Comparison of Buck-Type DC-DC Converter Design for Electric Vehicle Wireless Charging System Using Railway Power Grid

Abstract

In recent times, discussions have been underway about the use of railway power supply networks of railway station transfer parking lots for electric vehicle (EV) charging facilities. There is a significant advantage in integrating railway transportation with autonomous driving-based vehicle commercialization for wireless EV charging systems applicable to railway station transfer parking lots. However, because of the limited space available in subway station transfer parking lots, a high-density wireless EV charging system must be developed. In this study, the optimal topology for the DC-DC converter, which is a component of the wireless vehicle charging system, was selected through topology design and comparison. Furthermore, the validity of the wireless charging DC-DC converter topology comparison results was verified through experimentation.