IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i1p277-d305627.html
   My bibliography  Save this article

Analysis and Experiment for Wireless Power Transfer Systems with Two Kinds Shielding Coils in EVs

Author

Listed:
  • Yushan Wang

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
    Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi’an 710072, China)

  • Baowei Song

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China)

  • Zhaoyong Mao

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
    Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi’an 710072, China)

Abstract

Electric vehicles (EVs) with wireless power transfer (WPT) systems are convenient, but WPT technology will produce a strong stray electromagnetic field (EMF) in the surrounding space when the system works with high power. Shielding coils can reduce stray EMF efficiently without additional control, and they have advantages of being simple, light, and cheap. In this paper, the series-opposing structure is compared systematically with the inductive structure based on circuit theory and electromagnetic field theory. Simplified circuit models are proposed to give an intuitive and comprehensive analysis of transfer efficiency. Electric field analysis and finite element analysis (FEA) is used to explain the functional principles of shielding coils and to compare the EMF distribution excited by two structures. The simulation results show that both structures decrease the mutual inductance and perform better than the system without shielding coils when they have the same transfer efficiency. Further, the inductive structure system performs best. The most important between two structures is that the shielding effects is independent of turns of shielding coils for inductive structure, while it can be adjusted by changing turns of shielding coils for the series-opposing structure. The experimental results show that the EMF is reduced by 65% for the inductive structure and 40% for the series-opposing structure. The theoretical analysis is confirmed by experimental results.

Suggested Citation

  • Yushan Wang & Baowei Song & Zhaoyong Mao, 2020. "Analysis and Experiment for Wireless Power Transfer Systems with Two Kinds Shielding Coils in EVs," Energies, MDPI, vol. 13(1), pages 1-18, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:1:p:277-:d:305627
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/1/277/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/1/277/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. 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.
    2. 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.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Changsheng Li & Wenjie Dong & Libo Ding & He Zhang & Hang Sun, 2020. "Transfer Characteristics of the Nonlinear Parity-Time-Symmetric Wireless Power Transfer System at Detuning," Energies, MDPI, vol. 13(19), pages 1-15, October.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Joao Victor Pinon Pereira Dias & Masafumi Miyatake, 2018. "Increase in Robustness against Effects of Coil Misalignment on Electrical Parameters Using Magnetic Material Layer in Planar Coils of Wireless Power Transfer Transformer," Energies, MDPI, vol. 11(8), pages 1-25, July.
    2. 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.
    3. 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).
    4. Feng Wen & Xueliang Huang, 2017. "Human Exposure to Electromagnetic Fields from Parallel Wireless Power Transfer Systems," IJERPH, MDPI, vol. 14(2), pages 1-15, February.
    5. Matjaz Rozman & Michael Fernando & Bamidele Adebisi & Khaled M. Rabie & Tim Collins & Rupak Kharel & Augustine Ikpehai, 2017. "A New Technique for Reducing Size of a WPT System Using Two-Loop Strongly-Resonant Inductors," Energies, MDPI, vol. 10(10), pages 1-18, October.
    6. 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.
    7. Yan, Xiao-Yu & Yang, Shi-Chun & He, Hong & Tang, Tie-Qiao, 2018. "An optimization model for wireless power transfer system based on circuit simulation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 509(C), pages 873-880.
    8. Kafeel Ahmed Kalwar & Saad Mekhilef & Mehdi Seyedmahmoudian & Ben Horan, 2016. "Coil Design for High Misalignment Tolerant Inductive Power Transfer System for EV Charging," Energies, MDPI, vol. 9(11), pages 1-13, November.
    9. Xian Zhang & Yanan Ren & Lin Sha & Qingxin Yang & Xuejing Ni & Fengxian Wang, 2020. "Analysis of Dynamic Characteristics of Foreign Metal Objects under Electromagnetic Force in High-Power Wireless Power Transfer," Energies, MDPI, vol. 13(15), pages 1-15, July.
    10. Ravikiran Vaka & Ritesh Kumar Keshri, 2017. "Review on Contactless Power Transfer for Electric Vehicle Charging," Energies, MDPI, vol. 10(5), pages 1-20, May.
    11. Wenxun Xiao & Ruigeng Shen & Bo Zhang & Dongyuan Qiu & Yanfeng Chen & Tian Li, 2018. "Effects of Foreign Metal Object on Soft-Switching Conditions of Class-E Inverter in WPT," Energies, MDPI, vol. 11(8), pages 1-19, July.
    12. Marojahan Tampubolon & Laskar Pamungkas & Huang-Jen Chiu & Yu-Chen Liu & Yao-Ching Hsieh, 2018. "Dynamic Wireless Power Transfer for Logistic Robots," Energies, MDPI, vol. 11(3), pages 1-13, February.
    13. 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.
    14. Jianwei Kang & Jie Lu & Deyu Zeng & Xiangyang Shi, 2022. "Analysis and Visualization of the Instantaneous Spatial Energy Density and Poynting Vector of the Wireless Power Transfer System," Energies, MDPI, vol. 15(16), pages 1-18, August.
    15. Chaoqiang Jiang & K.T. Chau & Chunhua Liu & Wei Han, 2017. "Wireless DC Motor Drives with Selectability and Controllability," Energies, MDPI, vol. 10(1), pages 1-15, January.
    16. Ruikun Mai & Liwen Lu & Yong Li & Tianren Lin & Zhengyou He, 2017. "Circulating Current Reduction Strategy for Parallel-Connected Inverters Based IPT Systems," Energies, MDPI, vol. 10(3), pages 1-17, February.
    17. Matjaz Rozman & Michael Fernando & Bamidele Adebisi & Khaled M. Rabie & Rupak Kharel & Augustine Ikpehai & Haris Gacanin, 2017. "Combined Conformal Strongly-Coupled Magnetic Resonance for Efficient Wireless Power Transfer," Energies, MDPI, vol. 10(4), pages 1-18, April.
    18. 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.
    19. Md Morshed Alam & Saad Mekhilef & Mehdi Seyedmahmoudian & Ben Horan, 2017. "Dynamic Charging of Electric Vehicle with Negligible Power Transfer Fluctuation," Energies, MDPI, vol. 10(5), pages 1-20, May.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:1:p:277-:d:305627. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.