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Application of parzen window estimation for incipient fault diagnosis in power transformers

Islam, M.M., Lee, G. and Hettiwatte, S.N. (2018) Application of parzen window estimation for incipient fault diagnosis in power transformers. High Voltage, 3 (4). pp. 303-309.

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Abstract

Accurate faults diagnosis in power transformers is important for utilities to schedule maintenance and minimises the operation cost. Dissolved gas analysis (DGA) is one of the proven and widely accepted tools for incipient fault diagnosis in power transformers. To improve the accuracy and solve the cases that cannot be classified using Rogers’ Ratios, IEC ratios and Duval triangles methods, a novel DGA technique based on Parzen window estimation have been presented in this study. The model uses the concentrations of five combustible hydrocarbon gases: methane, ethane, ethylene, acetylene and hydrogen to compute the probability of transformers fault categories. Performance of the proposed method has been evaluated against different conventional techniques and artificial intelligence-based approaches such as support vector machines, artificial neural networks, rough sets analysis and extreme learning machines for the same set of transformers. A comparison with other soft computing approaches shows that the proposed method is reliable and effective for incipient fault diagnosis in power transformers.

Item Type: Journal Article
Murdoch Affiliation: School of Engineering and Information Technology
Publisher: The Institution of Engineering and Technology
Copyright: © 2018 The Institution of Engineering and Technology
URI: http://researchrepository.murdoch.edu.au/id/eprint/43150
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