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Design Optimization of a Synchronous Homopolar Motor with Ferrite Magnets for Subway Train

Author

Listed:
  • Vladimir Dmitrievskii

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Vladimir Prakht

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Vadim Kazakbaev

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

Abstract

Brushless synchronous homopolar machines (SHM) have long been used as highly reliable motors and generators with an excitation winding on the stator. However, a significant disadvantage that limits their use in traction applications is the reduced specific torque due to the incomplete use of the rotor surface. One possible way to improve the torque density of SHMs is to add inexpensive ferrite magnets in the rotor slots. This paper presents the results of optimizing the performances of an SHM with ferrite magnets for a subway train, considering the timing diagram of train movement. A comparison of its characteristics with an SHM without permanent magnets is also presented. When using the SHM with ferrite magnets, a significant reduction in the dimensions and weight of the motor, as well as power loss, is shown.

Suggested Citation

  • Vladimir Dmitrievskii & Vladimir Prakht & Vadim Kazakbaev, 2023. "Design Optimization of a Synchronous Homopolar Motor with Ferrite Magnets for Subway Train," Mathematics, MDPI, vol. 11(3), pages 1-17, January.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:3:p:589-:d:1044038
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    References listed on IDEAS

    as
    1. Fei Lin & Xuyang Li & Yajie Zhao & Zhongping Yang, 2016. "Control Strategies with Dynamic Threshold Adjustment for Supercapacitor Energy Storage System Considering the Train and Substation Characteristics in Urban Rail Transit," Energies, MDPI, vol. 9(4), pages 1-18, March.
    2. Vladimir Dmitrievskii & Vladimir Prakht & Alecksey Anuchin & Vadim Kazakbaev, 2021. "Design Optimization of a Traction Synchronous Homopolar Motor," Mathematics, MDPI, vol. 9(12), pages 1-12, June.
    3. Vladimir Prakht & Vladimir Dmitrievskii & Vadim Kazakbaev & Alecksey Anuchin, 2022. "Comparative Study of Electrically Excited Conventional and Homopolar Synchronous Motors for the Traction Drive of a Mining Dump Truck Operating in a Wide Speed Range in Field-Weakening Region," Mathematics, MDPI, vol. 10(18), pages 1-16, September.
    4. 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.
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