Dynamic electromagnetic force of cryogenic high-speed permanent magnet motors with eccentric fault

被引：0
|
作者：
Ge B.-J. [1 ]
Liu H.-T. [1 ]
Wang L.-K. [1 ]
Lin P. [1 ]
Wen Y.-L. [1 ]
机构：
[1] School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2022年 / 26卷 / 05期
关键词：
Cryogenic; Eccentric fault; Electromagnetic force; Electromagnetic torque; High-speed permanent magnet motor; Maxwell tensor method;
D O I：
10.15938/j.emc.2022.05.007
中图分类号：
学科分类号：
摘要：
Aiming at the issue that the change of the material properties of motors affects the electromagnetic force characteristics in cryogenic environment, the dynamic electromagnetic force distribution characteristics and variation rules before and after eccentric fault of a cryogenic high-speed permanent magnet motor was studied. An electromagnetic force calculation model based on Maxwell tensor method was proposed. The dynamic electromagnetic forces before and after eccentric faults of seelve surface, stator tooth top and wall were calculated. The difference of the electromagnetic force distribution compared with that under room temperature was analyzed. The evolution law of electromagnetic force and the location of stress concentration before and after eccentric fault were quantitatively described. The rationality of the calculation results of electromagnetic force was verified from three aspects. Electromagnetic field parameters, torque and temporal and spatial characteristics of air gap electromagnetic force. The analysis method and results of electromagnetic force provide a reference for the electromagnetic force calculation of similar motors, and lay a foundation for the deformation analysis and structural optimization design of motors. © 2022, Harbin University of Science and Technology Publication. All right reserved.
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页码：55 / 64
页数：9
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