Integrated Wired/Wireless Charging System for Electrical Vehicles With Resonant Frequency Tuning Function

In this letter, an integrated wired/wireless charging topology is proposed to expand the adaptability of the electric vehicle charging stations and further improve the utilization of the charging facilities and venues. By reusing the common structures in the independent wired and wireless charging topologies, on the basis of achieving the wired and wireless charging functions, the integration of charging facilities is improved, and its cost is reduced. Based on the isolated converter in the wired mode, a frequency tuning strategy in the wireless mode is proposed to overcome the frequency detuning problem caused by the parameter fluctuations. The feasibility and practicability of the proposed topology and the frequency tuning strategy are verified by the experiments.