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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.2 P.165~172

http://doi.org/10.1631/jzus.A071297


Diagnosis of stator faults in induction motor based on zero sequence voltage after switch-off


Author(s):  Jia-qiang YANG, Jin HUANG, Tong LIU

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

Corresponding email(s):   ee_huangj@emb.zju.edu.cn

Key Words:  Induction motor, Stator fault diagnosis, Hilbert-Huang transform (HHT), Zero sequence voltage, Empirical mode decomposition (EMD)


Jia-qiang YANG, Jin HUANG, Tong LIU. Diagnosis of stator faults in induction motor based on zero sequence voltage after switch-off[J]. Journal of Zhejiang University Science A, 2008, 9(2): 165~172.

@article{title="Diagnosis of stator faults in induction motor based on zero sequence voltage after switch-off",
author="Jia-qiang YANG, Jin HUANG, Tong LIU",
journal="Journal of Zhejiang University Science A",
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number="2",
pages="165~172",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A071297"
}

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%T Diagnosis of stator faults in induction motor based on zero sequence voltage after switch-off
%A Jia-qiang YANG
%A Jin HUANG
%A Tong LIU
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 2
%P 165~172
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A071297

TY - JOUR
T1 - Diagnosis of stator faults in induction motor based on zero sequence voltage after switch-off
A1 - Jia-qiang YANG
A1 - Jin HUANG
A1 - Tong LIU
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 2
SP - 165
EP - 172
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A071297


Abstract: 
To improve the accuracy of the stator winding fault diagnosis in induction motor, a new diagnostic method based on the hilbert-Huang transform (HHT) was proposed. The ratio of fundamental zero sequence voltage to positive sequence voltage after switch-off was selected as the stator fault characteristic, which could effectively avoid the influence of the supply unbalance and the load fluctuation, and directly represent the asymmetry in the stator. Using the empirical mode decomposition (EMD) based on HHT, the zero sequence voltage after switch-off was decomposed and the fundamental component was extracted. Then, the fault characteristic can be acquired. Experimental results on a 4-kW induction motor demonstrate the feasibility and effectiveness of this method.

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

Reference

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