基于三维电磁仿真软件的无线充电耦合机构建模与仿真研究

针对电动汽车无线充电技术，考虑发射线圈和接收线圈发生径向偏移的情况，基于两线圈结构的串串型拓扑，通过三维电磁仿真软件Maxwell来对比圆形、矩形和DD型线圈的抗偏移性能。通过添加磁芯和铝板等对所选线圈进行优化设计。借助Maxwell和Simplorer实现联合仿真，验证该无线电能传输系统设计的可行性。在两线圈间发生偏移的情况下，为实现无线电能传输系统的传输效率达到95%以上的目标，给出了一种基于线圈比较选择的磁耦合机构设计流程，并根据流程设计了切实可行的无线电能传输系统。通过试验验证了该系统的可行性。

Research on Modeling and Simulation of Wireless Charging Coupling Mechanism Based on 3D Electromagnetic Simulation Software

For the wireless charging of electric vehicles, considering the radial offset of transmitting coil and receiving coil, based on the series topology of two coil structures, the anti-offset performances of circular, rectangular and DD coils are compared by 3D electromagnetic simulation software Maxwell. The selected coil is optimized by adding magnetic core and aluminum plate. Joint simulation is realized with the help of Maxwell and Simplorer to verify the feasibility of the design of the wireless power transmission system. In the case of offset between the two coils, to achieve the transmission efficiency of the wireless power transmission system of 95% and above, a design process of magnetic coupling mechanism based on coil comparison and selection is given, and a practical wireless power transmission system is designed according to the process. Finally, its feasibility is verified through experiments