Optimized shield design for reduction of EMF from wireless power transfer systems

被引：13

作者：

Ahn, Seungyoung ^{[1
]}

Hwang, Chulsoon ^{[2
]}

Park, Hyun Ho ^{[3
]}

机构：

[1] Korea Adv Inst Sci & Technol, Cho Chun Shik Grad Sch Green Transportat, Taejon 305701, South Korea

[2] Samsung Elect Co LTD, Global Prod Technol Ctr, Suwon 443742, South Korea

[3] Univ Suwon, Dept Elect Engn, Hwaseong 445743, South Korea

来源：

IEICE ELECTRONICS EXPRESS | 2014年 / 11卷 / 02期

关键词：

wireless power transfer (WPT); electromagnetic field (EMF); shield design;

D O I：

10.1587/elex.10.20130930

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：

In this paper, we proposed an optimized shield design for electromagnetic field (EMF) reduction from the wireless power transfer (WPT) system. Three different cases of shield design are examined in terms of strength of EMF and mutual inductance, which is directly related to power transfer efficiency. Analysis results show that when using both ferrite and conducting sheets as a shield for transmitter and receiver coils, a leakage magnetic field can be significantly reduced with negligible change in mutual inductance. Additionally, the effects of the conducting sheet's size and thickness on the EMF and the mutual inductance are also examined. Our investigation will be helpful to engineers designing modern WPT systems.

引用

页数：9