摘要
基于等效电路的方法,提出一种适用于超声波无线电能传输系统的电气建模方法。首先采用基本压电方程对压电换能器进行建模,接着推导出系统层面的等效电路模型,并获得系统输出特性。实验结果对所提出的模型进行了验证,实验证明利用一对28 k Hz的压电换能器,该系统能通过5 mm厚的铝板向阻性负载传输2.6 W功率的电能。
This paper presents a theoretical model for a wireless ultrasonic power transfer system in the form of equivalent circuits. Resonant characteristics of the piezoelectric transducers are modeled usingconstitutive piezoelectric equations firstly. Then a system-level equivalent circuit model is developed and analyzed to obtain the system output characteristics. Experimental results verify the proposed model and demonstrate that 2. 6 W electric power can be transferred across a 5 mm thick aluminum plate to a resistive load using a pair of 28 k Hz piezoelectric transducers.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第19期85-89,共5页
Transactions of China Electrotechnical Society
基金
Supported by National Natural Science Foundation of China(51377183,51277192)
关键词
超声波电能传输
超声波
声波能量传输
无线电能传输
Ultrasonic power transfer
ultrasonic wave
acoustic energy transfer
wireless power transfer
作者简介
Leung Ho Fai male, born in 1992, is a PhD candidate at the University of Auckland, New Zealand. His research interests include wireless power transfer technology.
Dai Xin male born in 1978, is currently a professor of Chongqing University. His research interests include wireless power transfer technology. （ Corresponding Author）
