Performance Investigation of Capacitive Wireless Charging Topologies for Electric Vehicles

This paper investigates the performance of wireless charging topologies in a Capacitive Power Transfer system (CPT). CPT technology is one of the best Electric Vehicle (EV) wireless charging method, in which electric fields between metal plates used to transfer. To realize high power and long-distance power transfer for Electric Vehicle, double-sided LC, LCL and LCLC compensation circuits were used in this research work. By analyzing and comparing the performance and efficiency of these three topologies a one suitable topology is identified for the compensation circuit to use in MATLAB Simulink. The compensation circuit provides resonances with the coupling capacitance, and increase the voltage level on metal plates.