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Wavelet networks (WNs) are an efficient model of nonlinear signal processing developed in recent years. This paper presents a comparative study of WN efficiency for the detection of incipient faults of power transformers. After 700 groups of training and testing gases-in-oil samples are processed by fuzzy technology, we compare and analyze the network training process and simulation results of five WNs which include two types of WNs with two different activation functions and evolving WN. A lot of diagnostic examples show that the diagnostic accuracy and efficiency of the proposed five WN approaches prevail those of the conventional back-propagation neural-network method and are suitable for faults diagnosis of power transformers, especially with the evolving WN achieving superior performance.
Published in:
Power Delivery, IEEE Transactions on
(Volume:24
,
Issue:
1
)
Date of Publication: Jan. 2009
- Page(s):
- 187 - 194
- ISSN :
- 0885-8977
- INSPEC Accession Number:
- 10370574
- Digital Object Identifier :
- 10.1109/TPWRD.2008.2002974
- Product Type:
- Journals & Magazines
- Date of Publication :
- 12 December 2008
- Date of Current Version :
- 22 December 2008
- Issue Date :
- Jan. 2009
- Sponsored by :
- IEEE Power & Energy Society
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