A review of DC DC converters for renewable energy and EV charging applications

Abstract

DC-DC converters are integral part of electric vehicles and PV systems. The modifications applied on the configuration in these converters will improve overall performance of the system. This paper present overview of various converter topologies used for renewable and EV charging applications and also put forward the best among that in terms of lesser ripple current and higher efficiency. From the comparison study, a high gain quasi resonant SEPIC converter is considered as the superior one for renewable energy applications. To improve the voltage conversion ratio, it uses a voltage multiplier combined with passive clamp circuit and coupled inductor. The converter is free from power dissipations due to soft switching feature. Thus, the proposed converter can provide higher voltage gain and efficiency.