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Novel Design of Six-Phase Spoke-Type Ferrite Permanent Magnet Motor for Electric Truck Application

Author

Listed:
  • Hoyun Won

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Yang-Ki Hong

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Minyeong Choi

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Jonathan Platt

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Briana Bryant

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Seungdeog Choi

    (Department of Electrical Engineering, Mississippi State University, Starkville, MS 35762, USA)

  • Shuhui Li

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Hwan-Sik Yoon

    (Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Timothy A. Haskew

    (Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA)

  • Jongkook Lee

    (Institute of Fundamental and Advanced Technology (IFAT), Hyundai Motor Company, Uiwang-si 16082, Korea)

  • Taegyu Lee

    (Institute of Fundamental and Advanced Technology (IFAT), Hyundai Motor Company, Uiwang-si 16082, Korea)

  • Tae-Won Lim

    (Institute of Fundamental and Advanced Technology (IFAT), Hyundai Motor Company, Uiwang-si 16082, Korea)

Abstract

This paper proposes a 300 kW 24-slot/10-pole 6-phase stator-shifted fractional-slot concentrated winding spoke-type ferrite permanent magnet machine for electric truck applications. The proposed motor consists of a stator with dual three-phase windings positioned 75 degrees apart to reduce higher-order MMF harmonic order, and a rotor with an inexpensive and high-resistance ferrite permanent magnet in the spoke configuration. The simulated result of the stator-shifted machine is compared with a fabricated stator-shifted machine, and the results show good agreement with each other. To further reduce the torque ripple from 2.5 to 0.9% while maintaining a high maximum torque of 2980 Nm, circular voids with a diameter of 11 mm are embedded in the rotor. The proposed motor is evaluated for irreversible demagnetization, mechanical and thermal stability, and fault tolerant ability. To assess the proposed motor performance, the electric truck simulation model is constructed using MATLAB/Simulink and used to compare with the reported 12-slot/10-pole rare-earth permanent magnet-based machine. Compared to a previously reported six-phase rare-earth permanent magnet based flat-type machine, the proposed motor can save 4.3 kWh of energy with a USD 2512 lower cost while retaining a similar motor performance.

Suggested Citation

  • Hoyun Won & Yang-Ki Hong & Minyeong Choi & Jonathan Platt & Briana Bryant & Seungdeog Choi & Shuhui Li & Hwan-Sik Yoon & Timothy A. Haskew & Jongkook Lee & Taegyu Lee & Tae-Won Lim, 2022. "Novel Design of Six-Phase Spoke-Type Ferrite Permanent Magnet Motor for Electric Truck Application," Energies, MDPI, vol. 15(6), pages 1-21, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:6:p:1997-:d:767338
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    References listed on IDEAS

    as
    1. Luming Cheng & Yi Sui & Ping Zheng & Zuosheng Yin & Chuanze Wang, 2018. "Influence of Stator MMF Harmonics on the Utilization of Reluctance Torque in Six-Phase PMA-SynRM with FSCW," Energies, MDPI, vol. 11(1), pages 1-17, January.
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