Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks

Among the distribution network faults, single-phase grounding faults have the greatest probability. The faults are often accompanied by arcs in the grounding point soil. This type of fault current has a small amplitude and seldom can obtain field record data. A soil arc grounding fault is tested on...

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Autores principales:	Haoran Chen, Xin Lin, Guanhua Li, Jianyuan Xu, Hui Li, Shuai Wang
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Technology T Telecommunication TK5101-6720
Acceso en línea:	https://doaj.org/article/2e4a051c35f0481e8a711137c9e15cc5
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spelling	oai:doaj.org-article:2e4a051c35f0481e8a711137c9e15cc52021-11-15T01:19:50ZExperimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks1530-867710.1155/2021/1875068https://doaj.org/article/2e4a051c35f0481e8a711137c9e15cc52021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/1875068https://doaj.org/toc/1530-8677Among the distribution network faults, single-phase grounding faults have the greatest probability. The faults are often accompanied by arcs in the grounding point soil. This type of fault current has a small amplitude and seldom can obtain field record data. A soil arc grounding fault is tested on a realistic-distribution-network-experimental-platform (RDNEP), and it is concluded that the soil-arc-grounding-fault (SAGF) has three main characteristics: hysteresis, nonlinearity, and asymmetry. By comparing with the characteristics of common arc models, it is pointed out that common arc models cannot accurately fit the characteristics of SAGF. This paper proposes and establishes a double exponential function arc model. Through the comparison of simulation waveforms with experimental data, it is verified that the numerical simulation method proposed in this paper can simulate the development process of SAGF more accurately. Furthermore, the equivalence of RDNEP is verified on the real distribution network system (RDNS). On this basis, analyzed the arc characteristic changes of different SAGF development cycles. Finally, by studying the applicability of the proposed model in simulating ground faults in grass and gravel roads, it is verified that the model proposed in this paper has a strong generalization capability. The research has laid a theoretical foundation for a detection algorithm that is based on the characteristics of SAGF.Haoran ChenXin LinGuanhua LiJianyuan XuHui LiShuai WangHindawi-WileyarticleTechnologyTTelecommunicationTK5101-6720ENWireless Communications and Mobile Computing, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Technology T Telecommunication TK5101-6720
spellingShingle	Technology T Telecommunication TK5101-6720 Haoran Chen Xin Lin Guanhua Li Jianyuan Xu Hui Li Shuai Wang Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
description	Among the distribution network faults, single-phase grounding faults have the greatest probability. The faults are often accompanied by arcs in the grounding point soil. This type of fault current has a small amplitude and seldom can obtain field record data. A soil arc grounding fault is tested on a realistic-distribution-network-experimental-platform (RDNEP), and it is concluded that the soil-arc-grounding-fault (SAGF) has three main characteristics: hysteresis, nonlinearity, and asymmetry. By comparing with the characteristics of common arc models, it is pointed out that common arc models cannot accurately fit the characteristics of SAGF. This paper proposes and establishes a double exponential function arc model. Through the comparison of simulation waveforms with experimental data, it is verified that the numerical simulation method proposed in this paper can simulate the development process of SAGF more accurately. Furthermore, the equivalence of RDNEP is verified on the real distribution network system (RDNS). On this basis, analyzed the arc characteristic changes of different SAGF development cycles. Finally, by studying the applicability of the proposed model in simulating ground faults in grass and gravel roads, it is verified that the model proposed in this paper has a strong generalization capability. The research has laid a theoretical foundation for a detection algorithm that is based on the characteristics of SAGF.
format	article
author	Haoran Chen Xin Lin Guanhua Li Jianyuan Xu Hui Li Shuai Wang
author_facet	Haoran Chen Xin Lin Guanhua Li Jianyuan Xu Hui Li Shuai Wang
author_sort	Haoran Chen
title	Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
title_short	Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
title_full	Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
title_fullStr	Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
title_full_unstemmed	Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks
title_sort	experimental research and numerical simulation of single soil-arc-grounding-fault in distribution networks
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/2e4a051c35f0481e8a711137c9e15cc5
work_keys_str_mv	AT haoranchen experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks AT xinlin experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks AT guanhuali experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks AT jianyuanxu experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks AT huili experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks AT shuaiwang experimentalresearchandnumericalsimulationofsinglesoilarcgroundingfaultindistributionnetworks
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Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks

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