A filter-based Semi-supervised feature selection approach for power transformer fault diagnosis based on Dissolved Gas Analysis
编号:266
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更新:2022-08-29 15:50:34 浏览:193次
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摘要
Collecting labeled Dissolved Gas Analysis (DGA) data is difficult because the determination of the transformer fault is time-consuming and expensive in the transformer substation, but DGA data without labels is easier to obtain. In order to make full use of DGA data with few labels and a large number of unlabeled data to improve the transformer fault diagnosis rate, it is an important to study the DGA fault diagnosis method based on semi-supervised learning for solving practical problems in the field. Therefore, the paper proposed a novel filter-based semi-supervised feature selection method for building fault diagnosis model and selecting optimal DGA features. The method is test by using IEC T10 dataset and compared with traditional supervised diagnostic models. The results show that the proposed method works in optimizing DGA features and has strong robustness in solving small sample DGA classification problems.
关键词
Dissolved Gas Analysis,fault diagnosis,semi- supervised learning,feature selection
稿件作者
Xuemin Tan
College of Automation;Chengdu University of Information Technology
Guo Chao
Chengdu Power Supply Company; State Grid
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