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- Title
Online Anomaly Detection of Brushless DC Motor Using Current Monitoring Technique.
- Authors
XIAOHANG JIN; CHOW, TOMMY W. S.; KWOK-LEUNG TSUI
- Abstract
Brushless DC (BLDC) motor fan is one of the most widely used electronic components for thermal management. Failures of fans will cause seriously problems, such as overheat, shut down and even burnt, in their host systems. Thus, anomaly detection of fan gains increasing attention. This paper investigates into anomaly detection of generalized-roughness bearing faults in BLDC motor fan using current monitoring technique. In the experiment, it was found that there were about 9% changes in current and rotary speed of fan when the BLDC motor behaved unusual. Mathematical modeling of BLDC motor and physics-of-failure analysis were employed to explain the experimental findings.
- Subjects
ANOMALY detection (Computer security); BRUSHLESS direct current electric motors; THERMAL management (Electronic packaging); BRUSHLESS electric motors; DEMODULATION; MATHEMATICAL models
- Publication
International Journal of Performability Engineering, 2014, Vol 10, Issue 3, p263
- ISSN
0973-1318
- Publication type
Article