A Measurement Coil Based Receiver's Resonant Frequency Tracking Technique for Inductive Power Transfer Systems

被引：0

作者：

Mai R. ^{[1
]}

Ma X. ^{[1
]}

Lu L. ^{[1
]}

Li Y. ^{[1
]}

Fu L. ^{[1
]}

机构：

[1] School of the Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2017年 / 37卷 / 17期

关键词：

Inductive power transfer (IPT); Measurement coil; Resonant condition of receiver; System efficiency;

D O I：

10.13334/j.0258-8013.pcsee.161510

中图分类号：

学科分类号：

摘要：

In order to overcome the drawbacks of the resonant frequency drifting of inductive power transfer (IPT) system due to the tolerance of the components, a measurement coil is parallel mounted with the transmitter coil to measure the phase of receiver current. Then, the phase differences of the transmitter and receiver currents is adopted as the feedback control parameters. Finally, the switching frequency of the inverter is regulated based on the resonant condition of receiver, so that not only the receiver operates under resonant condition but also the voltage gain, output power and the efficiency can be improved under all the circumstances. The control methods with and without the proposed strategy are employed to verified the performance. When the receiver appears inductive with tolerance, the maximum output power and system efficiency of proposed strategy are increased by 144.15W and 1.21%. At the same time, when the receiver appears capacitive with tolerance, the maximum output power and system efficiency of proposed strategy are increased by 245.49W and 1.72%. © 2017 Chin. Soc. for Elec. Eng.

引用

页码：5125 / 5133

页数：8

共 23 条

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