超声波无线电能传输系统电气建模方法（英文）  

Electrical Modeling of a Wireless Ultrasonic Power Transfer System

作　　者：Leung Ho Fai 戴欣[2] 呼爱国 

机构地区：[1]奥克兰大学电气与计算机工程系 [2]重庆大学自动化学院,重庆400030

出　　处：《电工技术学报》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)

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.

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 

分 类 号：TM315[电气工程—电机]