基于散射矩阵的无线电能传输系统电磁耦合效率测量方法的研究

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Abstract Study of the electromagnetic coupling efficiency with wireless power transmission system via electromagnetic resonant coupling. Analysis the power transmission cross pitch logical relationship of the system. Make an equivalent between the system network and the two sub-networks, we could derive the mode of electromagnetic field coupling efficiency with the equivalent for the two sub-network scattering matrix. We propose a measurement method for electromagnetism coupling efficiency of wireless power transmission system based on scattering matrix,we make an experiment to get the S parameter, we use S parameter to calculate the electromagnetism coupling efficiency of wireless power transmission system. The result has the same change rule with transmission of the system. It proves the feasibility and correctness of our method. This method has the advantages such as simple operation, simple measuring steps and instantaneity. It has practical value with analysis and optimization of system efficiency.

Key words： Wireless power transmission electromagnetism coupling efficiency two-port network equivalent scattering matrix

Received: 10 September 2014 Published: 08 September 2015

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	Articles by authors
	Wang Hao
	Wang Anna
	Zhao Qiang
	Hui Guotao

Cite this article:

Wang Hao,Wang Anna,Zhao Qiang等. Research on Electromagnetism Coupling Efficiency of Wireless Power Transmission System Based on Scattering Matrix[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 463-469.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I14/463

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