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- W4313647009 abstract "Abstract Partial discharge (PD) detection is used to evaluate the insulation status of high‐voltage equipment. The most challenging aspect of traditional PD recognition is extracting features from the discharge signal. Accordingly, this study applied the visual geometry group‐19 (VGG‐19) model to gas‐insulated switchgear (GIS) PD image recognition. A high frequency current transformer and an LDP‐5 inductive sensor measured PD electrical signals emitted by 15‐kV GIS. Next, the Hilbert energy spectrum was obtained by Hilbert transform in the time and frequency domains. Compared with a phase‐resolved PD pattern, the Hilbert spectrum can represent the energy and instantaneous frequency with the time variable. Finally, the VGG‐19 model was applied for PD pattern recognition. For validation, its recognition performance was compared with that of a fractal theory by using a neural network method. The VGG‐19 method is straightforward and has a high PD recognition rate, thereby enabling equipment manufacturers to quickly verify the insulation of GIS during assembly or operation." @default.
- W4313647009 created "2023-01-07" @default.
- W4313647009 creator A5086888290 @default.
- W4313647009 date "2023-01-05" @default.
- W4313647009 modified "2023-10-14" @default.
- W4313647009 title "Application of the convolutional neural network in partial discharge spectrum recognition of power apparatus" @default.
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- W4313647009 doi "https://doi.org/10.1049/smt2.12137" @default.
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