Interbar currents and axial fluxes in healthy and faulty induction motors

被引：32

作者：

Meshgin-Kelk, H ^{[1
]}

Milimonfared, W

Toliyat, HA

机构：

[1] Amir Kabir Univ Technol, Dept Elect Engn, Tehran 15914, Iran

[2] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2004年 / 40卷 / 01期

关键词：

fault diagnosis; induction motor; interbar current; shaft flux;

D O I：

10.1109/TIA.2003.821792

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nearly 10% of all failures in cage induction motors occur on the rotor. In previous works, it has been shown that the interbar currents exist in healthy and faulty squirrel-cage induction motors. The majority of techniques detecting bar failures depend on detecting twice the slip-frequency modulation harmonic in the speed, torque, or stator current by analyzing the appropriate frequency spectrum and neglecting the interbar currents. However, the interbar currents create axial fluxes through, the rotor shaft. In this paper, a three-dimensional magnetic equivalent circuit method is presented for the analysis of this phenomenon. Effects of the interbar currents on the broken rotor bar currents, and transient behavior of induction motor are also presented. Theoretical findings have been verified through experiments.

引用

页码：128 / 134

页数：7

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