Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN

Porcelain insulators play an important role in power transmission lines. It is of great significance to improve the accuracy of diagnosis of porcelain insulators’ discharge state and ensure the reliability of power supply. Therefore, this paper presents a diagnosis method of polluted discharge state...

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Main Authors: Kegeng Zhang, Jinyuan Liu, Junshuai Zhong, Yizhou Jing
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Connection Science
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Online Access:http://dx.doi.org/10.1080/09540091.2022.2085666
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author Kegeng Zhang
Jinyuan Liu
Junshuai Zhong
Yizhou Jing
author_facet Kegeng Zhang
Jinyuan Liu
Junshuai Zhong
Yizhou Jing
author_sort Kegeng Zhang
collection DOAJ
description Porcelain insulators play an important role in power transmission lines. It is of great significance to improve the accuracy of diagnosis of porcelain insulators’ discharge state and ensure the reliability of power supply. Therefore, this paper presents a diagnosis method of polluted discharge state of porcelain insulator based on GA-optimised CNN network structure. Firstly, the artificial pollution discharge test of porcelain insulator is carried out. According to the characteristics of leakage current, the discharge development process is divided into five stages: normal state, initial discharge, through discharge, flashover and flashover completion. GA algorithm is used to optimise the parameters of CNN model, and several single models are established simultaneously to compare the progress with the proposed model. The results show that GA has the advantages of global optimisation, less adjustment parameters, etc. It can automatically select the best structure of CNN network, avoid the problem of poor performance of artificial selection of CNN network structure, reduce the time required for parameter selection, and improve the accuracy of diagnosis of polluted discharge state of porcelain insulators, with the diagnosis accuracy as high as 99.2%. The results show that the discharge state of porcelain insulator surface can be judged by leakage current.
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spelling doaj-art-cceb2203476f41ca89ca9a07df78ff962025-08-20T03:04:54ZengTaylor & Francis GroupConnection Science0954-00911360-04942023-12-0135110.1080/09540091.2022.20856662085666Diagnosis of contamination discharge state of porcelain insulators based on GA-CNNKegeng Zhang0Jinyuan Liu1Junshuai Zhong2Yizhou Jing3China Three Gorges UniversityChina Three Gorges UniversityChina Three Gorges UniversityChina Three Gorges UniversityPorcelain insulators play an important role in power transmission lines. It is of great significance to improve the accuracy of diagnosis of porcelain insulators’ discharge state and ensure the reliability of power supply. Therefore, this paper presents a diagnosis method of polluted discharge state of porcelain insulator based on GA-optimised CNN network structure. Firstly, the artificial pollution discharge test of porcelain insulator is carried out. According to the characteristics of leakage current, the discharge development process is divided into five stages: normal state, initial discharge, through discharge, flashover and flashover completion. GA algorithm is used to optimise the parameters of CNN model, and several single models are established simultaneously to compare the progress with the proposed model. The results show that GA has the advantages of global optimisation, less adjustment parameters, etc. It can automatically select the best structure of CNN network, avoid the problem of poor performance of artificial selection of CNN network structure, reduce the time required for parameter selection, and improve the accuracy of diagnosis of polluted discharge state of porcelain insulators, with the diagnosis accuracy as high as 99.2%. The results show that the discharge state of porcelain insulator surface can be judged by leakage current.http://dx.doi.org/10.1080/09540091.2022.2085666genetic algorithmconvolutional neural networkporcelain insulatorpollution dischargestate diagnosis
spellingShingle Kegeng Zhang
Jinyuan Liu
Junshuai Zhong
Yizhou Jing
Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
Connection Science
genetic algorithm
convolutional neural network
porcelain insulator
pollution discharge
state diagnosis
title Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
title_full Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
title_fullStr Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
title_full_unstemmed Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
title_short Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN
title_sort diagnosis of contamination discharge state of porcelain insulators based on ga cnn
topic genetic algorithm
convolutional neural network
porcelain insulator
pollution discharge
state diagnosis
url http://dx.doi.org/10.1080/09540091.2022.2085666
work_keys_str_mv AT kegengzhang diagnosisofcontaminationdischargestateofporcelaininsulatorsbasedongacnn
AT jinyuanliu diagnosisofcontaminationdischargestateofporcelaininsulatorsbasedongacnn
AT junshuaizhong diagnosisofcontaminationdischargestateofporcelaininsulatorsbasedongacnn
AT yizhoujing diagnosisofcontaminationdischargestateofporcelaininsulatorsbasedongacnn