无线电能传输系统线圈偏移研究综述：分析, 效率提升与定位

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Abstract Coil misalignment often takes place in practical wireless power transfer (WPT) systems, which may cause decrease of transfer efficiency and system instability. This paper analyzes coil-misaligned WPT system with theoretical calculation of mutual inductance and transfer efficiency and simulation. Existing ways to improve system efficiency are hereby discussed. To overcome problems from misalignment, efforts on coil design and impedance network design have demonstrated their feasibility on raising system tolerance with coil misalignment. Current solutions for positioning of WPT coils which could facilitate the parking of Electric Vehicles (EVs) for wireless charging are also presented.

Key words： Wireless power transfer coil misalignment analysis efficiency positioning

Received: 23 May 2013 Published: 22 May 2014

PACS:

TM72

Corresponding Authors: Liao Chenglin

About author:: Yan Maoshui male, born in 1989, graduate student. His main research interest is wireless power transfer. Liao Chenglin male, associate professor, research interest: wireless power transfer and vehicle electronics..

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Cite this article:

Yan Maoshui,Liao Chenglin,Tao Chengxuan等. A Review on Wireless Power Transfer Coil Misalignment: Analysis, Efficiency Improvement and Positioning[J]. Transactions of China Electrotechnical Society, 2013, 28(2增): 1-6.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I2增/1

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