.png){kind=icon}
.png){kind=icon}
Return
Rotor Eccentricity Fault in Induction Motors for Special Applications: Its Effects and Detection
.png){kind=icon}
PRE
AI
P
S
R
K
V
DOI：10.1109/tia.2025.3645016.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
The rotor eccentricity fault is one of the weak links in the reliability chain of induction motors (IM), and the commercially available solutions for its detection are complex, costly, and, most importantly, require service interruption. Therefore, in real-world scenarios, measurements of rotor eccentricity are not common unless its effects become noticeable through increased noise, vibrations, or bearing failure. However, such practices exacerbate the severity of faults and can lead to catastrophic and cascading failures. In this work, the effects of various eccentricity faults are discussed in detail, and a search coil-based solution is explored for online detection of rotor eccentricity events without interrupting machine operation. The proposed method is based on the principle of induced voltage compensation, utilizing coils placed near the air gap to achieve better accuracy. Finite element analysis demonstrates that this technique not only quantifies the extent of eccentricity with reasonable precision but is also capable of generating metadata such as the type of eccentricity and residual bearing life. The effectiveness of the fault detection method is verified through experiments with different configurations of search coils, demonstrating their ability to identify bearing abnormalities and eccentricity faults early, proving its potential to prevent catastrophic failures, especially in critical applications such as nuclear power, chemical, aerospace, and defense.
Keywords:
Canned motor pump
eccentricity fault detection
induction machine
nuclear
unbalanced magnetic pull
Journal
IF:
4.5
Papers:
1.1W
Citations:
3.5W
Organization
Cited Papers