Método para detecção de oscilação de potência no domínio do tempo
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional Manancial UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/15103 |
Resumo: | This work proposes two techniques for the detection of power swings and blocking of distance relays on transmission lines to prevent undue shutdowns. If a fault occurs during power swing, it must be immediately detected and removed. One of the major challenges for the detectors is to distinguish power swing from symmetrical fault near to electrical center (power angle δ near to 180º, since both are balanced phenomena. First technique is inspired by the fact that the frequency with which the signal of active power oscillates is proportional to the swing frequency of power system. Thus, the swing frequency of the active power derivate (dP/dt); the estimated frequency behavior is monitored by the slope angle between samples with the objective of detecting power swing (soft tendency – low angle values) from others events (abrupt tendency – high angle values). This technique was designed to be easy to ajust without extensive studies or evaluations of all possible scenarios in order to get the best setting. A second technique that uses of the asymmetry of the waveform in the stage of detection of short-circuit during power swing is proposed, and its main advantage is the ability to identify three-phase faults during power swing near the electrical center up to δ ≤ 120º. This technique calculates the mean square erros comparing the input signal with periodic functions with the objective of detecting power swing, this technique has predefined settings facilitating the adjustment process. The results show that the approaches provide satisfactory performance for stable power swing, unstable power swing and short-circuit during power swing. The highlights of proposed techniques are the simplicity of mathematical operations used, besides the speed in its operations. |
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2018-12-14T10:11:04Z2018-12-14T10:11:04Z2018-03-09http://repositorio.ufsm.br/handle/1/15103This work proposes two techniques for the detection of power swings and blocking of distance relays on transmission lines to prevent undue shutdowns. If a fault occurs during power swing, it must be immediately detected and removed. One of the major challenges for the detectors is to distinguish power swing from symmetrical fault near to electrical center (power angle δ near to 180º, since both are balanced phenomena. First technique is inspired by the fact that the frequency with which the signal of active power oscillates is proportional to the swing frequency of power system. Thus, the swing frequency of the active power derivate (dP/dt); the estimated frequency behavior is monitored by the slope angle between samples with the objective of detecting power swing (soft tendency – low angle values) from others events (abrupt tendency – high angle values). This technique was designed to be easy to ajust without extensive studies or evaluations of all possible scenarios in order to get the best setting. A second technique that uses of the asymmetry of the waveform in the stage of detection of short-circuit during power swing is proposed, and its main advantage is the ability to identify three-phase faults during power swing near the electrical center up to δ ≤ 120º. This technique calculates the mean square erros comparing the input signal with periodic functions with the objective of detecting power swing, this technique has predefined settings facilitating the adjustment process. The results show that the approaches provide satisfactory performance for stable power swing, unstable power swing and short-circuit during power swing. The highlights of proposed techniques are the simplicity of mathematical operations used, besides the speed in its operations.Este trabalho propõe duas técnicas para a detecção de oscilações de potência e bloqueio dos relés de distância em linhas de transmissão, prevenindo desligamentos indevidos. Caso uma falta ocorra durante uma oscilação de potência, a mesma deve ser imediatamente detectada e removida. Um dos maiores desafios para os detectores é distinguir oscilação de potência de falta simétrica perto do centro elétrico, isto é, com ângulo de potência δ próximo a 180o, já que ambos são fenômenos balanceados. A primeira técnica é inspirada no fato de que a frequência com que o sinal da potência ativa oscila é proporcional à frequência de oscilação do sistema elétrico. Assim, estima-se a frequência de oscilação sobre a derivada da potência ativa (dP/dt); o comportamento da frequência estimada é monitorado através do ângulo de inclinação entre amostras de modo a discriminar oscilação de potência (tendência suave - valores de ângulos baixos) de outros eventos (tendência abrupta - valores de ângulos altos). Esta técnica foi projetada para ser de fácil ajuste, evitando extensos estudos e avaliações de todos os cenários possíveis de modo a obter o melhor ajuste. Uma segunda técnica que faz uso da assimetria da forma de onda na etapa de detecção de curto-circuito durante oscilação de potência é proposta, e possui como principal vantagem, a habilidade de identificar faltas trifásicas durante oscilação perto do centro elétrico até δ ≤ 120o. Está técnica calcula os erros quadráticos médios comparando o sinal de entrada com funções periódicas de modo a detectar oscilação de potência, a mesma possui ajustes predefinidos facilitando o processo de ajuste. Os resultados mostram que as abordagens fornecem desempenhos satisfatórios para oscilações estáveis, instáveis e curto-circuito durante oscilação. Destaca-se a simplicidade das operações matemáticas utilizadas, além da velocidade nas suas operações.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de TecnologiaPrograma de Pós-Graduação em Engenharia ElétricaUFSMBrasilEngenharia ElétricaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessBloqueio contra oscilação de potênciaDetecção de falta durante oscilação de potênciaProteção de linhas de transmissãoRelé de distânciaPower swing blockingFault detection during power swingTransmission lines protectionDistance relayCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAMétodo para detecção de oscilação de potência no domínio do tempoMethod for power swing detection on the domain of timeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisCardoso Junior, Ghendyhttp://lattes.cnpq.br/6284386218725402Oliveira, Aécio de Limahttp://lattes.cnpq.br/3513022402512752Ferreira, Gustavo Dorneleshttp://lattes.cnpq.br/8850629993493212Marchesan, Gustavohttp://lattes.cnpq.br/4254867243649147Moreto, Miguelhttp://lattes.cnpq.br/4853832668516720http://lattes.cnpq.br/9909150473025040Menco, Carlos Andres Lazaro300400000007600eed4f55e-1a74-47ce-afc0-4daa8655d8a3c00e9af9-a217-440c-a039-a88a7a25bc18b325897b-e199-425a-9d1d-34f3c1e4e8c1a49a5383-e58d-4560-9ad8-8916d02027bacdeb5e1d-7096-418c-adb0-a0d2878cd476d5cf367f-7047-429f-a9e4-b605b4facadcreponame:Repositório Institucional Manancial UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEE_2018_MENCO_CARLOS.pdfTES_PPGEE_2018_MENCO_CARLOS.pdfTese de Doutoradoapplication/pdf2943204http://repositorio.ufsm.br/bitstream/1/15103/1/TES_PPGEE_2018_MENCO_CARLOS.pdfddb5be687536605100669ba9911d1927MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Método para detecção de oscilação de potência no domínio do tempo |
dc.title.alternative.eng.fl_str_mv |
Method for power swing detection on the domain of time |
title |
Método para detecção de oscilação de potência no domínio do tempo |
spellingShingle |
Método para detecção de oscilação de potência no domínio do tempo Menco, Carlos Andres Lazaro Bloqueio contra oscilação de potência Detecção de falta durante oscilação de potência Proteção de linhas de transmissão Relé de distância Power swing blocking Fault detection during power swing Transmission lines protection Distance relay CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
title_short |
Método para detecção de oscilação de potência no domínio do tempo |
title_full |
Método para detecção de oscilação de potência no domínio do tempo |
title_fullStr |
Método para detecção de oscilação de potência no domínio do tempo |
title_full_unstemmed |
Método para detecção de oscilação de potência no domínio do tempo |
title_sort |
Método para detecção de oscilação de potência no domínio do tempo |
author |
Menco, Carlos Andres Lazaro |
author_facet |
Menco, Carlos Andres Lazaro |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Cardoso Junior, Ghendy |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/6284386218725402 |
dc.contributor.referee1.fl_str_mv |
Oliveira, Aécio de Lima |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/3513022402512752 |
dc.contributor.referee2.fl_str_mv |
Ferreira, Gustavo Dorneles |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/8850629993493212 |
dc.contributor.referee3.fl_str_mv |
Marchesan, Gustavo |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/4254867243649147 |
dc.contributor.referee4.fl_str_mv |
Moreto, Miguel |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/4853832668516720 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9909150473025040 |
dc.contributor.author.fl_str_mv |
Menco, Carlos Andres Lazaro |
contributor_str_mv |
Cardoso Junior, Ghendy Oliveira, Aécio de Lima Ferreira, Gustavo Dorneles Marchesan, Gustavo Moreto, Miguel |
dc.subject.por.fl_str_mv |
Bloqueio contra oscilação de potência Detecção de falta durante oscilação de potência Proteção de linhas de transmissão Relé de distância |
topic |
Bloqueio contra oscilação de potência Detecção de falta durante oscilação de potência Proteção de linhas de transmissão Relé de distância Power swing blocking Fault detection during power swing Transmission lines protection Distance relay CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
dc.subject.eng.fl_str_mv |
Power swing blocking Fault detection during power swing Transmission lines protection Distance relay |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
description |
This work proposes two techniques for the detection of power swings and blocking of distance relays on transmission lines to prevent undue shutdowns. If a fault occurs during power swing, it must be immediately detected and removed. One of the major challenges for the detectors is to distinguish power swing from symmetrical fault near to electrical center (power angle δ near to 180º, since both are balanced phenomena. First technique is inspired by the fact that the frequency with which the signal of active power oscillates is proportional to the swing frequency of power system. Thus, the swing frequency of the active power derivate (dP/dt); the estimated frequency behavior is monitored by the slope angle between samples with the objective of detecting power swing (soft tendency – low angle values) from others events (abrupt tendency – high angle values). This technique was designed to be easy to ajust without extensive studies or evaluations of all possible scenarios in order to get the best setting. A second technique that uses of the asymmetry of the waveform in the stage of detection of short-circuit during power swing is proposed, and its main advantage is the ability to identify three-phase faults during power swing near the electrical center up to δ ≤ 120º. This technique calculates the mean square erros comparing the input signal with periodic functions with the objective of detecting power swing, this technique has predefined settings facilitating the adjustment process. The results show that the approaches provide satisfactory performance for stable power swing, unstable power swing and short-circuit during power swing. The highlights of proposed techniques are the simplicity of mathematical operations used, besides the speed in its operations. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-12-14T10:11:04Z |
dc.date.available.fl_str_mv |
2018-12-14T10:11:04Z |
dc.date.issued.fl_str_mv |
2018-03-09 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/15103 |
url |
http://repositorio.ufsm.br/handle/1/15103 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
300400000007 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Elétrica |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Engenharia Elétrica |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
dc.source.none.fl_str_mv |
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