A New Robust Method To Detect Rotor Faults In Salient-pole Synchronous Machines Using Structural Asymmetries

被引：0
|
作者：
Neti, Prabhakar [1 ]
Dehkordi, A. B. [2 ]
Gole, A. M. [2 ]
机构：
[1] Elect & Energy Convers Gen Elect Global Res Ctr, Elect Machines & Drives Lab, Niskayuna, NY 12309 USA
[2] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 2N2, Canada
来源：
2008 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, VOLS 1-5 | 2008年
基金：
加拿大自然科学与工程研究理事会;
关键词：
Broken damper bars; Inter-turn faults; Modified winding function approach (MWFA); Synchronous machine (SM);
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a novel method to detect rotor faults in salient-pole synchronous machines by exploiting small constructional asymmetries in the machine. In order to unambiguously detect the faults, it is very important to identify a signal that is minimally sensitive to the abnormal operating conditions of the machine but highly sensitive to the fault. This paper shows that certain frequency components such as the 30, 90 Hz in the stator current of a 4-pole 60 Hz salient-pole synchronous machine (SM) are good candidates for detecting rotor faults. The paper presents the physical explanation behind these observed frequency components and shows them to be suitable candidates to detect broken damper bars and inter-turn faults in the field winding.
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页码：880 / +
页数：2
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