Chin. Phys. Lett.  2017, Vol. 34 Issue (8): 088801    DOI: 10.1088/0256-307X/34/8/088801
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Numerical Analysis of Magnetic-Shielding Effectiveness for Magnetic Resonant Wireless Power Transfer System
Wei-Guo Lu**, Hui-Rong Li**, Wei-Ming Chen, Li-Hui Liu
State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044
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Wei-Guo Lu, Hui-Rong Li, Wei-Ming Chen et al  2017 Chin. Phys. Lett. 34 088801
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Abstract Magnetic radiation phenomena appear inevitably in the magnetic-resonance wireless power transfer (MR-WPT) system, and regarding this problem the magnetic-shielding scheme is applied to improve the electromagnetic performance in engineering. In this study, the shielding effectiveness of a two-coil MR-WPT system for different material shields is analyzed in theory using Moser's formula and Schelkunoff's formula. On this basis a candidate magnetic-shielding scheme with a double-layer structure is determined, which has better shielding effectiveness and coils coupling coefficient. Finally, some finite element simulation results validate the correctness of the theoretical analysis, and the shielding effectiveness with the double-layer shield in maximum is 30 dB larger than the one with the single-layer case.
Received: 10 April 2017      Published: 22 July 2017
PACS:  88.80.ht (Wireless power transmission)  
  41.20.Gz (Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems)  
Fund: Supported by the National Natural Science Foundation of China under Grant No 51377185.
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https://cpl.iphy.ac.cn/10.1088/0256-307X/34/8/088801       OR      https://cpl.iphy.ac.cn/Y2017/V34/I8/088801
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Wei-Guo Lu
Hui-Rong Li
Wei-Ming Chen
Li-Hui Liu
[1]Kurs A, Karalis A, Moffatt R, Joannopoulos J D, Fisher P and Soljacic M 2007 Science 317 83
[2]Ron H S Y 2016 IEEE Power Electron. Mag. 3 14
[3]Zhao J, Zhang Y, Li Y, Chen Y, Fang K and He L 2016 Acta Phys. Sin. 65 168801 (in Chinese)
[4]Yu X, Wu T and Li Z 2013 Acta Phys. Sin. 62 058503 (in Chinese)
[5]Zhou H, Jiang Y, Hu W, Luo Y and Deng Q 2016 Trans. Chin. Electrotechnical Soc. 31 1
[6]Li Z, Song K, Wei G, Jiang J and Zhu C 2017 IEEE Trans. Power Electron. 32 3301
[7]Kim J, Kim J, Kong S, Kong S, Kim H, Suh I, Suh N P, Cho D, Kim J and Ahn S 2013 Proc. IEEE 101 1332
[8]Moser J 1967 IEEE Trans. Electromagn. Compat. 9 6
[9]Schelkunoff S 1943 Electromagnetic Waves (New York: Van Nostrand Company) p 223
[10]Liu Y, Zhong Y, Zhang J, Gu M, Yang Z and Ren Z 2009 Chin. Phys. Lett. 26 087502
[11]Yin Z, Wang J and Li J 1987 Chin. Phys. Lett. 4 430
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