Design Considerations for Variable Coupling Lumped Coil Systems

被引：48

作者：

Huang, Chang-Yu ^{[1
]}

James, Jason E. ^{[2
]}

Covic, Grant A. ^{[2
]}

机构：

[1] Qualcomm, Auckland 1142, New Zealand

[2] Univ Auckland, Dept Elect & Comp Engn, Auckland 1001, New Zealand

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 02期

关键词：

Ac-dc power conversion; power electronics; power generation; power supplies; reactive power; rectifiers; resonant power conversion; switched-mode power supplies; switches; switching circuits; topology; variable coupling; T RESONANT CONVERTER; POWER;

D O I：

10.1109/TPEL.2014.2311818

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：

This paper investigates the impact of coupling variations and reflected impedance in an inductive power transfer (IPT) lumped coil system on the overall system behavior. It offers a process to quantify these variations and design the resonant networks to minimize these effects. An analytical analysis of the reactive power flow between the secondary and the primary power supply in this system is presented and validated by simulation and measurement. A 1.2-kW battery charging system consisting of an LCL primary network, circular pads, and a series tuned secondary is designed. It provides an example of how correct selection of the resonant networks provides minimal burden on the primary power supply due to the additional reactive power demands resulting from mistuning under variable coupling conditions.

引用

页码：680 / 689

页数：10

共 30 条

[1] Analysis and design of an LCL-T resonant converter as a constant-current power supply [J].