无线电能有效传输距离及其影响因素分析

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Abstract To improve the effective range between transfer and receiver coils and to reduce its volume is one of the key and difficult problems in wireless power transfer system. In this paper, the characteristic of frequency of wireless power transfer based on the coupling model of two spatial isolated coils is analyzed, and yielded the relationship among normalized voltage in the receiver coils. Further more, the conception of effective range of wireless power transfer is proposed. Then the maximum transfer range and its impact factors are analyzed which obtains the way to optimize the design of self-resonance coupling coils. In the end, equivalent circuit model is designed and experimental results are well consistent with the theoretical analysis, which shows the right and effectiveness of the proposed method. Thus provides an useful reference for improving the wireless power transfer range and the transfer or receiver coils optimization designing.

Key words： Wireless power transfer coupled magnetic resonances effective transfer range characteristic of frequency impact factors

Received: 15 June 2011 Published: 27 November 2013

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TM72

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	Li Yang
	Yang Qingxin
	Yan Zhuo
	Zhang Chao
	Chen Haiyan
	Zhang Xian

Cite this article:

Li Yang,Yang Qingxin,Yan Zhuo等. Analysis on Effective Range of Wireless Power Transfer and Its Impact Factors[J]. Transactions of China Electrotechnical Society, 2013, 28(1): 106-112.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I1/106

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