NVH optimization of PMSM based on auxiliary slots in stator and rotor

Yiying Wei; Yanling Zheng; Xinyan Li; Yongping Zhou; Yunxiao Shen

doi:10.1117/12.3004269

25 September 2023 NVH optimization of PMSM based on auxiliary slots in stator and rotor

Yiying Wei, Yanling Zheng, Xinyan Li, Yongping Zhou, Yunxiao Shen

Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 1278842 (2023) https://doi.org/10.1117/12.3004269
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia

Abstract

Considering the issue that the output torque performance and the noise, vibration and harshness (NVH) performance of permanent magnet synchronous motor (PMSM) are difficult to balance. In this paper, a structure with auxiliary slots for the stator and rotor is proposed, which weakens the radial electromagnetic force (REF) while maintaining the output torque, and reduces electromagnetic vibration and electromagnetic noise. Two dimensional electromagnetic models of the motor with different parameters of stator and rotor auxiliary slot are established respectively. According to the evaluation of REF density amplitude, radial air gap flux density, total harmonic distortion (THD) and average output torque, one group of auxiliary slot parameters is selected for combination. Compared to the outcomes of the original motor model, the noise value after improvement decreases by 20.2% and output torque basically unchanged. This shows that reasonable slotting parameters can improve NVH performance while maintaining output torque performance.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yiying Wei, Yanling Zheng, Xinyan Li, Yongping Zhou, and Yunxiao Shen "NVH optimization of PMSM based on auxiliary slots in stator and rotor", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 1278842 (25 September 2023); https://doi.org/10.1117/12.3004269

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KEYWORDS

Magnetism

Vibration

Electromagnetism

Design and modelling

Harmonic generation

High harmonic generation

Teeth

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