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Thermal Analysis of Dual-Axis-Direction Hybrid Excitation Generator for Electric Vehicles

Author

Listed:
  • Yu Cao

    (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

  • Shushu Zhu

    (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

  • Junyue Yu

    (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

  • Chuang Liu

    (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

Abstract

Electric vehicle (EV) generators have characteristics of small volume and high power density, which leads to high temperature rise. The temperature rise will directly influence the service life and reliability of the generator, so thermal analysis of EV generators is necessary in machine design. This paper carries out thermal analysis of a dual-axis-direction hybrid excitation generator (DHEG) used in EVs. The lumped parameter thermal network (LPTN) method is used to build the three-dimensional thermal model of DHEG. Compared with finite element analysis, LPTN can significantly reduce the simulation time while ensuring a good accuracy. Then, the influence of heat dissipation rib on DHEG temperature rise is studied. The results prove that adding heat dissipation rib on the enclosure surface can effectively reduce the maximum temperature of DHEG.

Suggested Citation

  • Yu Cao & Shushu Zhu & Junyue Yu & Chuang Liu, 2022. "Thermal Analysis of Dual-Axis-Direction Hybrid Excitation Generator for Electric Vehicles," Energies, MDPI, vol. 15(9), pages 1-19, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3011-:d:797924
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    Cited by:

    1. Gustav Mörée & Mats Leijon, 2022. "Overview of Hybrid Excitation in Electrical Machines," Energies, MDPI, vol. 15(19), pages 1-38, October.

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