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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 935048, 7 pages
http://dx.doi.org/10.1155/2013/935048
Diagnosis of Short-Circuit Fault in Large-Scale Permanent-Magnet Wind Power Generator Based on CMAC
Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
Received 28 September 2012; Accepted 17 December 2012
Academic Editor: Zheng-Guang Wu
Copyright © 2013 Chin-Tsung Hsieh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This study proposes a method based on the cerebellar model arithmetic controller (CMAC) for fault diagnosis of large-scale permanent-magnet wind power generators and compares the results with Error Back Propagation (EBP). The diagnosis is based on the short-circuit faults in permanent-magnet wind power generators, magnetic field change, and temperature change. Since CMAC is characterized by inductive ability, associative ability, quick response, and similar input signals exciting similar memories, it has an excellent effect as an intelligent fault diagnosis implement. The experimental results suggest that faults can be diagnosed effectively after only training CMAC 10 times. In comparison to training 151 times for EBP, CMAC is better than EBP in terms of training speed.