The Impact of Transmission Line Modeling on Lightning Overvoltage
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/en16031343 http://hdl.handle.net/11449/249650 |
Resumo: | In most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is neglected, the line voltage definition corresponds to the wire potential formulation, and soil resistivity is considered frequency-independent. These considerations can lead to erroneous measurements of the occurrences of the backflashover phenomenon in the insulator strings of transmission line. In this sense, this paper presents a systematic sensitivity analysis study of lightning overvoltage in insulator strings considering more physically consistent models of the transmission line, which consider the displacement current, ground admittance correction, rigorous voltage definition, and frequency-dependent soil parameters. According to the results, for the case study, transmission line parameters modeling can present a maximum percentual difference of around 71.54%, considering the frequency range of first strokes. This difference leads to a percent difference of around 5.25% in the maximum overvoltage across the insulator strings. These differences confirm that the occurrence or not of backflashover in the insulator strings, including the disruption time, are sensitive to the line model considered. |
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Repositório Institucional da UNESP |
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The Impact of Transmission Line Modeling on Lightning OvervoltageEMT-type simulatorsfrequency-dependent soil parameterslightning overvoltagestransmission line modelingIn most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is neglected, the line voltage definition corresponds to the wire potential formulation, and soil resistivity is considered frequency-independent. These considerations can lead to erroneous measurements of the occurrences of the backflashover phenomenon in the insulator strings of transmission line. In this sense, this paper presents a systematic sensitivity analysis study of lightning overvoltage in insulator strings considering more physically consistent models of the transmission line, which consider the displacement current, ground admittance correction, rigorous voltage definition, and frequency-dependent soil parameters. According to the results, for the case study, transmission line parameters modeling can present a maximum percentual difference of around 71.54%, considering the frequency range of first strokes. This difference leads to a percent difference of around 5.25% in the maximum overvoltage across the insulator strings. These differences confirm that the occurrence or not of backflashover in the insulator strings, including the disruption time, are sensitive to the line model considered.School of Electrical and Computer Engineering State University of Campinas—UNICAMPElectrical Engineering Department Federal University of São João del-Rei—UFSJDepartment of Electrical Engineering São Paulo State University—UNESPDepartment of Electrical Engineering São Paulo State University—UNESPUniversidade Estadual de Campinas (UNICAMP)Universidade Federal de Sergipe (UFS)Universidade Estadual Paulista (UNESP)Leon Colqui, Jaimis SajidRibeiro de Moura, Rodolfo AntônioDe Oliveira Schroeder, Marco AurélioFilho, José PissolatoKurokawa, Sérgio [UNESP]2023-07-29T16:05:31Z2023-07-29T16:05:31Z2023-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/en16031343Energies, v. 16, n. 3, 2023.1996-1073http://hdl.handle.net/11449/24965010.3390/en160313432-s2.0-85147941818Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnergiesinfo:eu-repo/semantics/openAccess2023-07-29T16:05:31Zoai:repositorio.unesp.br:11449/249650Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T16:05:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
title |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
spellingShingle |
The Impact of Transmission Line Modeling on Lightning Overvoltage Leon Colqui, Jaimis Sajid EMT-type simulators frequency-dependent soil parameters lightning overvoltages transmission line modeling |
title_short |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
title_full |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
title_fullStr |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
title_full_unstemmed |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
title_sort |
The Impact of Transmission Line Modeling on Lightning Overvoltage |
author |
Leon Colqui, Jaimis Sajid |
author_facet |
Leon Colqui, Jaimis Sajid Ribeiro de Moura, Rodolfo Antônio De Oliveira Schroeder, Marco Aurélio Filho, José Pissolato Kurokawa, Sérgio [UNESP] |
author_role |
author |
author2 |
Ribeiro de Moura, Rodolfo Antônio De Oliveira Schroeder, Marco Aurélio Filho, José Pissolato Kurokawa, Sérgio [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Federal de Sergipe (UFS) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Leon Colqui, Jaimis Sajid Ribeiro de Moura, Rodolfo Antônio De Oliveira Schroeder, Marco Aurélio Filho, José Pissolato Kurokawa, Sérgio [UNESP] |
dc.subject.por.fl_str_mv |
EMT-type simulators frequency-dependent soil parameters lightning overvoltages transmission line modeling |
topic |
EMT-type simulators frequency-dependent soil parameters lightning overvoltages transmission line modeling |
description |
In most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is neglected, the line voltage definition corresponds to the wire potential formulation, and soil resistivity is considered frequency-independent. These considerations can lead to erroneous measurements of the occurrences of the backflashover phenomenon in the insulator strings of transmission line. In this sense, this paper presents a systematic sensitivity analysis study of lightning overvoltage in insulator strings considering more physically consistent models of the transmission line, which consider the displacement current, ground admittance correction, rigorous voltage definition, and frequency-dependent soil parameters. According to the results, for the case study, transmission line parameters modeling can present a maximum percentual difference of around 71.54%, considering the frequency range of first strokes. This difference leads to a percent difference of around 5.25% in the maximum overvoltage across the insulator strings. These differences confirm that the occurrence or not of backflashover in the insulator strings, including the disruption time, are sensitive to the line model considered. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T16:05:31Z 2023-07-29T16:05:31Z 2023-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/en16031343 Energies, v. 16, n. 3, 2023. 1996-1073 http://hdl.handle.net/11449/249650 10.3390/en16031343 2-s2.0-85147941818 |
url |
http://dx.doi.org/10.3390/en16031343 http://hdl.handle.net/11449/249650 |
identifier_str_mv |
Energies, v. 16, n. 3, 2023. 1996-1073 10.3390/en16031343 2-s2.0-85147941818 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Energies |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046042697990144 |