Integrated Dynamic Bidirectional Roadways EV Power Transfer System

Abstract

One of the limitations for adoption of Electric vehicles (EVs) is the apprehension around the limited driving range. Proposed systems have explored charging EVs on the move, using dynamic wireless charging which able to provide power exchange between the vehicle and the grid in moving condition. This paper presents a novel replication method for electric vehicle (EVs) charging through wireless power transmission (WPT) system. With the proposed technique, the wireless charging system can use the most efficient coil to transmit power at the EVs by using transformer principle. To provide the optimal charging, our approach includes measurement of the transfer efficiencies of transmitting and receiving coil, to determine the most efficient one to use. The proposed system provides not only increase in charging performance, but also have much higher efficiency, low transmission cost.