线圈数量不同的WPT系统等效模型仿真分析

A simulation analysis of the equivalent model of wireless power transmission systems with different numbers of coils

线圈个数的不同对于无线电能传输系统有一定的影响.针对双线圈、三线圈、四线圈无线电能传输系统,构造其基本结构以及等效电路,建立互感模型.分析线圈个数不同时影响无线电能传输系统输出功率和传输效率的因素,并通过Matlab参数仿真,得出影响参数变化时输出功率和传输效率的变化趋势,计算出系统性能最优时所对应的最优系统参数,可为线圈个数不同的无线电能传输系统设计提供参考.

The difference in the number of coils has certain influence on the performance of the wireless power transmission system.For double-coil,three-coil,four-coil wireless power transmission systems,this research constructs their basic structures and equivalent circuits and the mutual inductance model,analyzes what factors affect the output power and transmission efficiency of the wireless power transmission system when the number of coils is different.Through a Matlab simulation model,it has obtained the variations of output power and transmission efficiency,calculated the parameters of the optimal system corresponding to its performance,provided reference for the design of the wireless power transmission system with different numbers of coils.