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Magnetic Screen Effects on Torque Ripple and Efficiency of Dual Air-Gap Surface Permanent Magnet Synchronous Motor

Author

Listed:
  • Kwang-Il Jeong

    (Department of Mechatronics Engineering, Kyungsung University, Busan 48434, Republic of Korea)

  • Reza Heidari

    (Department of Mechatronics Engineering, Kyungsung University, Busan 48434, Republic of Korea)

  • Do-Hyun Kang

    (Value Added Mechatronics (VAM), Inc., Changwon 51542, Republic of Korea)

  • Tae-Jun Ahn

    (Value Added Mechatronics (VAM), Inc., Changwon 51542, Republic of Korea
    Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

  • Gwan Soo Park

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

  • Jin-Woo Ahn

    (Department of Mechatronics Engineering, Kyungsung University, Busan 48434, Republic of Korea)

  • Grace Firsta Lukman

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

Abstract

Electric motors with a double air-gap structure offer increased power or torque density compared to their single air-gap counterparts, achievable through double-stator or double-rotor configurations. In a previous study, the authors proposed a double-stator permanent magnet synchronous motor (PMSM) with a magnetic screen placed in the middle of the rotor to isolate the outer and inner motors. However, the analysis of the magnetic screen was not provided in that study, as the design was arbitrarily chosen. This research focuses on the effects of the magnetic screen size and selects the appropriate dimensions for optimal motor performance. Finite element analysis (FEA) is employed to assess the electromagnetic characteristics of the screen. Subsequently, the motor is manufactured and tested. The results show that the chosen magnetic screen size contributes to significant efficiency improvements. In particular, the motor achieved an efficiency of 95.2% during the qualification test, surpassing the efficiency obtained in the previous study.

Suggested Citation

  • Kwang-Il Jeong & Reza Heidari & Do-Hyun Kang & Tae-Jun Ahn & Gwan Soo Park & Jin-Woo Ahn & Grace Firsta Lukman, 2023. "Magnetic Screen Effects on Torque Ripple and Efficiency of Dual Air-Gap Surface Permanent Magnet Synchronous Motor," Energies, MDPI, vol. 16(19), pages 1-16, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:19:p:6969-:d:1254410
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    References listed on IDEAS

    as
    1. Mudassir Raza Siddiqi & Tanveer Yazdan & Jun-Hyuk Im & Muhammad Humza & Jin Hur, 2021. "Design and Analysis of a Dual Airgap Radial Flux Permanent Magnet Vernier Machine with Yokeless Rotor," Energies, MDPI, vol. 14(8), pages 1-15, April.
    2. Gustav Mörée & Mats Leijon, 2022. "Overview of Hybrid Excitation in Electrical Machines," Energies, MDPI, vol. 15(19), pages 1-38, October.
    3. Wenlong Wei & Jinping Zhang & Jin Yao & Siqi Tang & Shiyou Zhang, 2020. "Performance Analysis and Optimization of Power Density Enhanced PMSM with Magnetic Stripe on Rotor," Energies, MDPI, vol. 13(17), pages 1-14, August.
    4. Xinbo Liu & Xu Zhong & Yi Du & Xun Chen, 2018. "A Novel Triple-Permanent-Magnet-Excited Vernier Machine with Double-Stator Structure for Low-Speed and High-Torque Applications," Energies, MDPI, vol. 11(7), pages 1-18, July.
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