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Magnetic Field Characteristics and Stator Core Losses of High-Speed Permanent Magnet Synchronous Motors

Author

Listed:
  • Dajun Tao

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China
    National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, Heilongjiang Province, China)

  • Kai Liang Zhou

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China)

  • Fei Lv

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China)

  • Qingpeng Dou

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China)

  • Jianxiao Wu

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China
    National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, Heilongjiang Province, China)

  • Yutian Sun

    (Harbin Electric Machinery Company Limited, Harbin 150040, Heilongjiang Province, China)

  • Jibin Zou

    (Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China)

Abstract

This study focuses on the core losses in the stator region of high-speed permanent magnet synchronous motors, magnetic field characteristics in the load region, and variations in iron losses caused by changes in these areas. A two-pole 120 kW high-speed permanent magnet synchronous motor is used as the object of study, and a two-dimensional transient electromagnetic field-variable load circuit combined calculation model is established. Based on electromagnetic field theory, the electromagnetic field of the high-speed permanent magnet synchronous motor under multi-load conditions is calculated using the time-stepping finite element method. The magnetic field distribution of the high-speed permanent magnet synchronous motor under a multi-load condition is obtained, and the variations in iron core losses in different parts of the motor under multi-load conditions are further analyzed. The calculation results show that most of the stator iron core losses are dissipated in the stator yoke. The stator yoke iron loss under the no-load condition exceeds 70% of the total stator iron core loss. The stator yoke iron loss under rated operation conditions exceeds 50% of the total stator iron core loss. The stator loss under rated load operation conditions is higher than that under no-load operation. These observations are sufficient to demonstrate that the running status of high-speed motors is closely related to the stator iron losses, which have significance in determining the reasonable yoke structure of high-speed and high-power motors and the cooling methods of motor stators.

Suggested Citation

  • Dajun Tao & Kai Liang Zhou & Fei Lv & Qingpeng Dou & Jianxiao Wu & Yutian Sun & Jibin Zou, 2020. "Magnetic Field Characteristics and Stator Core Losses of High-Speed Permanent Magnet Synchronous Motors," Energies, MDPI, vol. 13(3), pages 1-15, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:535-:d:311828
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    Citations

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    Cited by:

    1. Qiang Wang & Rui Li & Ziliang Zhao & Kui Liang & Wei Xu & Pingping Zhao, 2023. "Temperature Field Analysis and Cooling Structure Optimization for Integrated Permanent Magnet In-Wheel Motor Based on Electromagnetic-Thermal Coupling," Energies, MDPI, vol. 16(3), pages 1-18, February.
    2. Wen Ji & Fei Ni & Dinggang Gao & Shihui Luo & Qichao Lv & Dongyuan Lv, 2021. "Electromagnetic Design of High-Power and High-Speed Permanent Magnet Synchronous Motor Considering Loss Characteristics," Energies, MDPI, vol. 14(12), pages 1-19, June.
    3. Zeyang Fan & Hong Yi & Jian Xu & Kun Xie & Yue Qi & Sailin Ren & Hongdong Wang, 2021. "Performance Study and Optimization Design of High-Speed Amorphous Alloy Induction Motor," Energies, MDPI, vol. 14(9), pages 1-19, April.
    4. Xin Ba & Zhenjie Gong & Youguang Guo & Chengning Zhang & Jianguo Zhu, 2022. "Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss," Energies, MDPI, vol. 15(6), pages 1-18, March.
    5. Xiaoshuai Bi & Likun Wang & Fabrizio Marignetti & Minghao Zhou, 2021. "Research on Electromagnetic Field, Eddy Current Loss and Heat Transfer in the End Region of Synchronous Condenser with Different End Structures and Material Properties," Energies, MDPI, vol. 14(15), pages 1-15, July.

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