针对导轨式动态无线电能传输(Wireless Power Transfer, WPT)系统的传输功率和效率优化问题,提出双激励单元的无线电能传输(Dual-Excitation Units Wireless Power Transfer,DEU-WPT)方法,有效克服了在大功率系统中电力电子器件需要承受较大电流电压应力的问题,同时分析了不同拓扑和动态互感变化下的输出特性。本文分析了双逆变发射结构系统的工作原理和等效电路模型,讨论了参数的变化对系统的影响,并与传统使用的无线电能传输系统结构进行比较,通过仿真得到最优设计并搭建实验平台验证了方法的可行性。

Aiming at the optimization problem of the transfer power and efficiency of the rail-type dynamic wireless power transfer (Wireless Power Transfer, WPT) system, a dual-excitation unit wireless power transfer (DEU-WPT) method is proposed, which effectively overcomes the problem of the power electronic devices in the power system need to withstand large current and voltage stress. At the same time, the output characteristics under different topologies and dynamic mutual inductance changes are analyzed. This paper analyzes the working principle and equivalent circuit model of the dual inverter transmitting structure system, discusses the influence of parameter changes on the system, and compares it with the traditional wireless power transmission system structure. The optimal design is obtained through simulation and the experiment is set up. The platform verifies the feasibility of the method.

TM724