Wireless Power Transfer System For Electric Vehicle Charging

Wireless charging of Electric Vehicles (EV) is a trending research topic. In this paper, a wireless power transfer system (WPTS) is designed and a prototype is built to analyze the wireless charging process. A first analysis is made on the operating principles of wireless power transfer supported on the state of the art of currently used technologies. A Resonant Inductive Power Transfer (RIPT) charging system is selected as the best candidate for a prototype model based on physical and power demands. A controller for the RIPT is proposed along with the sizing of the power converter and compensation networks. Simulation results are obtained, and a prototype is built to scale. Experimental tests are carried out to validate the proposed topology and controller. The obtained waveforms are analyzed, and conclusions are drawn regarding the resonant inductive charger’s overall performance.