A LCL-LCL Topology for Odd Harmonic Magnetic Fields Reduction in Over-Coupled WPT System

The paper proposed a LCL-LCL topology for reduction of odd harmonic magnetic fields in over-coupled WPT system. The LCL-LCL topology has a simple structure of adding inductors in series to the conventional series-series (SS) topology. The proposed topology has higher input impedance at odd-harmonic frequencies than the conventional one, resulting in small harmonic currents and magnetic fields. The effectiveness of the proposed topology is proven by simulation and experiments.