Comparison of Tripolar and Circular Pads for IPT Charging Systems

被引：66

作者：

Kim, Seho ^{[1
]}

Covic, Grant A. ^{[1
]}

Boys, John T. ^{[1
]}

机构：

[1] Univ Auckland, Dept Elect & Comp Engn, Auckland 1010, New Zealand

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2018年 / 33卷 / 07期

关键词：

Coupling circuits; electromagnetic coupling; magnetic circuits; magnetic resonance; INDUCTIVE POWER TRANSFER; DESIGN CONSIDERATIONS; TRANSMISSION; TOPOLOGIES; COUPLER;

D O I：

10.1109/TPEL.2017.2740944

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：

Recently, a magnetic pad called the tripolar pad (TPP) has been introduced for inductive power transfer (IPT) systems. This paper evaluates the effective coupling factor and leakage magnetic field of a 20-kW IPT system that uses a combination of TPP and circular pad (CP) topologies over a range of lateral displacements. The results show that the effective coupling factor and the leakage magnetic field of the TPP-TPP system are substantially better when the secondary is displaced away from ideal alignment. Leakage magnetic field is reduced up to 43% compared to the CP-CP system at the worst-case misalignment, which is due to the ability of the TPP-TPP system to generate and capture different types of magnetic field shapes. Simulation methods for both the TPP and CP are validated in the laboratory using a 2-kW system operating at 85 kHz.

引用

页码：6093 / 6103

页数：11

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