Detection of the Tuned Point of a Fixed-Frequency LCL Resonant Power Supply

被引：86

作者：

Kissin, Michael L. G. ^{[1
]}

Huang, Chang-Yu ^{[1
]}

Covic, Grant A. ^{[1
]}

Boys, John T. ^{[1
]}

机构：

[1] Univ Auckland, Dept Elect & Comp Engn, Auckland 1142, New Zealand

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2009年 / 24卷 / 3-4期

关键词：

Electromagnetic induction; protection; resonant power conversion; CONVERTER; DESIGN;

D O I：

10.1109/TPEL.2008.2011641

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：

Inductor-capacitor-inductor (LCL) series-parallel resonant networks are commonly employed in inductive power transfer systems as they allow a voltage source inverter to generate a constant ac track current independent of the loading, while also allowing operation at unity power factor. To function correctly the LCL network must be tuned properly since any deviation in the track inductor will cause an unwanted reactive load to be placed on the inverter. This letter demonstrates how a simple frequency sweep at power-ON (at reduced output voltage) can be employed to identify and protect the power supply from track tuning errors that can easily arise at installation.

引用

页码：1140 / 1143

页数：4

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