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Comparative Analysis and Design of the Shielding Techniques in WPT Systems for Charging EVs

Author

Listed:
  • Linlin Tan

    (School of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China)

  • Kamal Eldin Idris Elnail

    (School of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China)

  • Minghao Ju

    (Shanghai Aerospace Control Technology Institute, No. 1555, Zhongchun Road, Minhang District, Shanghai 201109, China)

  • Xueliang Huang

    (School of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China)

Abstract

Wireless power transfer (WPT) systems for charging Electric Vehicles (EVs) have gained extensive attention due to their many advantages. However, human exposure to electromagnetic fields (EMFs) has become a serious concern in high-power cases. In this paper, shielding techniques, including magnetic, metallic, and resonant reactive current shields, are investigated. Finite element method software is used to evaluate and compare the shielding effectiveness, charger weight, and system performance. The results show that the resonant reactive current shielding has a low EMF level with reasonable system efficiency and acceptable charger weight. In addition, 5 kW with 15 cm air gap WPT chargers were built to validate the simulation results.

Suggested Citation

  • Linlin Tan & Kamal Eldin Idris Elnail & Minghao Ju & Xueliang Huang, 2019. "Comparative Analysis and Design of the Shielding Techniques in WPT Systems for Charging EVs," Energies, MDPI, vol. 12(11), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2115-:d:236653
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    References listed on IDEAS

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    1. Villa, Juan Luis & Sallán, Jesús & Llombart, Andrés & Sanz, José Fco, 2009. "Design of a high frequency Inductively Coupled Power Transfer system for electric vehicle battery charge," Applied Energy, Elsevier, vol. 86(3), pages 355-363, March.
    2. Kamal Eldin Idris Elnail & Xueliang Huang & Chen Xiao & Linlin Tan & Xu Haozhe, 2018. "Core Structure and Electromagnetic Field Evaluation in WPT Systems for Charging Electric Vehicles," Energies, MDPI, vol. 11(7), pages 1-17, July.
    3. Tommaso Campi & Silvano Cruciani & Mauro Feliziani, 2018. "Wireless Power Transfer Technology Applied to an Autonomous Electric UAV with a Small Secondary Coil," Energies, MDPI, vol. 11(2), pages 1-15, February.
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    Cited by:

    1. Xianyi Duan & Junqing Lan & Yinliang Diao & Jose Gomez-Tames & Hiroshi Hirayama & Masashi Hotta & George Fischer & Akimasa Hirata, 2021. "Reduction in Human Interaction with Magnetic Resonant Coupling WPT Systems with Grounded Loop," Energies, MDPI, vol. 14(21), pages 1-14, November.
    2. Mohamed, Ahmed A.S. & Shaier, Ahmed A. & Metwally, Hamid & Selem, Sameh I., 2020. "A comprehensive overview of inductive pad in electric vehicles stationary charging," Applied Energy, Elsevier, vol. 262(C).
    3. Pradeep Vishnuram & Suresh Panchanathan & Narayanamoorthi Rajamanickam & Vijayakumar Krishnasamy & Mohit Bajaj & Marian Piecha & Vojtech Blazek & Lukas Prokop, 2023. "Review of Wireless Charging System: Magnetic Materials, Coil Configurations, Challenges, and Future Perspectives," Energies, MDPI, vol. 16(10), pages 1-31, May.
    4. Yuan Li & Shumei Zhang & Ze Cheng, 2021. "Double-Coil Dynamic Shielding Technology for Wireless Power Transmission in Electric Vehicles," Energies, MDPI, vol. 14(17), pages 1-20, August.

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