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Design and Analysis of Magnetic Coils for Optimizing the Coupling Coefficient in an Electric Vehicle Wireless Power Transfer System

Author

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  • Yang Yang

    (School of Automobile, Chang’an University, Xi’an 710064, China)

  • Jinlong Cui

    (School of Automobile, Chang’an University, Xi’an 710064, China)

  • Xin Cui

    (School of Material Science and Engineering, Chang’an University, Xi’an 710064, China)

Abstract

Although the wireless power transfer (WPT) system for electric vehicles (EVs) provides numerous advantages, there is still a low coupling coefficient and the misalignment between the primary coil and the secondary coil needs to be solved. In this paper, the transmission efficiency and transmitted power were calculated based on Series-Series (SS) compensation topology. The coupling coefficient is related to the coil parameters and misalignments. A simulation study was carried out to explore the variation in the coupling coefficient for different coil configurations under different air gaps and coil misalignments. Moreover, the influence of the internal parameters of the square coil on the coupling coefficient was further studied. Finally, this paper discusses the influence of ferrite cores with a square coil on the coupling coefficient. The results of this paper show that designing the optimal internal parameters of the square coil and the ferrite core can increase the coupling coefficient between the coils, which can also provide guidelines for the design and optimization of the magnetic coupling coils for a wireless charging system for electric vehicles.

Suggested Citation

  • Yang Yang & Jinlong Cui & Xin Cui, 2020. "Design and Analysis of Magnetic Coils for Optimizing the Coupling Coefficient in an Electric Vehicle Wireless Power Transfer System," Energies, MDPI, vol. 13(16), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4143-:d:397479
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    References listed on IDEAS

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    2. Karim Kadem & Mohamed Bensetti & Yann Le Bihan & Eric Labouré & Mustapha Debbou, 2021. "Optimal Coupler Topology for Dynamic Wireless Power Transfer for Electric Vehicle," Energies, MDPI, vol. 14(13), pages 1-18, July.
    3. Emrullah Aydin & Mehmet Timur Aydemir & Ahmet Aksoz & Mohamed El Baghdadi & Omar Hegazy, 2022. "Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review," Energies, MDPI, vol. 15(14), pages 1-24, July.
    4. Jacopo Colussi & Roberto Re & Paolo Guglielmi, 2022. "Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System," Energies, MDPI, vol. 15(14), pages 1-18, July.
    5. Yao Pei & Yann Le Bihan & Mohamed Bensetti & Lionel Pichon, 2021. "Comparison of Coupling Coils for Static Inductive Power-Transfer Systems Taking into Account Sources of Uncertainty," Sustainability, MDPI, vol. 13(11), pages 1-13, June.
    6. Haiyue Wang & Lianwen Deng & Heng Luo & Junsa Du & Daohan Zhou & Shengxiang Huang, 2021. "Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array," Energies, MDPI, vol. 14(2), pages 1-12, January.
    7. Amjad, Muhammad & Farooq-i-Azam, Muhammad & Ni, Qiang & Dong, Mianxiong & Ansari, Ejaz Ahmad, 2022. "Wireless charging systems for electric vehicles," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    8. Jianyang Zhai & Xudong Zhang & Shiqi Zhao & Yuan Zou, 2023. "Modeling and Experiments of a Wireless Power Transfer System Considering Scenarios from In-Wheel-Motor Applications," Energies, MDPI, vol. 16(2), pages 1-20, January.
    9. Li, Feng & Li, Yanjie & Zhou, Siqi & Chen, Yifang & Sun, Xuan & Deng, Yutong, 2022. "Wireless power transfer tuning model of electric vehicles with pavement materials as transmission media for energy conservation," Applied Energy, Elsevier, vol. 323(C).
    10. 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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