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Analysis and Comparison of Permanent Magnet Synchronous Motors According to Rotor Type under the Same Design Specifications

Author

Listed:
  • Woo-Sung Jung

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

  • Hoon-Ki Lee

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

  • Young-Keun Lee

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

  • Su-Min Kim

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

  • Jeong-In Lee

    (Electric Power System Design Team, Hyundai Transys Inc., 95, Hyundaikia-ro, Namyang-eup, Hwaseong-si 18280, Republic of Korea)

  • Jang-Young Choi

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

Abstract

A surface-mounted permanent magnet synchronous motor (SPMSM) is an electric motor with a simple magnetic circuit design, fast responsiveness, linear torque–current characteristics, speed–voltage characteristics, and constant operating speed. SPMSMs use only magnetic torque; however, interior PMSMs (IPMSMs) have high power densities because they can use reluctance torque. In addition, when flux-weakening control is used, the operating range is wide compared with the SPMSM. This study presents a comparative analysis of the characteristics of SPMSM and bar-type IPMSM. Characteristic analyses are performed by setting the same stator shape, rated speed, number of turns, winding specifications, voltage limit, and magnet usage in a pole/slot combination of six poles and 27 slots. Next, we compare the no-load back electromotive force, cogging torque, and loss characteristics, and perform a characteristic analysis of each model while satisfying the design specifications. No-load and load tests are performed using a back-to-back system. The results of the analysis and experimental results are in good agreement, and the reliability of the analysis results is guaranteed. The SPMSM is approximately 8.5% superior to the IPMSM in terms of core loss, and the eddy current loss is greater than that of the IPMSM.

Suggested Citation

  • Woo-Sung Jung & Hoon-Ki Lee & Young-Keun Lee & Su-Min Kim & Jeong-In Lee & Jang-Young Choi, 2023. "Analysis and Comparison of Permanent Magnet Synchronous Motors According to Rotor Type under the Same Design Specifications," Energies, MDPI, vol. 16(3), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:3:p:1306-:d:1047430
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