Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks

Deep neural networks (DNNs) are widely used for fault classification using partial discharges (PDs) to evaluate various electrical apparatuses and achieve high classification accuracy pertaining to trained PD faults. However, there is a risk of false alarm in the case of untrained PD faults because...

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Main Authors: Vo-Nguyen Tuyet-Doan, Ha-Anh Pho, Byeongho Lee, Yong-Hwa Kim
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9444415/
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author Vo-Nguyen Tuyet-Doan
Ha-Anh Pho
Byeongho Lee
Yong-Hwa Kim
author_facet Vo-Nguyen Tuyet-Doan
Ha-Anh Pho
Byeongho Lee
Yong-Hwa Kim
author_sort Vo-Nguyen Tuyet-Doan
collection DOAJ
description Deep neural networks (DNNs) are widely used for fault classification using partial discharges (PDs) to evaluate various electrical apparatuses and achieve high classification accuracy pertaining to trained PD faults. However, there is a risk of false alarm in the case of untrained PD faults because it is difficult for DNNs to predict data that were not included in the training process. In this paper, we research classification problems of unknown classes using PDs in gas-insulated switchgears (GISs) and propose a deep ensemble model to obtain the confidence of output probability and determine thresholds to detect unknown fault classes. The proposed model was verified by real-world phase-resolved PD (PRPD) experiments using online ultra-high frequency (UHF) PD measurement systems. The experimental results show that the proposed model achieves better unknown detection performance for the untrained PD faults and retains the classification performance for the trained PD faults.
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spelling doaj.art-25baff4c346640c7b80eed21073867cb2022-12-21T19:20:55ZengIEEEIEEE Access2169-35362021-01-019805248053410.1109/ACCESS.2021.30849509444415Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural NetworksVo-Nguyen Tuyet-Doan0https://orcid.org/0000-0002-2156-4708Ha-Anh Pho1https://orcid.org/0000-0001-9444-0020Byeongho Lee2https://orcid.org/0000-0001-8999-0861Yong-Hwa Kim3https://orcid.org/0000-0003-2183-5085Department of Electronic Engineering, Myongji University, Yongin, South KoreaDepartment of Electronic Engineering, Myongji University, Yongin, South KoreaDepartment of Electrical and Computer Engineering, Institute of New Media and Communications (INMC), Seoul National University (SNU), Seoul, South KoreaDepartment of Data Science, Korea National University of Transportation, Uiwang, South KoreaDeep neural networks (DNNs) are widely used for fault classification using partial discharges (PDs) to evaluate various electrical apparatuses and achieve high classification accuracy pertaining to trained PD faults. However, there is a risk of false alarm in the case of untrained PD faults because it is difficult for DNNs to predict data that were not included in the training process. In this paper, we research classification problems of unknown classes using PDs in gas-insulated switchgears (GISs) and propose a deep ensemble model to obtain the confidence of output probability and determine thresholds to detect unknown fault classes. The proposed model was verified by real-world phase-resolved PD (PRPD) experiments using online ultra-high frequency (UHF) PD measurement systems. The experimental results show that the proposed model achieves better unknown detection performance for the untrained PD faults and retains the classification performance for the trained PD faults.https://ieeexplore.ieee.org/document/9444415/Fault diagnosisconvolutional neural network (CNN)ensemble modelpartial discharges (PDs)gas-insulated switchgear (GIS)
spellingShingle Vo-Nguyen Tuyet-Doan
Ha-Anh Pho
Byeongho Lee
Yong-Hwa Kim
Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
IEEE Access
Fault diagnosis
convolutional neural network (CNN)
ensemble model
partial discharges (PDs)
gas-insulated switchgear (GIS)
title Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
title_full Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
title_fullStr Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
title_full_unstemmed Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
title_short Deep Ensemble Model for Unknown Partial Discharge Diagnosis in Gas-Insulated Switchgears Using Convolutional Neural Networks
title_sort deep ensemble model for unknown partial discharge diagnosis in gas insulated switchgears using convolutional neural networks
topic Fault diagnosis
convolutional neural network (CNN)
ensemble model
partial discharges (PDs)
gas-insulated switchgear (GIS)
url https://ieeexplore.ieee.org/document/9444415/
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AT byeongholee deepensemblemodelforunknownpartialdischargediagnosisingasinsulatedswitchgearsusingconvolutionalneuralnetworks
AT yonghwakim deepensemblemodelforunknownpartialdischargediagnosisingasinsulatedswitchgearsusingconvolutionalneuralnetworks