A topological approach to the identification of critical measurements in power-system state estimation
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Data de Publicação: | 2005 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/27578 |
Resumo: | This paper presents a new topological methodology for critical measurements identification in observable networks. A measurement is said to be critical, in an observability sense, if its removal from the measurement set makes the associated system lose observability. The proposed methodology is based on the properties of both, observable measurement subnetworks (OMS) and redundant branch sets (RBS), for the first time proposed. To reduce the combinatorial bluster, the proposed method divides the measurements into two groups and classifies them into two phases. It allows identifying the critical measurements without any numerical calculation. Indeed, it is simple and fast. To clarify the proposed method and to demonstrate its simplicity, two examples are provided. The proposed method is successfully tested in the IEEE-14 bus system as well as in two realistic systems of Brazilian utilities. The first is a 121-bus system by ELETROSUL, and the other is a 383-bus system by Companhia Hidroelétrica do São Francisco (CHESF). |
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Bretas, Newton GeraldoLondon Júnior, João Bosco AugustoAlberto, Luís Fernando CostaBretas, Arturo Suman2011-01-28T05:59:09Z20051057-7122http://hdl.handle.net/10183/27578000520390This paper presents a new topological methodology for critical measurements identification in observable networks. A measurement is said to be critical, in an observability sense, if its removal from the measurement set makes the associated system lose observability. The proposed methodology is based on the properties of both, observable measurement subnetworks (OMS) and redundant branch sets (RBS), for the first time proposed. To reduce the combinatorial bluster, the proposed method divides the measurements into two groups and classifies them into two phases. It allows identifying the critical measurements without any numerical calculation. Indeed, it is simple and fast. To clarify the proposed method and to demonstrate its simplicity, two examples are provided. The proposed method is successfully tested in the IEEE-14 bus system as well as in two realistic systems of Brazilian utilities. The first is a 121-bus system by ELETROSUL, and the other is a 383-bus system by Companhia Hidroelétrica do São Francisco (CHESF).application/pdfengIEEE transactions on circuits and systems.I, Regular papers. New York, N.Y. Vol. 52, no. 1 (Jan. 2005), p. 139-147Sistema elétrico de potênciaCritical measurementsGraph theoryNetwork observabilityState estimationA topological approach to the identification of critical measurements in power-system state estimationEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000520390.pdf000520390.pdfTexto completo (inglês)application/pdf368124http://www.lume.ufrgs.br/bitstream/10183/27578/1/000520390.pdf5f0d8fbec5efbefcba86722dc571cc3dMD51TEXT000520390.pdf.txt000520390.pdf.txtExtracted Texttext/plain39013http://www.lume.ufrgs.br/bitstream/10183/27578/2/000520390.pdf.txtfc8ad8ff69b720d1a7b039d2aab46ea6MD52THUMBNAIL000520390.pdf.jpg000520390.pdf.jpgGenerated Thumbnailimage/jpeg2221http://www.lume.ufrgs.br/bitstream/10183/27578/3/000520390.pdf.jpg9b6bf8c1894b1964a73af01917183caeMD5310183/275782021-06-13 04:36:43.968806oai:www.lume.ufrgs.br:10183/27578Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-06-13T07:36:43Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
A topological approach to the identification of critical measurements in power-system state estimation |
title |
A topological approach to the identification of critical measurements in power-system state estimation |
spellingShingle |
A topological approach to the identification of critical measurements in power-system state estimation Bretas, Newton Geraldo Sistema elétrico de potência Critical measurements Graph theory Network observability State estimation |
title_short |
A topological approach to the identification of critical measurements in power-system state estimation |
title_full |
A topological approach to the identification of critical measurements in power-system state estimation |
title_fullStr |
A topological approach to the identification of critical measurements in power-system state estimation |
title_full_unstemmed |
A topological approach to the identification of critical measurements in power-system state estimation |
title_sort |
A topological approach to the identification of critical measurements in power-system state estimation |
author |
Bretas, Newton Geraldo |
author_facet |
Bretas, Newton Geraldo London Júnior, João Bosco Augusto Alberto, Luís Fernando Costa Bretas, Arturo Suman |
author_role |
author |
author2 |
London Júnior, João Bosco Augusto Alberto, Luís Fernando Costa Bretas, Arturo Suman |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bretas, Newton Geraldo London Júnior, João Bosco Augusto Alberto, Luís Fernando Costa Bretas, Arturo Suman |
dc.subject.por.fl_str_mv |
Sistema elétrico de potência |
topic |
Sistema elétrico de potência Critical measurements Graph theory Network observability State estimation |
dc.subject.eng.fl_str_mv |
Critical measurements Graph theory Network observability State estimation |
description |
This paper presents a new topological methodology for critical measurements identification in observable networks. A measurement is said to be critical, in an observability sense, if its removal from the measurement set makes the associated system lose observability. The proposed methodology is based on the properties of both, observable measurement subnetworks (OMS) and redundant branch sets (RBS), for the first time proposed. To reduce the combinatorial bluster, the proposed method divides the measurements into two groups and classifies them into two phases. It allows identifying the critical measurements without any numerical calculation. Indeed, it is simple and fast. To clarify the proposed method and to demonstrate its simplicity, two examples are provided. The proposed method is successfully tested in the IEEE-14 bus system as well as in two realistic systems of Brazilian utilities. The first is a 121-bus system by ELETROSUL, and the other is a 383-bus system by Companhia Hidroelétrica do São Francisco (CHESF). |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2011-01-28T05:59:09Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/27578 |
dc.identifier.issn.pt_BR.fl_str_mv |
1057-7122 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000520390 |
identifier_str_mv |
1057-7122 000520390 |
url |
http://hdl.handle.net/10183/27578 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
IEEE transactions on circuits and systems.I, Regular papers. New York, N.Y. Vol. 52, no. 1 (Jan. 2005), p. 139-147 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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