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Research on the Temperature Field of High-Voltage High Power Line Start Permanent Magnet Synchronous Machines with Different Rotor Cage Structure

Author

Listed:
  • Zhaobin Cao

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Weili Li

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Jinyang Li

    (School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Xiaochen Zhang

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Dong Li

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Meiwei Zhang

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

Abstract

For line start permanent magnet synchronous machines (LSPMSMs), the eddy current loss in the rotor, which has of significant effects on rotor working temperature, may cause thermal demagnetization to permanent magnet. Therefore, this paper addresses an investigation on the temperature distribution in LSPMSM based on a 6 kV, 315 kW prototype with solid starting cage bar. Firstly, the loss distributions, obtained from a 2-D transient electromagnetic field calculation, are determined as the distributed heat source in thermal analyses. Then, the fluid-thermal coupled analyses are performed, by which the temperature distributions in the machine are determined. Meanwhile, the calculated motor performance is verified via comparison with the measured results. The calculation results show that the temperatures in the rotor core and permanent magnets are relatively high. To find the solution for reducing the rotor working temperature, a rotor air slot structure was proposed in this analysis. The theoretical calculation indicates that the rotor working temperature reduction is obvious with the rotor air slot in the machine. Therefore, the operating situation of solid rotor LSPMSM could be improved effectively with the proposed rotor thermal solution, which also benefits the machine reliability and safety.

Suggested Citation

  • Zhaobin Cao & Weili Li & Jinyang Li & Xiaochen Zhang & Dong Li & Meiwei Zhang, 2017. "Research on the Temperature Field of High-Voltage High Power Line Start Permanent Magnet Synchronous Machines with Different Rotor Cage Structure," Energies, MDPI, vol. 10(11), pages 1-14, November.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:11:p:1829-:d:118359
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    Citations

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    Cited by:

    1. Minghan Ma & Yonggang Li & Yucai Wu & Chenchen Dong, 2018. "Multifield Calculation and Analysis of Excitation Winding Interturn Short Circuit Fault in Turbo-Generator," Energies, MDPI, vol. 11(10), pages 1-16, October.
    2. Yu-Xi Liu & Li-Yi Li & Ji-Wei Cao & Qin-He Gao & Zhi-Yin Sun & Jiang-Peng Zhang, 2018. "The Optimization Design of Short-Term High-Overload Permanent Magnet Motors Considering the Nonlinear Saturation," Energies, MDPI, vol. 11(12), pages 1-20, November.
    3. Roberto Eduardo Quintal Palomo & Maciej Gwozdziewicz, 2020. "Effect of Demagnetization on a Consequent Pole IPM Synchronous Generator," Energies, MDPI, vol. 13(23), pages 1-13, December.
    4. Dongming Li & Guihong Feng & Wei Li & Bingyi Zhang & Jiaxu Zhang, 2022. "Effect of Stator Slots on Electromagnetic Performance of a High-Voltage Line-Start Permanent Magnet Synchronous Motor," Energies, MDPI, vol. 15(9), pages 1-18, May.
    5. Zhaobin Cao & Weili Li & Xiaochen Zhang & Yu Fan & Jianjun Zeng, 2018. "Influence of Single/Dual Ventilation Path on Fluid Field and Temperature Field of HVLSSR-PMSM with Air-Cooled Hybrid Ventilation Systems," Energies, MDPI, vol. 11(6), pages 1-15, May.

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