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Vibration Reduction of Permanent Magnet Synchronous Motors by Four-Layer Winding: Mathematical Modeling and Experimental Validation

Author

Listed:
  • Young-Hoon Jung

    (Department of Automotive Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
    These authors contributed equally to this work.)

  • Dong-Min Kim

    (Department of Automotive Engineering, Honam University, Gwangju 62399, Republic of Korea
    These authors contributed equally to this work.)

  • Kyoung-Soo Cha

    (Advanced Mobility System Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea)

  • Soo-Hwan Park

    (Department of Mechanical, Robotics, and Energy Engineering, Dongguk University, Seoul 04620, Republic of Korea)

  • Min-Ro Park

    (Department of Electrical Engineering, Soonchunhyang University, Asan 31538, Republic of Korea)

Abstract

This paper proposes a vibration reduction method for fractional slot concentrated winding (FSCW) permanent magnet synchronous motors (PMSMs) by applying a four-layer winding configuration. The radial electromagnetic force (REF), particularly its low space-harmonics, causes significant vibration in PMSMs. These low-order REF components are influenced by sub-harmonics in the airgap magnetic flux density (MFD), which occur at frequencies lower than the fundamental component generated by the armature magnetomotive force (MMF) in FSCW PMSMs. To mitigate these sub-harmonics in the MFD, the four-layer winding is applied to the FSCW PMSM. As a result, the overall vibration of the motor is reduced. To verify the effectiveness of the four-layer winding, both electrical and mechanical characteristics are compared among motors with conventional one-, two-, and, proposed, four-layer windings. Finally, the three motors are fabricated and tested, and their vibration levels are experimentally evaluated.

Suggested Citation

  • Young-Hoon Jung & Dong-Min Kim & Kyoung-Soo Cha & Soo-Hwan Park & Min-Ro Park, 2025. "Vibration Reduction of Permanent Magnet Synchronous Motors by Four-Layer Winding: Mathematical Modeling and Experimental Validation," Mathematics, MDPI, vol. 13(10), pages 1-19, May.
    • Handle: RePEc:gam:jmathe:v:13:y:2025:i:10:p:1603-:d:1655085
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