基于PZT的超声波无接触能量传输系统的研究

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Abstract In this paper, a system of contactless ultrasonic power transmission based on PZT is presented, and mathematical model is established by mechanical equivalent and analogy method. The acoustic energy transfer theory and some analysis methods are proposed and the model of the system is analyzed, and expression of control coefficient, output voltage to the input voltage and load power are derived. Relations of load impedance to load power and transmission distance to the load power are studied by experiment. When system occurs resonance, transferred energy achieve maximum; when the system parameters and the transmission distance is fixed, the transfer efficiency changed with the load, and that there is a maximum value. Load power and system efficiency decrease with the increase of transmission distance. Theoretical analysis and experimental results show that ultrasonic can be used for contactless energy transfer and get rid of the limitations of acoustic-electric feed-throughs for power transmission and realize contactless energy transmission in a certain range of effective distance.

Key words： Contactless energy transfer resonance gas medium transducer model

Received: 02 March 2011 Published: 07 March 2014

PACS:

TM724

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	Articles by authors
	Zou Yuwei
	Huang Xueliang
	Bai Yang
	Tan Linlin

Cite this article:

Zou Yuwei,Huang Xueliang,Bai Yang等. Research on Contactless Ultrasonic Energy Transfer System Based on PZT[J]. Transactions of China Electrotechnical Society, 2011, 26(9): 144-150.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I9/144

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