Journal of Applied Science and Engineering

Published by Tamkang University Press


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Kaifeng Xue1, Zhonghua Sun  2 and Xiuquan Liu3

1School of Mechanical & Vehicle Engineering, Linyi University, Linyi 276005, P.R. China
2Shandong Bailong Machinery Co., Ltd., Junan County 276600, P.R. China
3School of Mechanical and Electrical Engineering, Foshan Polytechnic, Foshan 528137, P.R. China


Received: March 22, 2018
Accepted: May 8, 2019
Publication Date: September 1, 2019

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Frequency is an important parameter that affects the efficiency of a wireless energy transmitting system. By derivation, an expression is presented which can indicate the relation among efficiency, capacitance and resonant frequency. Be aimed at a simulation model for a loosely coupled transformer, curves of the expression show detuning of the primary circuit will significantly affect system efficiency. Then a frequency tracking module is specially designed to add into a wireless energy transmission system to constitute an experimental platform. Experiments confirm that the frequency tracking module can help the system get higher efficiency which is measured to be 2.527%.

Keywords: Wireless Energy Transmitting, Compensation, Resonant, Frequency Tracking


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