Aiming at the constant current charging and the constant voltage charging mode of the power battery pack in an electric vehicle, this paper proposes a double‐sided LCL variable compensation topology in a magnetically coupled resonance wireless power transfer system. With the proposed topology, the complexity of the circuit design and control will be simplified. The mathematical model for the double‐sided LCL topology is established using a two‐port network, and the output characteristics of constant current mode and constant voltage mode are studied on. By compensation analysis, the double‐sided LCL topology is improved and designed. The specific parameter configuration method and compensation conversion circuit are developed. Load characteristics analysis of variable compensation topology is given. A MATLAB Simulink simulation model and a prototype were built. Both the simulation results and the experiment results show the validity of the proposed variable compensation topology and parameter configuration method. © 2020 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

中文翻译：

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MCR-WPT系统双向LCL可变补偿拓扑的设计与实现

针对电动汽车动力电池组的恒流充电和恒压充电模式，本文提出了一种在磁耦合谐振无线电力传输系统中的双面LCL可变补偿拓扑。利用所提出的拓扑，电路设计和控制的复杂性将得以简化。使用两端口网络建立了双面LCL拓扑的数学模型，并研究了恒定电流模式和恒定电压模式的输出特性。通过补偿分析，改进并设计了双面LCL拓扑。开发了具体的参数配置方法和补偿转换电路。给出了可变补偿拓扑的负荷特性分析。建立了MATLAB Simulink仿真模型和原型。仿真结果和实验结果均表明了所提出的变量补偿拓扑和参数配置方法的有效性。©2020日本电气工程师学会。由Wiley Periodicals LLC发布。