss and achieve low THD while maintaining unity power factor. The grid side of this rectifier achieves sinusoidal current. It also has fewer switches and is simpler since it uses a unidirectional power flow to pass power from the grid to the EV's battery. MATLAB/SIMULINK is used to analyse and verify both control techniques with the designed Vienna rectifier topology, and the results are compared. The designed rectifier is used in this application for a Level 3 EV charging station with a 30 kW battery load.