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Modeling of Mutual Inductance Between Two Misalignment Planar Coils in Wireless Power Transfer
IEEE Microwave and Wireless Components Letters ( IF 3 ) Pub Date : 2020-08-01 , DOI: 10.1109/lmwc.2020.3006211
Libo Qian , Mengfei Chen , Kexue Cui , Ge Shi , Jian Wang , Yinshui Xia

Mutual inductance is an important parameter for the design and optimization of the wireless power transfer (WPT) system. In this letter, a compact analytical model for mutual inductance of two coupled planar coil is proposed. The model is derived from Neumann’s integral of constant current-carrying filament with a Taylor expansion approach. It can predict mutual inductance at various lateral and angular misalignments. The analytical results show a good agreement with the 3-D electromagnetic simulation results, and the maximum error for the mutual inductance remains less than 15.1%. An experimental setup has been built, and the results reveal the proposed model can predict the mutual coupling rapidly and effectively.

中文翻译:

无线电力传输中两个未对准平面线圈之间的互感建模

互感是无线电力传输 (WPT) 系统设计和优化的重要参数。在这封信中,提出了两个耦合平面线圈的互感的紧凑解析模型。该模型源自于采用泰勒展开方法对恒流灯丝进行 Neumann 积分。它可以预测各种横向和角度不对中的互感。分析结果与3-D电磁仿真结果吻合良好,互感的最大误差保持在15.1%以内。已经建立了一个实验装置,结果表明所提出的模型可以快速有效地预测相互耦合。
更新日期:2020-08-01
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