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Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure

Author

Listed:
  • Yizhou Hua

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Huangqiu Zhu

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Min Gao

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Zongyou Ji

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

Abstract

The traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor. To overcome the above shortcomings, the permanent-magnet-assisted bearingless synchronous reluctance motor (PMa-BSynRM) is proposed. In this paper, two types of PMa-BSynRM rotors with the same number of permanent magnets but different magnetic barrier structures are designed. A traditional BSynRM with a salient pole rotor is introduced, and the electromagnetic and vibration characteristics of the three BSynRM are analyzed and compared. Firstly, the rotor structures of the two PMa-BSynRMs are designed, and the operation principle of the BSynRM is introduced. Secondly, electromagnetic characteristics of the three motors are analyzed and compared in detail using FEA software. Thirdly, the vibration analysis of the three motors is carried out. Finally, the experimental prototype platforms are built. The FEA and experimental results verify that the designed PMa-BSynRM can improve the power factor and torque density of traditional BSynRMs, and the most superior BSynRM among the three is identified.

Suggested Citation

  • Yizhou Hua & Huangqiu Zhu & Min Gao & Zongyou Ji, 2021. "Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure," Energies, MDPI, vol. 14(4), pages 1-17, February.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:879-:d:495565
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    Cited by:

    1. Krzysztof Falkowski & Paulina Kurnyta-Mazurek & Tomasz Szolc & Maciej Henzel, 2022. "Radial Magnetic Bearings for Rotor–Shaft Support in Electric Jet Engine," Energies, MDPI, vol. 15(9), pages 1-33, May.

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