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Design of Magnetic Coupler for Wireless Power Transfer

Author

Listed:
  • Heqi Xu

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

  • Chunfang Wang

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

  • Dongwei Xia

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

  • Yunrui Liu

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

Abstract

In order to improve the restraint ability of electromagnetic energy in space and improve the coupling efficiency, a magnetic coupler structure with composite magnetic shield is proposed. Firstly, the model is established by using the finite-element simulation software. Then, according to the limit of public exposure to time-varying electromagnetic fields pointed out in ICNIPR (International Commission on Non-Ionizing Radiation Protection) guidelines, the characteristics and spatial magnetic field distribution of magnetic couplers with a single shielding structure, double shielding structure, and composite shielding structure are compared and analyzed. Finally, the experimental results show that the structure of magnetic couplers with a composite magnetic shield has a good effect in strengthening magnetic field concentration and reducing the electromagnetic interference of wireless charging systems to the external environment. It also has the advantages of smaller volume, lighter weight, and lower cost, and can effectively improve the transmission efficiency and enhance the stability of wireless charging systems.

Suggested Citation

  • Heqi Xu & Chunfang Wang & Dongwei Xia & Yunrui Liu, 2019. "Design of Magnetic Coupler for Wireless Power Transfer," Energies, MDPI, vol. 12(15), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:3000-:d:254557
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    References listed on IDEAS

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    1. Linlin Tan & Jiacheng Li & Chen Chen & Changxin Yan & Jinpeng Guo & Xueliang Huang, 2016. "Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates," Energies, MDPI, vol. 9(8), pages 1-16, July.
    2. 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.
    3. 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.
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    Cited by:

    1. Gautham Ram Chandra Mouli & Peter Van Duijsen & Francesca Grazian & Ajay Jamodkar & Pavol Bauer & Olindo Isabella, 2020. "Sustainable E-Bike Charging Station That Enables AC, DC and Wireless Charging from Solar Energy," Energies, MDPI, vol. 13(14), pages 1-21, July.
    2. Nadir Benalia & Kouider Laroussi & Idriss Benlaloui & Abdellah Kouzou & Abed-Djebar Bensalah & Ralph Kennel & Mohamed Abdelrahem, 2023. "Optimized Power Pads for Charging Electric Vehicles Based on a New Rectangular Spiral Shape Design," Sustainability, MDPI, vol. 15(2), pages 1-14, January.
    3. Hyeon-Seok Lee & Jae-Jung Yun, 2020. "Three-Port Converter for Integrating Energy Storage and Wireless Power Transfer Systems in Future Residential Applications," Energies, MDPI, vol. 13(1), pages 1-16, January.
    4. 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).
    5. Konstantina Dimitriadou & Nick Rigogiannis & Symeon Fountoukidis & Faidra Kotarela & Anastasios Kyritsis & Nick Papanikolaou, 2023. "Current Trends in Electric Vehicle Charging Infrastructure; Opportunities and Challenges in Wireless Charging Integration," Energies, MDPI, vol. 16(4), pages 1-28, February.
    6. Libin Yang & Ming Zong & Chunlai Li, 2021. "Voltage-Gain Design and Efficiency Optimization of Series/Series-Parallel Inductive Power Transfer System Considering Misalignment Issue," Energies, MDPI, vol. 14(11), pages 1-11, May.
    7. Geetha Palani & Usha Sengamalai & Pradeep Vishnuram & Benedetto Nastasi, 2023. "Challenges and Barriers of Wireless Charging Technologies for Electric Vehicles," Energies, MDPI, vol. 16(5), pages 1-47, February.

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