Harmonics Analysis of Air-Gap Magnetic Field of Induction Motors With Stator Inter-Turn Fault

被引：1
|
作者：
Chen, Peng [1 ]
Xie, Ying [1 ]
机构：
[1] Harbin Univ Sci & Technol, Sch Elect & Elect Engn, Harbin 150080, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2022年 / 58卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Harmonic analysis; Induction motors; Rotors; Stator windings; Coils; Air gaps; Extraterrestrial measurements; Air-gap magnetic field (AGMF); fault feature; inter-turn fault (ITF); magnetic field measurement; space and time harmonics; FREQUENCY-DOMAIN DETECTION; WINDING FAULTS; FLUX; FUSION;
D O I：
10.1109/TMAG.2022.3172562
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The space-time distribution characteristics of the air-gap magnetic field (AGMF) determine the electromagnetic performance of the motor. This article studies the influence of the inter-turn fault (ITF) on space and time harmonics of the AGMF, and the relevant fault characteristics are obtained through analysis and experiments. First, a theoretical analysis is deduced to compare the components of AGMF before and after the fault, and all space and time harmonics are obtained. Then, according to the parameters of the prototype, the distortion and components of space and time harmonics are analyzed. Also, the influence of rotor slot harmonics is considered to analyze the variations of time harmonics. Finally, a detection wire method that can directly measure the AGMF is proposed, and the spectrum results of the measured signals prove the correctness of the research in this article. A fault feature can be extracted based on the frequency band analysis, and it is not affected by load variations. The results obtained through analytical analysis, simulation, and experiment further improve the AGMF research of induction motors with ITF.
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页数：9
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