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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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

Received: 30 November 2011 Published: 25 March 2014

PACS:	TM154
	TM46

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	Articles by authors
	Huang Xueliang
	Ji Qingjing
	Tan Linlin
	Wang Wei
	Zhao Jiaming
	Zhou Yalong

Cite this article:

Huang Xueliang,Ji Qingjing,Tan Linlin等. Study on Series-Parallel Model of Wireless Power Transfer via Magnetic Resonance Coupling[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 171-176.

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

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