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http://dx.doi.org/10.5370/KIEE.2010.59.10.1882

Online Fault Diagnosis of Motor Using Electric Signatures  

Kim, Lark-Kyo (건국대학교 공과대학 전기공학과)
Lim, Jung-Hwan (건국대학교 산업대학원 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.10, 2010 , pp. 1882-1888 More about this Journal
Abstract
It is widely known that ESA(Electric Signature Analysis) method is very useful one for fault diagnosis of an induction motor. Online fault diagnosis system of induction motors using LabVIEW is proposed to detect the fault of broken rotor bars and shorted turns in stator. This system is not model-based system of induction motor but LabVIEW-based fault diagnosis system using FFT spectrum of stator current in faulty motor without estimating of motor parameters. FFT of stator current in faulty induction motor is measured and compared with various reference fault data in data base to diagnose the fault. This paper is focused on to predict and diagnose of the health state of induction motors in steady state. Also, it can be given to motor operator and maintenance team in order to enhance an availability and maintainability of induction motors. Experimental results are demonstrated that the proposed system is very useful to diagnose the fault and to implement the predictive maintenance of induction motors.
Keywords
Online fault diagnosis; Broken rotor bar; Shorted turns in stator; FFT spectrum of stator current; LabVIEW-based fault diagnosis;
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