磁耦合谐振式无线电能传输系统最大功率效率点分析与实验验证

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摘要针对在磁耦合谐振式无线电能传输系统中频率偏移是否会对负载接收电能的最大功率和效率点产生影响的问题,综合考虑线圈谐振频率、耦合因数、电源和线圈内阻,利用互感耦合理论对电能传输系统进行建模分析,给出系统传输功率和效率的计算方法,得出了过耦合范围内随着频率分裂最大功率点和最大效率点的不一致性的结果。最后设计了基于磁耦合谐振技术的无线电能传输装置,实验结果与理论分析具有较好的一致性,证明了理论分析的正确性,也为进一步研究频率跟踪及其优化控制提供了有益的参考。

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	李阳
	张雅希
	杨庆新
	闫卓
	张献
	薛明
	杨晓博

关键词 ：无线电能传输, 磁耦合谐振, 最大功率点, 最大效率点

Abstract：In order to confirm whether the frequency offset will influence the maximum power or efficiency of load in wireless power transfer system via coupled magnetic resonances, resonant frequency of the coil, coupling factor, resistance of power and coil were considered comprehensively to model and analyze the power transfer system by mutual inductance coupling theory. the calculation method to transfer power and its efficiency was proposed and then the result of inconsistency on maximum power and efficiency in case of overcoupling with the frequency offset was given. In the end, experiment device was designed and experimental results were well consistent with the theoretical analysis, which shows the right of the proposed method and its result. Thus provides an useful reference for the further research on frequency tracking and its optimization control in wireless power transfer system.

Key words： Wireless power transfer coupled magnetic resonances maximum power maximum efficiency

收稿日期: 2014-05-04 出版日期: 2016-03-03

PACS:

TM72

基金资助:国家自然科学基金（51577133、51207106、51477117、51307007、51307120）、天津市应用基础及前沿技术研究计划（自然科学基金）联合资助一般项目（15JCYBJC46700）、天津市科技支撑计划（15ZCZDGX00980）资助项目

通讯作者: 张雅希女,1987年生,硕士研究生,研究方向为无线电能传输理论与应用; E-mail: yxzhang_yxzhang@163; com

作者简介: 李阳男,1979年生,博士,副教授,研究方向为无线电能传输理论与应用。E-mail: liyang@tjpu.edu.cn

引用本文:

李阳, 张雅希, 杨庆新, 闫卓, 张献, 薛明, 杨晓博. 磁耦合谐振式无线电能传输系统最大功率效率点分析与实验验证[J]. 电工技术学报, 2016, 31(2): 18-24. Li Yang, Zhang Yaxi, Yang Qingxin, Yan Zhuo, Zhang Xian, Xue Ming, Yang Xiaobo. Analysis and Experimental Validation on Maximum Power and Efficiency in Wireless Power Transfer System via Coupled Magnetic Resonances. Transactions of China Electrotechnical Society, 2016, 31(2): 18-24.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I2/18

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