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

被引：0
作者：
Jin Huang
Jia-qiang Yang
Fa-liang Niu
机构：
[1] Zhejiang University,School of Electrical Engineering
来源：
Journal of Zhejiang University-SCIENCE A | 2007年 / 8卷
关键词：
transformation; Fault diagnosis; Load fluctuation; Fault severity factor; Induction motors; TM343;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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收藏
页码：1320 / 1329
页数：9
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