Investigation on Compensation Topology and Its Parameter Matching Method for Dynamic Wireless Power Transfer System

This paper proposes a novel parameter matching method based on particle swarm optimization (PSO) algorithm for designing the parameters of LCC/S compensation topology for the dynamic wireless power transfer (DWPT) system under full resonance condition of the compensation topology. Firstly, the mathematical model of the compensation topology, which is composed of series inductors, parallel capacitors, and series capacitors on primary side, and series capacitors on secondary side (LCC/S compensation topology), is derived and established. After that, three factors, which are affecting the transmission characteristics of the system in the resonant state, are analyzed theoretically, and then evaluated by simulations. Then, the principles and features of the PSO algorithm are investigated and introduced, from where the proposed parameters matching method by using PSO algorithm is highlighted. Then, the simulations and experimental results are informing that the proposed method is able to efficiently realize the parameter design within the system constraints, and significantly enhance the overall performance of the DWPT system, especially the system stability in case of a reluctant load resistance and a changing coupling coefficient.