Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach
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/10.1016/j.prime.2022.100102 http://hdl.handle.net/11449/249619 |
Resumo: | Grounding electrodes play a fundamental role in the operation of power systems. In this context, precise computation of grounding impedance must consider the frequency-dependence of the soil parameters and the ground organized in stratified layers of soil. This paper proposes an ABCD matrix approach to compute the harmonic grounding impedance of rods buried in frequency-dependent stratified soils directly in the frequency domain. This technique is based on the traditional ABCD matrix used for overhead multi-phase transmission lines extended to grounding systems. In this approach, each rod segment is modeled as a short transmission line where the equivalent harmonic grounding impedance is calculated. Then, the Ground Potential Rise (GPR) waveforms are computed by lightning currents injected into the rods buried in different scenarios. Results indicated that the ABCD matrix approach has shown a good agreement with those obtained using a full-wave electromagnetic software FEKO. The frequency-dependence of the soil electrical parameters causes a significant modification in the harmonic impedance of grounding rods which reduces the GPR peaks considerably, being this reduction more pronounced in homogeneous and 2-layer soils. The proposed technique is an attractive tool since that considers the frequency dependence on each layer of soil, with a low computational cost and good accuracy from 100 Hz up to 1 MHz. |
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Repositório Institucional da UNESP |
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Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approachElectromagnetic transientsFrequency-dependent soils parametersGrounding electrodesStratified soilsGrounding electrodes play a fundamental role in the operation of power systems. In this context, precise computation of grounding impedance must consider the frequency-dependence of the soil parameters and the ground organized in stratified layers of soil. This paper proposes an ABCD matrix approach to compute the harmonic grounding impedance of rods buried in frequency-dependent stratified soils directly in the frequency domain. This technique is based on the traditional ABCD matrix used for overhead multi-phase transmission lines extended to grounding systems. In this approach, each rod segment is modeled as a short transmission line where the equivalent harmonic grounding impedance is calculated. Then, the Ground Potential Rise (GPR) waveforms are computed by lightning currents injected into the rods buried in different scenarios. Results indicated that the ABCD matrix approach has shown a good agreement with those obtained using a full-wave electromagnetic software FEKO. The frequency-dependence of the soil electrical parameters causes a significant modification in the harmonic impedance of grounding rods which reduces the GPR peaks considerably, being this reduction more pronounced in homogeneous and 2-layer soils. The proposed technique is an attractive tool since that considers the frequency dependence on each layer of soil, with a low computational cost and good accuracy from 100 Hz up to 1 MHz.University of Campinas-UNICAMPSão Paulo State University-UNESPSão Paulo State University-UNESPUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)de Araújo, Anderson R.J.de Azevedo, Walter L.M.Colqui, Jaimis S.L.Kurokawa, Sérgio [UNESP]Filho, José Pissolato2023-07-29T16:04:43Z2023-07-29T16:04:43Z2023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.prime.2022.100102e-Prime - Advances in Electrical Engineering, Electronics and Energy, v. 3.2772-6711http://hdl.handle.net/11449/24961910.1016/j.prime.2022.1001022-s2.0-85147136897Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPenge-Prime - Advances in Electrical Engineering, Electronics and Energyinfo:eu-repo/semantics/openAccess2024-07-04T19:06:13Zoai:repositorio.unesp.br:11449/249619Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:46:34.806520Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
title |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
spellingShingle |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach de Araújo, Anderson R.J. Electromagnetic transients Frequency-dependent soils parameters Grounding electrodes Stratified soils |
title_short |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
title_full |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
title_fullStr |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
title_full_unstemmed |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
title_sort |
Harmonic grounding impedance of rods in horizontally stratified soils using ABCD-matrix approach |
author |
de Araújo, Anderson R.J. |
author_facet |
de Araújo, Anderson R.J. de Azevedo, Walter L.M. Colqui, Jaimis S.L. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
author_role |
author |
author2 |
de Azevedo, Walter L.M. Colqui, Jaimis S.L. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
de Araújo, Anderson R.J. de Azevedo, Walter L.M. Colqui, Jaimis S.L. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
dc.subject.por.fl_str_mv |
Electromagnetic transients Frequency-dependent soils parameters Grounding electrodes Stratified soils |
topic |
Electromagnetic transients Frequency-dependent soils parameters Grounding electrodes Stratified soils |
description |
Grounding electrodes play a fundamental role in the operation of power systems. In this context, precise computation of grounding impedance must consider the frequency-dependence of the soil parameters and the ground organized in stratified layers of soil. This paper proposes an ABCD matrix approach to compute the harmonic grounding impedance of rods buried in frequency-dependent stratified soils directly in the frequency domain. This technique is based on the traditional ABCD matrix used for overhead multi-phase transmission lines extended to grounding systems. In this approach, each rod segment is modeled as a short transmission line where the equivalent harmonic grounding impedance is calculated. Then, the Ground Potential Rise (GPR) waveforms are computed by lightning currents injected into the rods buried in different scenarios. Results indicated that the ABCD matrix approach has shown a good agreement with those obtained using a full-wave electromagnetic software FEKO. The frequency-dependence of the soil electrical parameters causes a significant modification in the harmonic impedance of grounding rods which reduces the GPR peaks considerably, being this reduction more pronounced in homogeneous and 2-layer soils. The proposed technique is an attractive tool since that considers the frequency dependence on each layer of soil, with a low computational cost and good accuracy from 100 Hz up to 1 MHz. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T16:04:43Z 2023-07-29T16:04:43Z 2023-03-01 |
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/10.1016/j.prime.2022.100102 e-Prime - Advances in Electrical Engineering, Electronics and Energy, v. 3. 2772-6711 http://hdl.handle.net/11449/249619 10.1016/j.prime.2022.100102 2-s2.0-85147136897 |
url |
http://dx.doi.org/10.1016/j.prime.2022.100102 http://hdl.handle.net/11449/249619 |
identifier_str_mv |
e-Prime - Advances in Electrical Engineering, Electronics and Energy, v. 3. 2772-6711 10.1016/j.prime.2022.100102 2-s2.0-85147136897 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
e-Prime - Advances in Electrical Engineering, Electronics and Energy |
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_ |
1808128855993483264 |