Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network

When a single-phase ground fault occurs in a distribution network, it is generally allowed to operate with faults for one to two hours, which may lead to further development of the fault and even threaten the safe operation of the power system. Therefore, when a small current system has a ground fau...

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Main Authors: Jiefeng Liang, Tianjun Jing, Huanna Niu, Jiangbo Wang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9035471/
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author Jiefeng Liang
Tianjun Jing
Huanna Niu
Jiangbo Wang
author_facet Jiefeng Liang
Tianjun Jing
Huanna Niu
Jiangbo Wang
author_sort Jiefeng Liang
collection DOAJ
description When a single-phase ground fault occurs in a distribution network, it is generally allowed to operate with faults for one to two hours, which may lead to further development of the fault and even threaten the safe operation of the power system. Therefore, when a small current system has a ground fault, it must be quickly diagnosed to shorten the time of operation with fault. In this paper, an adaptive convolutional neural network (ACNN)-based fault line selection method is proposed for a distribution network. This method improves the feature extraction ability of the network by improving the pooling model. Compared with deep belief network (DBN), it can improve the accuracy of fault classification by 7.86% and reduce the training time by 42.7%. On this basis, the secondary fault location is identified using the principle of two-terminal fault location. In this research, fault data obtained by Simulink simulation is used as training set, and ACNN model is built based on TensorFlow framework. The analysis of results proves that the model has a high fault recognition rate and fast convergence speed. It can be used as an auxiliary hand for fault diagnosis in distribution networks.
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spelling doaj.art-cae47d3073784a6ebc56cb9eab5963822022-12-21T21:27:12ZengIEEEIEEE Access2169-35362020-01-018540355404310.1109/ACCESS.2020.29805739035471Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural NetworkJiefeng Liang0https://orcid.org/0000-0003-2590-8923Tianjun Jing1Huanna Niu2Jiangbo Wang3College of Information and Electrical Engineering, China Agricultural University, Beijing, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing, ChinaWhen a single-phase ground fault occurs in a distribution network, it is generally allowed to operate with faults for one to two hours, which may lead to further development of the fault and even threaten the safe operation of the power system. Therefore, when a small current system has a ground fault, it must be quickly diagnosed to shorten the time of operation with fault. In this paper, an adaptive convolutional neural network (ACNN)-based fault line selection method is proposed for a distribution network. This method improves the feature extraction ability of the network by improving the pooling model. Compared with deep belief network (DBN), it can improve the accuracy of fault classification by 7.86% and reduce the training time by 42.7%. On this basis, the secondary fault location is identified using the principle of two-terminal fault location. In this research, fault data obtained by Simulink simulation is used as training set, and ACNN model is built based on TensorFlow framework. The analysis of results proves that the model has a high fault recognition rate and fast convergence speed. It can be used as an auxiliary hand for fault diagnosis in distribution networks.https://ieeexplore.ieee.org/document/9035471/Convolutional neural networkadaptive pooling modeltwo-terminal fault locationdistribution networksingle-phase ground fault
spellingShingle Jiefeng Liang
Tianjun Jing
Huanna Niu
Jiangbo Wang
Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
IEEE Access
Convolutional neural network
adaptive pooling model
two-terminal fault location
distribution network
single-phase ground fault
title Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
title_full Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
title_fullStr Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
title_full_unstemmed Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
title_short Two-Terminal Fault Location Method of Distribution Network Based on Adaptive Convolution Neural Network
title_sort two terminal fault location method of distribution network based on adaptive convolution neural network
topic Convolutional neural network
adaptive pooling model
two-terminal fault location
distribution network
single-phase ground fault
url https://ieeexplore.ieee.org/document/9035471/
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AT tianjunjing twoterminalfaultlocationmethodofdistributionnetworkbasedonadaptiveconvolutionneuralnetwork
AT huannaniu twoterminalfaultlocationmethodofdistributionnetworkbasedonadaptiveconvolutionneuralnetwork
AT jiangbowang twoterminalfaultlocationmethodofdistributionnetworkbasedonadaptiveconvolutionneuralnetwork