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CLC number: TM343

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Received: 2007-01-10

Revision Accepted: 2007-04-19

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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.8 P.1320~1329

10.1631/jzus.2007.A1320


Rotor broken bar fault diagnosis for induction motors based on double PQ transformation


Author(s):  HUANG Jin, YANG Jia-qiang, NIU Fa-liang

Affiliation(s):  School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   yjq1998@163.com

Key Words:  PQ transformation, Fault diagnosis, Load fluctuation, Fault severity factor, Induction motors


HUANG Jin, YANG Jia-qiang, NIU Fa-liang. Rotor broken bar fault diagnosis for induction motors based on double PQ transformation[J]. Journal of Zhejiang University Science A, 2007, 8(8): 1320~1329.

@article{title="Rotor broken bar fault diagnosis for induction motors based on double PQ transformation",
author="HUANG Jin, YANG Jia-qiang, NIU Fa-liang",
journal="Journal of Zhejiang University Science A",
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pages="1320~1329",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A1320"
}

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%T Rotor broken bar fault diagnosis for induction motors based on double PQ transformation
%A HUANG Jin
%A YANG Jia-qiang
%A NIU Fa-liang
%J Journal of Zhejiang University SCIENCE A
%V 8
%N 8
%P 1320~1329
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A1320

TY - JOUR
T1 - Rotor broken bar fault diagnosis for induction motors based on double PQ transformation
A1 - HUANG Jin
A1 - YANG Jia-qiang
A1 - NIU Fa-liang
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 8
SP - 1320
EP - 1329
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A1320


Abstract: 
A new rotor broken bar fault diagnosis method for induction motors based on the double PQ transformation is presented. By distinguishing the different patterns of the PQ components in the PQ plane, the rotor broken bar fault can be detected. The magnitude of power component directly resulted from rotor fault is used as the fault indicator and the distance between the point of no-load condition and the center of the ellipse as its normalization value. Based on these, the fault severity factor which is completely independent of the inertia and load level is defined. Moreover, a method to reliably discriminate between rotor faults and periodic load fluctuation is presented. Experimental results from a 4 kW induction motor demonstrated the validity of the proposed method.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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