A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1109/PESGM41954.2020.9282111 http://hdl.handle.net/11449/233078 |
Resumo: | Long cylindrical rods are commonly employed to grounding system in transmission lines and they can be buried in stratified soils. In this condition, the grounding impedance is significantly modified by the presence of another layer of soil where analytical formulae are not found in literature. Additionally, frequency dependence of soil parameters (resistivity \rho and permittivity \varepsilon) is an important effect that has to be taken in to account for a precise electromagnetic analysis. To tackle these problems, a new approach is proposed to compute grounding impedance of vertical rods buried in a stratified soil. This approach is based on the equivalent quadripole representation rod seen as short transmission lines in each layer of ground. In this paper, the frequency dependence of soil parameters is considered individually in soil composed by several layers of ground. This approach is compared with numerical and analytical methods proposed in the literature and has presented a good agreement. Simulation results show that adding another layer of soil and considering the frequency dependence of electrical parameters of soil cause a significant reduction in the voltage peaks of GPR (Grounding Potential Rise) waveforms. |
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Repositório Institucional da UNESP |
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spelling |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soilLong cylindrical rods are commonly employed to grounding system in transmission lines and they can be buried in stratified soils. In this condition, the grounding impedance is significantly modified by the presence of another layer of soil where analytical formulae are not found in literature. Additionally, frequency dependence of soil parameters (resistivity \rho and permittivity \varepsilon) is an important effect that has to be taken in to account for a precise electromagnetic analysis. To tackle these problems, a new approach is proposed to compute grounding impedance of vertical rods buried in a stratified soil. This approach is based on the equivalent quadripole representation rod seen as short transmission lines in each layer of ground. In this paper, the frequency dependence of soil parameters is considered individually in soil composed by several layers of ground. This approach is compared with numerical and analytical methods proposed in the literature and has presented a good agreement. Simulation results show that adding another layer of soil and considering the frequency dependence of electrical parameters of soil cause a significant reduction in the voltage peaks of GPR (Grounding Potential Rise) waveforms.University of Campinas School of Electrical and Computer EngineeringSão Paulo State University, Ilha SolteiraSão Paulo State University, Ilha SolteiraUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)Araujo, Anderson R. J.Colqui, Jaimis S. L. [UNESP]Kurokawa, Sergio [UNESP]Pissolato, Jose2022-05-01T03:29:52Z2022-05-01T03:29:52Z2020-08-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/PESGM41954.2020.9282111IEEE Power and Energy Society General Meeting, v. 2020-August.1944-99331944-9925http://hdl.handle.net/11449/23307810.1109/PESGM41954.2020.92821112-s2.0-85099138539Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIEEE Power and Energy Society General Meetinginfo:eu-repo/semantics/openAccess2024-07-04T19:11:45Zoai:repositorio.unesp.br:11449/233078Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:18:25.705643Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
title |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
spellingShingle |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil Araujo, Anderson R. J. |
title_short |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
title_full |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
title_fullStr |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
title_full_unstemmed |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
title_sort |
A new approach to compute grounding impedance of rods in a frequency dependent multi-layer soil |
author |
Araujo, Anderson R. J. |
author_facet |
Araujo, Anderson R. J. Colqui, Jaimis S. L. [UNESP] Kurokawa, Sergio [UNESP] Pissolato, Jose |
author_role |
author |
author2 |
Colqui, Jaimis S. L. [UNESP] Kurokawa, Sergio [UNESP] Pissolato, Jose |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Araujo, Anderson R. J. Colqui, Jaimis S. L. [UNESP] Kurokawa, Sergio [UNESP] Pissolato, Jose |
description |
Long cylindrical rods are commonly employed to grounding system in transmission lines and they can be buried in stratified soils. In this condition, the grounding impedance is significantly modified by the presence of another layer of soil where analytical formulae are not found in literature. Additionally, frequency dependence of soil parameters (resistivity \rho and permittivity \varepsilon) is an important effect that has to be taken in to account for a precise electromagnetic analysis. To tackle these problems, a new approach is proposed to compute grounding impedance of vertical rods buried in a stratified soil. This approach is based on the equivalent quadripole representation rod seen as short transmission lines in each layer of ground. In this paper, the frequency dependence of soil parameters is considered individually in soil composed by several layers of ground. This approach is compared with numerical and analytical methods proposed in the literature and has presented a good agreement. Simulation results show that adding another layer of soil and considering the frequency dependence of electrical parameters of soil cause a significant reduction in the voltage peaks of GPR (Grounding Potential Rise) waveforms. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-02 2022-05-01T03:29:52Z 2022-05-01T03:29:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1109/PESGM41954.2020.9282111 IEEE Power and Energy Society General Meeting, v. 2020-August. 1944-9933 1944-9925 http://hdl.handle.net/11449/233078 10.1109/PESGM41954.2020.9282111 2-s2.0-85099138539 |
url |
http://dx.doi.org/10.1109/PESGM41954.2020.9282111 http://hdl.handle.net/11449/233078 |
identifier_str_mv |
IEEE Power and Energy Society General Meeting, v. 2020-August. 1944-9933 1944-9925 10.1109/PESGM41954.2020.9282111 2-s2.0-85099138539 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
IEEE Power and Energy Society General Meeting |
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 |
|
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1808129186429140992 |