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Effect of Vertical Metal Plate on Transfer Efficiency of the Wireless Power Transfer System

Author

Listed:
  • Lantao Huang

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

  • Jiahao Zou

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

  • Yihan Zhou

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

  • Yan Hong

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

  • Jing Zhang

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

  • Zinan Ding

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361000, China)

Abstract

Power transfer efficiency is an important issue in wireless power transfer (WPT). In actual applications, the WPT system may be exposed to a complex electromagnetic environment. The metal which is inevitably or accidentally close to the system will impact the power transfer efficiency. Most previous research has aimed at the effect of the metallic sheet paralleled to the resonant coil. This paper focuses on the effect of the metallic plate perpendicular to the resonant coils. Firstly, based on the theoretical analysis, a simulation model is setup using COMSOL Multiphysics. The efficiencies of the double-coils magnetic resonant WPT system with the presence of the parallel and vertical aluminum plate are studied comparatively. Efficiency improvement is observed with the vertical plate while the reduction appeared with the presence of the parallel plate. The vertical metallic plate has shown a magnetic field shielding effect according to the magnetic field distribution. It can reduce the radial magnetic field and enhance the axial magnetic field. Then, the effects of the position and size of the vertical plate are studied. It is found that the transfer efficiency has a preferable improvement when the vertical aluminum plate with a larger size is placed between the resonant coils and near outer edge of the windings. Finally, the experiment is carried out to verify the effect of the vertical aluminum plate on the WPT system.

Suggested Citation

  • Lantao Huang & Jiahao Zou & Yihan Zhou & Yan Hong & Jing Zhang & Zinan Ding, 2019. "Effect of Vertical Metal Plate on Transfer Efficiency of the Wireless Power Transfer System," Energies, MDPI, vol. 12(19), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:19:p:3790-:d:274020
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    References listed on IDEAS

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    1. Kalwar, Kafeel Ahmed & Aamir, Muhammad & Mekhilef, Saad, 2015. "Inductively coupled power transfer (ICPT) for electric vehicle charging – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 462-475.
    2. Aqeel Mahmood Jawad & Rosdiadee Nordin & Sadik Kamel Gharghan & Haider Mahmood Jawad & Mahamod Ismail, 2017. "Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review," Energies, MDPI, vol. 10(7), pages 1-28, July.
    3. Bi, Zicheng & Kan, Tianze & Mi, Chunting Chris & Zhang, Yiming & Zhao, Zhengming & Keoleian, Gregory A., 2016. "A review of wireless power transfer for electric vehicles: Prospects to enhance sustainable mobility," Applied Energy, Elsevier, vol. 179(C), pages 413-425.
    4. Feng Wen & Xueliang Huang, 2016. "Optimal Magnetic Field Shielding Method by Metallic Sheets in Wireless Power Transfer System," Energies, MDPI, vol. 9(9), pages 1-15, September.
    5. Sun, Longzhao & Ma, Dianguang & Tang, Houjun, 2018. "A review of recent trends in wireless power transfer technology and its applications in electric vehicle wireless charging," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 490-503.
    6. Xuezhe Wei & Zhenshi Wang & Haifeng Dai, 2014. "A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances," Energies, MDPI, vol. 7(7), pages 1-26, July.
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