Design of multi‐phase permanent magnet synchronous motor with fractional‐slot windings for electromagnetic vibration reduction considering stator teeth modulation

Liu, Zhiguang; Yang, Zhiyong; Wang, Xiaoyuan; Yu, Pengcheng; Li, Zhiqiang

doi:10.1049/elp2.12327

Cited by 1 publication

(1 citation statement)

References 25 publications

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“…However, the influence of the edge effect was not considered. Based on the research status at home and abroad [6,[14][15][16][17][18][19], at this stage, scholars in various countries have focused on the study of electromagnetic vibration in rotating motors, and there are relatively few studies on the vibration and noise of linear motors and the LPST. One of the important research points is the influence of the end effect on the air gap electromagnetic force.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Vibration and Noise Analysis of Linear Phase-Shifting Transformer

Yan,

Zhao,

Yan

et al. 2024

Energies

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The advantages of adjustable angle phase-shifting and great expansibility make the linear phase-shifting transformer a novel type of power conversion device with a wide range of potential applications. However, during the procedure, there is a lot of noise. For the purposes of transformer design and vibration and noise reduction, it is crucial to investigate its electromagnetic vibration and noise. In this paper, the radial electromagnetic force wave considering the influence of the end effect as the source of the noise of the linear phase-shifting transformer was deduced and calculated. Based on this, the spectrum and space–time properties of the radial electromagnetic force waves were simulated and verified. Additionally, a finite element model was created using the Ansys Workbench 2022R1 platform to study the electromagnetic vibration and noise of the linear phase-shifting transformer. A joint simulation of the electromagnetic, structural, and sound fields was then performed. First, the transformer’s natural frequency was determined by modal analysis. After that, the transformer’s structure and the results of the transient electromagnetic field computation were combined and a harmonic response analysis was conducted to determine the vibration acceleration spectrum. Finally, in order to solve the sound pressure field, the transformer’s boundary vibration acceleration was coupled to the air domain. Furthermore, an analysis was conducted to determine the noise distribution surrounding the linear phase-shifting transformer. The joint simulation findings demonstrate that the linear phase-shifting transformer’s resonance, which produces larger electromagnetic vibration and noise, is indeed caused by the radial electromagnetic force. Simultaneously, the impact of the LPST core’s fixed components on the electromagnetic vibration and noise of the core was examined.

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