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Optimal Design of Permanent Magnet Synchronous Machine Based on Random Walk Method and Semi 3D Magnetic Equivalent Circuit Considering Overhang Effect

Author

Listed:
  • Su-min Kim

    (Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea)

  • Woo-Sung Jung

    (Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea)

  • Woo-Hyeon Kim

    (R&D Traction Machine Development Team, Hyundai Elevator, Chungju 27329, Korea)

  • Tae-Kyoung Bang

    (Advanced Brake System Engineering Cell, Hyundai Mobis, Yongin 16891, Korea)

  • Dae-Hyun Lee

    (Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea)

  • Yong-Joo Kim

    (Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea)

  • Jang-Young Choi

    (Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea)

Abstract

Permanent magnet synchronous machines (PMSMs) with an overhang structure can increase power density by compensating for the increased magnetic energy of permanent magnets. To analyze the overhang structure, a three-dimensional (3D) analysis of PMSMs is essential. However, 3D analysis takes a long time and the modeling process is complicated in the initial design stage. To overcome these problems, a magnetic equivalent circuit technique is applied to the 2D model. In this paper, an optimal design method for PMSMs with an overhang structure is proposed based on the semi 3D magnetic equivalent circuit (MEC) and random walk method. By using semi 3D MEC, it is possible to quickly analyze PMSM and obtain accurate electromagnetic analysis results considering the overhang effect. Moreover, the volume and weight of PMSM can be minimized by optimizing the rotor’s four design parameters using a random walk algorithm. To obtain high efficiency, the objective function is selected so that copper loss is minimized under the same constraints. The validity of the proposed design technique is verified by comparing the analysis results of semi 3D MEC and 3D finite element method for the derived optimal model.

Suggested Citation

  • Su-min Kim & Woo-Sung Jung & Woo-Hyeon Kim & Tae-Kyoung Bang & Dae-Hyun Lee & Yong-Joo Kim & Jang-Young Choi, 2022. "Optimal Design of Permanent Magnet Synchronous Machine Based on Random Walk Method and Semi 3D Magnetic Equivalent Circuit Considering Overhang Effect," Energies, MDPI, vol. 15(21), pages 1-10, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:7852-:d:950920
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    Cited by:

    1. Hector G. Parra & Hernan D. Ceron & William Gomez & Elvis E. Gaona, 2023. "Experimental Analysis of Oscillatory Vortex Generators in Wind Turbine Blade," Energies, MDPI, vol. 16(11), pages 1-14, May.

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