A Stable Charging Method for Electric Vehicles Based on Composite Topology

With the emergence and popularization of new energy vehicles, the rigid demand for car charging has surged, and the charging pile, as the infrastructure of electric vehicle charging, is crucial to the basic demand for stable charging. This includes the power stability of the charging pile and the stability of the current and voltage output to ensure that the electric vehicle can obtain continuous and stable electric energy during the charging process. This paper proposes a composite topology of wireless charging, which can realize stable power output of charging pile and ensure stable power supply of charging pile. With the change of coil parameters, the proposed system can stably output 1000 W, and the output power remains relatively constant. The rationality of the system is verified by simulation.