High Q Coil Measurement for Inductive Power Transfer

被引：19

作者：

Lawson, James ^{[1
]}

Yates, David C. ^{[2
]}

Mitcheson, Paul D. ^{[2
]}

机构：

[1] STFC Daresbury Lab, Nucl Phys Grp, Warrington WA4 4AD, Cheshire, England

[2] Imperial Coll London, Elect & Elect Engn Dept, Control & Power Res Grp, London SW7 2AZ, England

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2019年 / 67卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

Capacitance; coil measurement; inductance; inductive power transmission; Q-factor; wireless power; EFFICIENCY;

D O I：

10.1109/TMTT.2019.2901442

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A system for the measurement of quality factors, self-inductances, and interturn capacitances of inductive power transfer coils, in the frequency range of 1-20 MHz, is demonstrated. Coil quality factor in excess of 1000 is measured at megahertz frequencies, beyond the capabilities of commercial impedance analyzers. The method used is to measure the transmission bandwidth of the coil under test while under weak magnetic coupling, incorporating measures to reduce common-mode coupling. The measurement system is verified by comparison with electromagnetic simulation and by modeling. The system model shows robustness to system configuration and the potential to measure coils with Q in excess of 10000.

引用

页码：1962 / 1973

页数：12

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