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Title of Journal: Trans Tianjin Univ

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Abbravation: Transactions of Tianjin University

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Tianjin University

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10.1002/pbc.22005

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1995-8196

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Online brokenbar fault diagnosis system of induc

Authors: Rong Zhang Xiuhe Wang
Publish Date: 2008/04/20
Volume: 14, Issue: 2, Pages: 144-147
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Abstract

Induction motor faults including mechanical and electrical faults are reviewed The fault diagnosis methods are summarized To analyze the influence of stator current torque speed and rotor current on faulted bars a timestepping transient finite element FE model of induction motor with bars faulted is created in this paper With wavelet package analysis method and FFT method the simulation result of finite element is analyzed Based on the simulation analysis the online fault diagnosis system of induction motor with bars faulted is developed With the speed of broken bars motor changed from 1 478 r/min to 1 445 r/min the FFT power spectra and the wavelet package decoupling factors are given The comparison result shows that the online diagnosis system can detect brokenbar fault efficiently

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