Dynamic wireless charging system for electric vehicles analysis of magnetic coupling structure

Given how quickly the electric vehicle market is expanding, the existing charging facilities are in short supply. Wire charging technology has the disadvantages of being inflexible, inefficient, and occupying a lot of space. In order to adapt to the current development status, wireless charging technology has been proposed. Depending on the application scenario. It is split into static wireless charging and dynamic wireless charging. Due to the existence of inductive impedance in the circuit during the energy transmission process, which reduces the power factor, it is necessary to introduce compensation topology. In contrast to static wireless charging, dynamic wireless charging technology pays more attention to the stability of the output. This article focuses on dynamic wireless charging technology, outlines four types of compensation topology structures in wireless charging systems, and based on these four structures, discusses the lasting current and lasting voltage output of LCC-LCL and LCC-LCC/S type topology structures. It analyzes the impact of the selection of the transmitter end compensation inductance value on the output characteristics, in order to achieve a high power yet efficient wireless energy transmission method.