磁耦合谐振式无线电能传输系统串并式模型研究

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摘要磁耦合谐振式无线电能传输系统具有传输效率高、距离远、功率大的特点。针对串并式模型（Series-Parallel Model, SP）进行分析, 从等效电路的角度研究系统传输效率及输出功率与线圈距离、工作频率、负载电阻之间的关系, 得到效率及功率的表达式。通过Matlab仿真, 发现在只改变系统频率的情况下最佳效率工作频率与最大功率工作频率重合, 且输出功率对频率的变化更为敏感。设计制作了一套串并式结构的磁耦合谐振式无线电能传输系统, 通过实验验证了前述分析的正确性。

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	黄学良
	吉青晶
	谭林林
	王维
	赵家明
	周亚龙

关键词 ：无线电能传输, 磁耦合谐振, 等效电路, 串并式结构

Abstract：Wireless power transmission system via magnetic resonance coupling displays its superiority in its higher efficiency, longer range and greater power output. This paper conducts research on series-parallel (SP) model, by analyzing the effects that the distance between the coils, operation frequency and load resistance may have on the efficiency and the output power from the view of equivalent circuits, and the expression of efficiency and power was obtained. Calculated by the Matlab, the results show that the frequency of the best efficiency point and maximum power point coincide under the condition of changing system frequency only. Compared with the efficiency, the output power is more sensitive to frequency changes. A wireless power transmission system with series-parallel structure via magnetic resonance coupling is designed and created in this paper, and the correctness of the aforementioned analyses is verified through the experimental results.

Key words： Wireless power transfer magnetic resonance coupling equivalent circuit series- parallel(SP) model

收稿日期: 2011-11-30 出版日期: 2014-03-25

PACS:	TM154
	TM46

基金资助:国家自然科学基金（51177011）, 国家科技支撑项目（2011BAA 07B05）和江苏省科技支撑项目（BE2011174）资助

作者简介: 黄学良男, 1969年生, 教授, 博士生导师, 研究方向为无线电能传输研究、新型能源转换装置研究、物理场分析、电能质量评估与治理等。吉青晶男, 1987年生, 硕士研究生, 研究方向为无线电能传输.

引用本文:

黄学良, 吉青晶, 谭林林, 王维, 赵家明, 周亚龙. 磁耦合谐振式无线电能传输系统串并式模型研究[J]. 电工技术学报, 2013, 28(3): 171-176. Huang Xueliang, Ji Qingjing, Tan Linlin, Wang Wei, Zhao Jiaming, Zhou Yalong. Study on Series-Parallel Model of Wireless Power Transfer via Magnetic Resonance Coupling. Transactions of China Electrotechnical Society, 2013, 28(3): 171-176.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I3/171

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