Coil Design and Shielding Methods for a Magnetic Resonant Wireless Power Transfer System

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In this paper, we introduce the basic principles of wireless power transfer using magnetic field resonance and describe techniques for the design of a resonant magnetic coil, the formation of a magnetic field distribution, and electromagnetic field (EMF) noise suppression methods. The experimental results of wireless power transfer systems in consumer electronics applications are discussed in terms of issues related to their efficiency and EMF noise. Furthermore, we present a passive shielding method and a magnetic field cancellation method using a reactive resonant current loop and the utilization of these methods in an online electric vehicle (OLEV) system, in which an OLEV green transportation bus system absorbs wireless power from power cables underneath the road surface with only a minimal battery capacity.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2013-06
Language
English
Article Type
Article
Citation

PROCEEDINGS OF THE IEEE, v.101, no.6, pp.1332 - 1342

ISSN
0018-9219
DOI
10.1109/JPROC.2013.2247551
URI
http://hdl.handle.net/10203/203045
Appears in Collection
GT-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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