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A Novel Magnet-Axis-Shifted Hybrid Permanent Magnet Machine for Electric Vehicle Applications

Author

Listed:
  • Ya Li

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Hui Yang

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Heyun Lin

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Shuhua Fang

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Weijia Wang

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

Abstract

This paper proposes a novel magnet-axis-shifted hybrid permanent magnet (MAS-HPM) machine, which features an asymmetrical magnet arrangement, i.e., low-cost ferrite and high-performance NdFeB magnets, are placed in the two sides of a “▽”-shaped rotor pole. The proposed magnet-axis-shift (MAS) effect can effectively reduce the difference between the optimum current angles for maximizing permanent magnet (PM) and reluctance torques, and hence the torque capability of the machine can be further improved. The topology and operating principle of the proposed MAS-HPM machine are introduced and are compared with the BMW i3 interior permanent magnet (IPM) machine as a benchmark. The electromagnetic characteristics of the two machines are investigated and compared by finite element analysis (FEA), which confirms the effectiveness of the proposed MAS design concept for torque improvement.

Suggested Citation

  • Ya Li & Hui Yang & Heyun Lin & Shuhua Fang & Weijia Wang, 2019. "A Novel Magnet-Axis-Shifted Hybrid Permanent Magnet Machine for Electric Vehicle Applications," Energies, MDPI, vol. 12(4), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:641-:d:206620
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    References listed on IDEAS

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    1. Hui Yang & Heyun Lin & Zi-Qiang Zhu & Shuhua Fang & Yunkai Huang, 2016. "A Dual-Consequent-Pole Vernier Memory Machine," Energies, MDPI, vol. 9(3), pages 1-15, February.
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    Cited by:

    1. Michal Gierczynski & Lech M. Grzesiak, 2021. "Comparative Analysis of the Steady-State Model Including Non-Linear Flux Linkage Surfaces and the Simplified Linearized Model when Applied to a Highly-Saturated Permanent Magnet Synchronous Machine—Ev," Energies, MDPI, vol. 14(9), pages 1-20, April.
    2. Vladimir Dmitrievskii & Vladimir Prakht & Vadim Kazakbaev & Alecksey Anuchin, 2022. "Comparison of Interior Permanent Magnet and Synchronous Homopolar Motors for a Mining Dump Truck Traction Drive Operated in Wide Constant Power Speed Range," Mathematics, MDPI, vol. 10(9), pages 1-13, May.
    3. Shaopeng Wu & Jinyang Zhou & Xinmiao Zhang & Jiaqiang Yu, 2022. "Design and Research on High Power Density Motor of Integrated Motor Drive System for Electric Vehicles," Energies, MDPI, vol. 15(10), pages 1-23, May.
    4. Muhammad Ramiz Zakir & Junaid Ikram & Saleem Iqbal Shah & Syed Sabir Hussain Bukhari & Salman Ali & Fabrizio Marignetti, 2022. "Performance Improvement of Axial Flux Permanent Magnet Machine with Phase Group Concentrated Coil Winding," Energies, MDPI, vol. 15(19), pages 1-22, October.
    5. Yawei Wang & Nicola Bianchi & Ronghai Qu, 2022. "Comparative Study of Non-Rare-Earth and Rare-Earth PM Motors for EV Applications," Energies, MDPI, vol. 15(8), pages 1-18, April.
    6. Natalia Radwan-Pragłowska & Tomasz Węgiel, 2022. "Permanent Magnet Selections for AFPM Disc Generators," Energies, MDPI, vol. 15(20), pages 1-14, October.
    7. Ling Ding & Yuan Cheng & Tianxu Zhao & Kai Yao & Yao Wang & Shumei Cui, 2023. "Design and Optimization of an Asymmetric Rotor IPM Motor with High Demagnetization Prevention Capability and Robust Torque Performance," Energies, MDPI, vol. 16(9), pages 1-15, April.
    8. Jiahui Huang & Weinong Fu & Shuangxia Niu & Xing Zhao & Yanding Bi & Zhenyang Qiao, 2022. "A General Pattern-Based Design Optimization for Asymmetric Spoke-Type Interior PM Machines," Energies, MDPI, vol. 15(24), pages 1-14, December.

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