{"title":"Improving the Crest of Radial Force for Pole-Frequency Vibration Suppression in PM Machines","authors":"Jinhua Chen;Shihao Zhao;Yunpeng Gao;Chi Zhang","doi":"10.1109/TTE.2025.3538479","DOIUrl":null,"url":null,"abstract":"The pole-frequency electromagnetic (EM) vibration of surface-mounted permanent magnet (PM) synchronous motor is primarily affected by the fundamental component of air gap flux density, which is challenging to mitigate. This article proposes a novel type of PM rotor for suppressing pole-frequency EM vibration. First, the generation principle of pole-frequency radial air gap force density (AGFD) is derived. Subsequently, a novel magnet structure with a low center and high side shape is proposed to reduce the pole-frequency harmonic by improving the crest of radial AGFD. Then, the tooth modulation effect is considered, compared with the bread-loaf PM rotor, and the pole-frequency harmonics of the tooth forces and moment of the proposed rotor are further analyzed. Finally, the 24-slot/ 28-pole prototypes with different PM rotors are manufactured, and several simulations and vibration test results are conducted to validate the proposed PM in suppressing pole-frequency EM vibration.","PeriodicalId":56269,"journal":{"name":"IEEE Transactions on Transportation Electrification","volume":"11 3","pages":"8213-8223"},"PeriodicalIF":8.3000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Transportation Electrification","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10870280/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The pole-frequency electromagnetic (EM) vibration of surface-mounted permanent magnet (PM) synchronous motor is primarily affected by the fundamental component of air gap flux density, which is challenging to mitigate. This article proposes a novel type of PM rotor for suppressing pole-frequency EM vibration. First, the generation principle of pole-frequency radial air gap force density (AGFD) is derived. Subsequently, a novel magnet structure with a low center and high side shape is proposed to reduce the pole-frequency harmonic by improving the crest of radial AGFD. Then, the tooth modulation effect is considered, compared with the bread-loaf PM rotor, and the pole-frequency harmonics of the tooth forces and moment of the proposed rotor are further analyzed. Finally, the 24-slot/ 28-pole prototypes with different PM rotors are manufactured, and several simulations and vibration test results are conducted to validate the proposed PM in suppressing pole-frequency EM vibration.
期刊介绍：
IEEE Transactions on Transportation Electrification is focused on components, sub-systems, systems, standards, and grid interface technologies related to power and energy conversion, propulsion, and actuation for all types of electrified vehicles including on-road, off-road, off-highway, and rail vehicles, airplanes, and ships.
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