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Research on the Influence of Power-Supply Mode and Copper-Shielding Layer on the Loss of Cryogenic Permanent Magnet Motor for LNG Pump

Author

Listed:
  • Shuqi Liu

    (National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, China)

  • Baojun Ge

    (National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, China)

  • Dajun Tao

    (National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, China)

  • Yue Wang

    (National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, China)

  • Peng Hou

    (National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology, Harbin 150080, China)

  • Yong Wang

    (Science and Technology Department, Harbin University of Science and Technology, Harbin 150080, China)

Abstract

In order to study the method for reducing the losses in cryogenic permanent magnet motors for LNG pumps, the design of a submersible cryogenic permanent magnet brushless DC motor is presented in this paper. First, the materials used in the motor were tested at room temperature and at a low temperature, and the BH curve and BP curve of the silicon-steel sheet were obtained. Next, DC power supply and PWM power supply were used to analyze the influence of the power-supply mode on the motor loss. Finally, based on the calculation results of the motor loss, the ability of the copper-shielding layer to reduce the motor loss was explored. In the calculation process, the influence of the temperature was considered, and the motor losses at different temperatures were compared and analyzed, which provided a reference for reducing the loss of the cryogenic permanent magnet motor.

Suggested Citation

  • Shuqi Liu & Baojun Ge & Dajun Tao & Yue Wang & Peng Hou & Yong Wang, 2022. "Research on the Influence of Power-Supply Mode and Copper-Shielding Layer on the Loss of Cryogenic Permanent Magnet Motor for LNG Pump," Energies, MDPI, vol. 15(13), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4822-:d:853548
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