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
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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