Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
Texto Completo: | http://www.repositorio.ufc.br/handle/riufc/41031 |
Resumo: | HVDC systems are becomingmore common worldwide, specially in Brazil, since the adoption of such systemfor Itaipu’s hydroelectric complex in the 1980’s. Today, the country has the Xingu-Estreito bipole, with length of 2375 km. This system crosses a region with high lightning incidence, a phenomenon which causes faults in power systems. The most widely used model for the positioning of the arrestor cables over a transmission line is the electrogeometric model. This model, however, does not take into account the different potentials over the structure’s surface, and therefore presents significant inaccuracies when assessing the risk of lightning strikes on structures such as a HVDC line. This work then used the Electric Field Deflection (EFD) model with the aid finite elements. Four levels of lightning are assessed (I, II, III and IV), with current peaks of 3.9, 5.4, 10.1 and 15.7 kA. It was verified that the positive pole tends to attract most of the lightning with shielding failures width (SFW) of 12, 8, 4 and 0 m. It was then proposed to move the arrestor cables horizontally. The study indicates that this horizontal shifting of the cables in 5 and 8 m toward the side with larger chance of direct incidence reduces the shielding failure widths in 50% for peak current of 3.9 kA and almost eliminates the strikes for lightning with peak currents of 5.4, 10.1 and 15.7 kA. |
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Analysis of the incidence of direct lightning over a HVDC transmission line through EFD modelLinha de transmissão - ProteçãoPára-raiosRaioTransmission lineLightningHVDC systems are becomingmore common worldwide, specially in Brazil, since the adoption of such systemfor Itaipu’s hydroelectric complex in the 1980’s. Today, the country has the Xingu-Estreito bipole, with length of 2375 km. This system crosses a region with high lightning incidence, a phenomenon which causes faults in power systems. The most widely used model for the positioning of the arrestor cables over a transmission line is the electrogeometric model. This model, however, does not take into account the different potentials over the structure’s surface, and therefore presents significant inaccuracies when assessing the risk of lightning strikes on structures such as a HVDC line. This work then used the Electric Field Deflection (EFD) model with the aid finite elements. Four levels of lightning are assessed (I, II, III and IV), with current peaks of 3.9, 5.4, 10.1 and 15.7 kA. It was verified that the positive pole tends to attract most of the lightning with shielding failures width (SFW) of 12, 8, 4 and 0 m. It was then proposed to move the arrestor cables horizontally. The study indicates that this horizontal shifting of the cables in 5 and 8 m toward the side with larger chance of direct incidence reduces the shielding failure widths in 50% for peak current of 3.9 kA and almost eliminates the strikes for lightning with peak currents of 5.4, 10.1 and 15.7 kA.Energies2019-04-24T17:39:44Z2019-04-24T17:39:44Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRODRIGUES, E. M. et. al. Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model. Energies, v. 9, n. 1, p 555-72, fev. 2019.1996-1073http://www.repositorio.ufc.br/handle/riufc/41031Rodrigues, Ednardo MoreiraPontes, Ricardo Silva ThéBandeira, João Henrique LimaAguiar, Victor de Paula Brandãoinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-12-06T17:09:32Zoai:repositorio.ufc.br:riufc/41031Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2023-12-06T17:09:32Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
title |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
spellingShingle |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model Rodrigues, Ednardo Moreira Linha de transmissão - Proteção Pára-raios Raio Transmission line Lightning |
title_short |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
title_full |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
title_fullStr |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
title_full_unstemmed |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
title_sort |
Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model |
author |
Rodrigues, Ednardo Moreira |
author_facet |
Rodrigues, Ednardo Moreira Pontes, Ricardo Silva Thé Bandeira, João Henrique Lima Aguiar, Victor de Paula Brandão |
author_role |
author |
author2 |
Pontes, Ricardo Silva Thé Bandeira, João Henrique Lima Aguiar, Victor de Paula Brandão |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Rodrigues, Ednardo Moreira Pontes, Ricardo Silva Thé Bandeira, João Henrique Lima Aguiar, Victor de Paula Brandão |
dc.subject.por.fl_str_mv |
Linha de transmissão - Proteção Pára-raios Raio Transmission line Lightning |
topic |
Linha de transmissão - Proteção Pára-raios Raio Transmission line Lightning |
description |
HVDC systems are becomingmore common worldwide, specially in Brazil, since the adoption of such systemfor Itaipu’s hydroelectric complex in the 1980’s. Today, the country has the Xingu-Estreito bipole, with length of 2375 km. This system crosses a region with high lightning incidence, a phenomenon which causes faults in power systems. The most widely used model for the positioning of the arrestor cables over a transmission line is the electrogeometric model. This model, however, does not take into account the different potentials over the structure’s surface, and therefore presents significant inaccuracies when assessing the risk of lightning strikes on structures such as a HVDC line. This work then used the Electric Field Deflection (EFD) model with the aid finite elements. Four levels of lightning are assessed (I, II, III and IV), with current peaks of 3.9, 5.4, 10.1 and 15.7 kA. It was verified that the positive pole tends to attract most of the lightning with shielding failures width (SFW) of 12, 8, 4 and 0 m. It was then proposed to move the arrestor cables horizontally. The study indicates that this horizontal shifting of the cables in 5 and 8 m toward the side with larger chance of direct incidence reduces the shielding failure widths in 50% for peak current of 3.9 kA and almost eliminates the strikes for lightning with peak currents of 5.4, 10.1 and 15.7 kA. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-24T17:39:44Z 2019-04-24T17:39:44Z 2019 |
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 |
RODRIGUES, E. M. et. al. Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model. Energies, v. 9, n. 1, p 555-72, fev. 2019. 1996-1073 http://www.repositorio.ufc.br/handle/riufc/41031 |
identifier_str_mv |
RODRIGUES, E. M. et. al. Analysis of the incidence of direct lightning over a HVDC transmission line through EFD model. Energies, v. 9, n. 1, p 555-72, fev. 2019. 1996-1073 |
url |
http://www.repositorio.ufc.br/handle/riufc/41031 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Energies |
publisher.none.fl_str_mv |
Energies |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da Universidade Federal do Ceará (UFC) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
collection |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
repository.name.fl_str_mv |
Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
bu@ufc.br || repositorio@ufc.br |
_version_ |
1809935795157467136 |