A modified hybrid multi-level converter for high-power high-frequency IPT systems

IPT technology has been increasingly used in EV charging systems. However, fast charging using IPT technology is still a concern due to high-power high-frequency operation. This paper presents a low cost modified MOSFET-IGBT multi-level converter that is suitable for high power and high frequency IPT systems. The proposed converter with a reduced number of switches can be employed on both sides of IPT systems to generate high track currents that are necessary for high power applications. The performance of the converter is investigated through comparison of the simulated model under various operating conditions. The simulate results, compared with a conventional hybrid multi-level topology, clearly show that the conduction losses and the cost of materials are reduced in the proposed converter.