Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/en14206534 http://hdl.handle.net/11449/233697 |
Resumo: | The Lumped Parameter Model (LPM) is a known approach to represent overhead transmission lines (TLs), especially when these elements comprehend a few tens of kilometers. LPMs employ a large number of cascaded π-circuits to compute accurately the transient responses. These responses contain numerical spurious oscillations (NSO) characterized by erroneous peaks which distort the transient responses, mainly their peak values. Two modified LPM topologies composed of damping resistances inserted along the longitudinal or transversal branches of the cascaded π-circuits offer significant mitigations in the NSO. In this paper, in an effort to have the maximum mitigation of the NSO and low distortion in the transient responses, two modified topologies with optimized damping resistances are proposed to represent short TLs. Results demonstrate expressive attenuation in the peaks of NSO which reflect good agreement in comparison with the responses computed by the Bergeron’s line model. The mitigation of the NSO is carried out directly in the time domain and it does not require either analog or digital filters.Furthermore, no frequency-to-time transformations are necessary in this procedure. These alternative topologies can be incorporated into any electromagnetic transient program to study switching operations in power systems. |
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Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission linesElectromagnetic transientsLumped parameter modelNumerical spurious oscillationsShort transmission linesThe Lumped Parameter Model (LPM) is a known approach to represent overhead transmission lines (TLs), especially when these elements comprehend a few tens of kilometers. LPMs employ a large number of cascaded π-circuits to compute accurately the transient responses. These responses contain numerical spurious oscillations (NSO) characterized by erroneous peaks which distort the transient responses, mainly their peak values. Two modified LPM topologies composed of damping resistances inserted along the longitudinal or transversal branches of the cascaded π-circuits offer significant mitigations in the NSO. In this paper, in an effort to have the maximum mitigation of the NSO and low distortion in the transient responses, two modified topologies with optimized damping resistances are proposed to represent short TLs. Results demonstrate expressive attenuation in the peaks of NSO which reflect good agreement in comparison with the responses computed by the Bergeron’s line model. The mitigation of the NSO is carried out directly in the time domain and it does not require either analog or digital filters.Furthermore, no frequency-to-time transformations are necessary in this procedure. These alternative topologies can be incorporated into any electromagnetic transient program to study switching operations in power systems.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Electrical and Computer Engineering State University of Campinas (UNICAMP)Department of Electrical Enegineering São Paulo State University (UNESP)Department of Electrical Enegineering São Paulo State University (UNESP)CAPES: 001FAPESP: 2019/01396-1FAPESP: 2021/06157-5Universidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)Colqui, Jaimis S. L.de Araújo, Anderson R. J.Kurokawa, Sérgio [UNESP]Filho, José Pissolato2022-05-01T09:47:19Z2022-05-01T09:47:19Z2021-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/en14206534Energies, v. 14, n. 20, 2021.1996-1073http://hdl.handle.net/11449/23369710.3390/en142065342-s2.0-85117282186Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnergiesinfo:eu-repo/semantics/openAccess2024-07-04T19:06:36Zoai:repositorio.unesp.br:11449/233697Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:01:04.591715Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
title |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
spellingShingle |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines Colqui, Jaimis S. L. Electromagnetic transients Lumped parameter model Numerical spurious oscillations Short transmission lines |
title_short |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
title_full |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
title_fullStr |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
title_full_unstemmed |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
title_sort |
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines |
author |
Colqui, Jaimis S. L. |
author_facet |
Colqui, Jaimis S. L. de Araújo, Anderson R. J. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
author_role |
author |
author2 |
de Araújo, Anderson R. J. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
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 |
Colqui, Jaimis S. L. de Araújo, Anderson R. J. Kurokawa, Sérgio [UNESP] Filho, José Pissolato |
dc.subject.por.fl_str_mv |
Electromagnetic transients Lumped parameter model Numerical spurious oscillations Short transmission lines |
topic |
Electromagnetic transients Lumped parameter model Numerical spurious oscillations Short transmission lines |
description |
The Lumped Parameter Model (LPM) is a known approach to represent overhead transmission lines (TLs), especially when these elements comprehend a few tens of kilometers. LPMs employ a large number of cascaded π-circuits to compute accurately the transient responses. These responses contain numerical spurious oscillations (NSO) characterized by erroneous peaks which distort the transient responses, mainly their peak values. Two modified LPM topologies composed of damping resistances inserted along the longitudinal or transversal branches of the cascaded π-circuits offer significant mitigations in the NSO. In this paper, in an effort to have the maximum mitigation of the NSO and low distortion in the transient responses, two modified topologies with optimized damping resistances are proposed to represent short TLs. Results demonstrate expressive attenuation in the peaks of NSO which reflect good agreement in comparison with the responses computed by the Bergeron’s line model. The mitigation of the NSO is carried out directly in the time domain and it does not require either analog or digital filters.Furthermore, no frequency-to-time transformations are necessary in this procedure. These alternative topologies can be incorporated into any electromagnetic transient program to study switching operations in power systems. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-01 2022-05-01T09:47:19Z 2022-05-01T09:47:19Z |
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/en14206534 Energies, v. 14, n. 20, 2021. 1996-1073 http://hdl.handle.net/11449/233697 10.3390/en14206534 2-s2.0-85117282186 |
url |
http://dx.doi.org/10.3390/en14206534 http://hdl.handle.net/11449/233697 |
identifier_str_mv |
Energies, v. 14, n. 20, 2021. 1996-1073 10.3390/en14206534 2-s2.0-85117282186 |
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_ |
1808129275408154624 |