GIS partial discharge pattern recognition via a novel capsule deep graph convolutional network

Autor: Yanxin Wang, Jing Yan, Xinyu Ye, Zhenkang Qi, Jianhua Wang, Yingsan Geng
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: IET Generation, Transmission & Distribution, Vol 16, Iss 14, Pp 2903-2912 (2022)
Druh dokumentu: article
ISSN: 1751-8695
1751-8687
DOI: 10.1049/gtd2.12508
Popis: Abstract Deep learning (DL) has attracted significant attention in partial discharge (PD) pattern recognition of gas‐insulated switchgear (GIS). However, the existing DL method extracts numerical information and ignores spatial correlation information. In addition, once the sample size is reduced, model performance is severely degraded. To address these issues, a novel capsule deep graph convolutional network (CDGCN) is employed for GIS PD pattern recognition. First, the GIS PD data is transformed to graph data. Then, the CDGCN is established for GIS PD pattern recognition. The introduction of a ChannelSortPooling layer enriches the graph representation information and filters out the feature values with higher information content. In addition, the multi‐view graph representation is converted to a capsule form, and a capsule network with stronger feature extraction capability is introduced to improve the accuracy of the final graph representation. The results reveal that the proposed CDGCN can effectively diagnose the GIS PD and is more accurate than the traditional DL method. The proposed CDGCN can handle small samples pattern recognition problems and provides a reliable reference for GIS PD pattern recognition.
Databáze: Directory of Open Access Journals
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