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Performance Analysis and Optimization of Power Density Enhanced PMSM with Magnetic Stripe on Rotor

Author

Listed:
  • Wenlong Wei

    (School of Mechanical Engineering, Sichuan University, Chengdu 610065, China)

  • Jinping Zhang

    (School of Mechanical Engineering, Sichuan University, Chengdu 610065, China)

  • Jin Yao

    (School of Mechanical Engineering, Sichuan University, Chengdu 610065, China)

  • Siqi Tang

    (School of Mechanical Engineering, Sichuan University, Chengdu 610065, China)

  • Shiyou Zhang

    (School of Mechanical Engineering, Sichuan University, Chengdu 610065, China)

Abstract

A permanent magnet synchronous motor (PMSM) has advantages in applications such as electric vehicles and all-electric-aircraft because of its inherent characteristics of high power density. In order to further improve its power density, this paper proposes a novel rotor structure with a magnetic stripe, based on the “dual stator + Halbach array” topology of the PMSM, which leads to a PMSM with greater power density. Then, this paper proposes characteristic parameters such as the external air gap proportional coefficient K 1 and the internal air gap proportional coefficient K 2 of the novel rotor structure, and establishes the torque analysis model of the novel rotor structure and the corresponding motor. Simulation results show that the novel rotor structure can increase the average torque. Then, this paper establishes an optimization model, in which K 1 and K 2 are taken as optimization variables, a torque fluctuation of no more than 5% is set as a constraint, and the maximum average torque is set as the optimization goal. The results show that the optimized novel rotor structure with magnetic stripe can significantly improve the torque performance of the PMSM, and the optimization method proposed is efficient.

Suggested Citation

  • Wenlong Wei & Jinping Zhang & Jin Yao & Siqi Tang & Shiyou Zhang, 2020. "Performance Analysis and Optimization of Power Density Enhanced PMSM with Magnetic Stripe on Rotor," Energies, MDPI, vol. 13(17), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:17:p:4457-:d:405717
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    Citations

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    Cited by:

    1. Zhaolong Sun & Guangyong Jia & Chuibing Huang & Weichang Zhou & Yinhao Mao & Zhaoran Lei, 2023. "Accurate Modeling and Optimization of Electromagnetic Forces in an Ironless Halbach-Type Permanent Magnet Synchronous Linear Motor," Energies, MDPI, vol. 16(15), pages 1-19, August.
    2. Kwang-Il Jeong & Reza Heidari & Do-Hyun Kang & Tae-Jun Ahn & Gwan Soo Park & Jin-Woo Ahn & Grace Firsta Lukman, 2023. "Magnetic Screen Effects on Torque Ripple and Efficiency of Dual Air-Gap Surface Permanent Magnet Synchronous Motor," Energies, MDPI, vol. 16(19), pages 1-16, October.
    3. Jean-Michel Grenier & Ramón Pérez & Mathieu Picard & Jérôme Cros, 2021. "Magnetic FEA Direct Optimization of High-Power Density, Halbach Array Permanent Magnet Electric Motors," Energies, MDPI, vol. 14(18), pages 1-19, September.

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