基于γ匹配的磁共振协同工作方式研究

doi:10.19595/j.cnki.1000-6753.tces.180407

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摘要基于四线圈磁共振无线电能传输系统,提出一种磁共振协同工作方式,实现了紧-强耦合协同工作,优化了线圈之间的传输效率。为解决阻抗匹配问题,设计一种具有γ 匹配的谐振线圈,并总结其匹配方法。该谐振线圈的输入阻抗可调,能够与输出阻抗为50Ω 的高频电源和负载阻抗实现良好的匹配。最后搭建一个磁共振协同工作无线电能传输实验平台,实验结果表明该线圈能够准确匹配高频电源的输出阻抗及负载阻抗,在磁共振协同工作方式中有很好的应用,传输效率能在60cm的传输距离下达到40%。另外,本文的线圈设计方法也为中等距离无线电能传输系统的线圈设计提供了新思路。

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关键词 ：协同工作方式, γ, 匹配, 线圈设计, 磁共振耦合, 无线电能传输

Abstract：Based on the four-coil magnetic resonance wireless power transfer system, a magnetic resonance cooperative operating mode is proposed in this paper, which realizes the tight-strong coupling cooperative operating and optimizes the transmission efficiency between coils. In order to solve the impedance matching problem, a resonance coil with γ matching is designed, and its matching method is summarized. The input impedance of the resonance coil can be adjusted to match the output impedance of high-frequency power supply and load impedance. Finally, an experimental platform is established. The experimental results show that the coils can match the output impedance of high-frequency power supply and the load impedance accurately in the magnetic resonance cooperative operating mode, and the transmission efficiency can reach 40% at 60cm. Moreover, the coil design method in this paper also provides a new idea for the coil design of mid-range wireless power transfer system.

Key words： Cooperative operating mode γ matching coil design magnetic resonance coupling wireless power transfer

收稿日期: 2018-03-25 出版日期: 2019-02-15

PACS:	TM15
	TM72

基金资助:国家电网公司科技项目：中距离磁共振无线输电系统的设计与应用技术研究（DG71-16-003）资助

通讯作者: 张献男,1983年生,博士,副教授,研究方向为无线电能传输技术、工程电磁场与磁技术。E-mail: zxshow1983@163.com

作者简介: 魏斌男,1978年生,博士,教授级高级工程师,研究方向为无线电能传输技术、新型传感技术。E-mail: Weibin@epri.sgcc.com.cn

引用本文:

魏斌, 王松岑, 吴晓康, 孟浩, 张献. 基于γ匹配的磁共振协同工作方式研究[J]. 电工技术学报, 2018, 33(zk2): 278-286. Wei Bin, Wang Songcen, Wu Xiaokang, Meng Hao, Zhang Xian. Research on Magnetic Resonance Cooperative Operating Mode Based on γ Matching. Transactions of China Electrotechnical Society, 2018, 33(zk2): 278-286.

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