磁耦合共振单发双收系统传输特性分析

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Abstract In order to study on the situation that there is an energy sender to provide energy for multi-loads in electrical equipment and weapons systems applications, the circuit model of wireless power transmission system is established based on the theory of magnetic resonant coupling, and the expression of transmission power and transmission efficiency are derived. Theoretical analysis shows that the transmission characteristics of “single-emission and double-receiving system” is similar to the nature of “single-emission and single receiving system”. Resonance frequency bifurcation was existed in the system when the coupling coefficient between the transmitting and receiving coils is large, and frequency bifurcation phenomena gradually disappears with the distance of the two coils increasing. The resonance frequency is varied with the changes in the radial distance when there are two receiving coils, and the more offset, the more obvious. The transmission characteristics of this system are researched by OrCAD simulation software and experiments. The results show that theoretical analysis is consistent with simulation analysis and experiments, and the theoretical model which is built in the paper can accurately describe the transmission characteristics of the system.

Key words： Magnetic resonance coupling multi-loads frequency bifurcation wireless power transmission

Received: 30 May 2013 Published: 18 June 2014

PACS:	TM724
	TN919

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	Li Weixin
	Zhang He
	Li Changsheng
	Ding Libo

Cite this article:

Li Weixin,Zhang He,Li Changsheng等. Analysis of Transmission Characteristics of Single-Emission and Double-Receiving System Based on Magnetic Resonant Coupling[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 191-196.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I2/191

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