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Author

Kim, Jingook
Integrated Circuit and Electromagnetic Compatibility Laboratory (IC & EMC Lab)
Research Interests
  • Convergence between circuit and EM domains

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Design and analysis of a resonant reactive shield for a wireless power electric vehicle

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Title
Design and analysis of a resonant reactive shield for a wireless power electric vehicle
Author
Kim, SeonghwanPark, Hyun-HoKim, JonghoonKim, JingookAhn, Seungyoung
Keywords
Electric vehicle; electromagnetic compatibility (EMC); electromagnetic field; electromagnetic shielding; wireless power transfer (WPT)
Issue Date
201404
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.62, no.4, pp.1057 - 1066
Abstract
In this paper, we propose the concept and design methodology for a resonant reactive shield for the reduction of magnetic field leakage from a wireless power transfer (WPT) systems. By using LC resonance, the reactive shield can generate a cancelling magnetic field to reduce the incident magnetic field from WPT coils and effectively reduce the total magnetic field without consuming additional power. The shielding effectiveness of the resonant reactive shield and its effect on WPT efficiency are analyzed with simulation and measurements. For practical application to wirelessly charged electric vehicles, an automatic tuning system for the resonant reactive shield is also proposed and implemented. The effectiveness of a resonant reactive shielding is verified by experiments in a wirelessly charged electric bus.
URI
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DOI
http://dx.doi.org/10.1109/TMTT.2014.2305404
ISSN
0018-9480
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ECE_Journal Papers

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