Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/15955 |
Resumo: | This thesis presents the development of a methodology for the detection and classification of electrical transients in power transformers, for protection purposes. For this, we analyzed several electrical transients involving the power transformers, in order to distinguish the different types of internal faults of the inrush current. The methodology was validated through a test system implemented in the ATP/EMTP software. From this, simulation data were acquired considering several operating conditions of the power transformer. The developed methodology monitors and analyzes the Detail Coefficients (CD) for different levels of decomposition by the Discrete Wavelet Transform of the differential current. The method extracts the characteristics and calculates the variation of the CD levels for the classification of transients. The results showed that during the internal fault conditions the CD presents high and constant peak values, different from what happens in other transients. The methodology proposed in this work is able to identify and correctly discriminate the internal fault conditions of other transients. This property makes the proposed method promising for power transformer protection purposes. |
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3913 |
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2019-03-25T15:08:51Z2019-03-25T15:08:51Z2018-08-28http://repositorio.ufsm.br/handle/1/15955This thesis presents the development of a methodology for the detection and classification of electrical transients in power transformers, for protection purposes. For this, we analyzed several electrical transients involving the power transformers, in order to distinguish the different types of internal faults of the inrush current. The methodology was validated through a test system implemented in the ATP/EMTP software. From this, simulation data were acquired considering several operating conditions of the power transformer. The developed methodology monitors and analyzes the Detail Coefficients (CD) for different levels of decomposition by the Discrete Wavelet Transform of the differential current. The method extracts the characteristics and calculates the variation of the CD levels for the classification of transients. The results showed that during the internal fault conditions the CD presents high and constant peak values, different from what happens in other transients. The methodology proposed in this work is able to identify and correctly discriminate the internal fault conditions of other transients. This property makes the proposed method promising for power transformer protection purposes.Este trabalho de tese apresenta o desenvolvimento de uma metodologia para detecção e classificação de transitórios elétricos em transformadores de potência, para fins de proteção. Para isso foram analisados diversos transitórios elétricos envolvendo os transformadores de potência no sentido de distinguir os diferentes tipos de faltas internas da corrente de magnetização (inrush). A metodologia foi validada por meio de um sistema teste implementado no software EMTP/ATP.A partir disso foram adquiridos dados de simulação considerando diversas condições operacionais do transformador de potência. A metodologia desenvolvida monitora e analisa os Coeficientes de Detalhes (CD) para diferentes níveis de decomposição pela Transformada Wavelet Discreta da corrente diferencial. O método extrai as características e calcula a variação dos níveis dos CD para a classificação dos transitórios. Os resultados mostraram que, durante as condições de faltas internas, os CD apresentam valores de pico elevados e constantes, diferente do que acontece em outros transitórios. A metodologia proposta neste trabalho é capaz de identificar e discriminar corretamente as condições de falta interna de outros transitórios. Essa propriedade torna o método proposto promissor para fins de proteção de transformadores de potência.porUniversidade 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/openAccessProteção de transformadores de potênciaProteção diferencialCorrentes de InrushFalta internaTransformada wavelet discretaPower transformer protectionDifferential protectionInrush currentsInternal faultDiscrete wavelet transformCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAMetodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet DiscretaMethodology for detection and classification of fault in power transformers by Discrete Wavelet Transforminfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisCardoso Junior, Ghendyhttp://lattes.cnpq.br/6284386218725402Moreira, Fernando Augustohttp://lattes.cnpq.br/8068628216980918Marchesan, Gustavohttp://lattes.cnpq.br/4254867243649147Gutierres, Luiz Fernando de Freitashttp://lattes.cnpq.br/8846358506427099Morais, Adriano Peres dehttp://lattes.cnpq.br/2780595038162903http://lattes.cnpq.br/1272996266255143Marques, Jeferson Prates300400000007600eed4f55e-1a74-47ce-afc0-4daa8655d8a34219026f-eb12-410d-82ce-037425ef59427d29e229-151f-4a90-9446-7f54c3a0870d0697ee91-b245-4b63-bad9-fd26200fe829a09e2e6e-c6d5-4d19-ba28-46f434cb03923198e867-efd3-440f-8526-46ff3acac054reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEE_2018_MARQUES_JEFERSON.pdfTES_PPGEE_2018_MARQUES_JEFERSON.pdfTese de Doutoradoapplication/pdf2166033http://repositorio.ufsm.br/bitstream/1/15955/1/TES_PPGEE_2018_MARQUES_JEFERSON.pdf7e7b9f1fe89deba2a0d207ffa99f46bbMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
dc.title.alternative.eng.fl_str_mv |
Methodology for detection and classification of fault in power transformers by Discrete Wavelet Transform |
title |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
spellingShingle |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta Marques, Jeferson Prates Proteção de transformadores de potência Proteção diferencial Correntes de Inrush Falta interna Transformada wavelet discreta Power transformer protection Differential protection Inrush currents Internal fault Discrete wavelet transform CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
title_short |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
title_full |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
title_fullStr |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
title_full_unstemmed |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
title_sort |
Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta |
author |
Marques, Jeferson Prates |
author_facet |
Marques, Jeferson Prates |
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 |
Moreira, Fernando Augusto |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/8068628216980918 |
dc.contributor.referee2.fl_str_mv |
Marchesan, Gustavo |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4254867243649147 |
dc.contributor.referee3.fl_str_mv |
Gutierres, Luiz Fernando de Freitas |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/8846358506427099 |
dc.contributor.referee4.fl_str_mv |
Morais, Adriano Peres de |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/2780595038162903 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1272996266255143 |
dc.contributor.author.fl_str_mv |
Marques, Jeferson Prates |
contributor_str_mv |
Cardoso Junior, Ghendy Moreira, Fernando Augusto Marchesan, Gustavo Gutierres, Luiz Fernando de Freitas Morais, Adriano Peres de |
dc.subject.por.fl_str_mv |
Proteção de transformadores de potência Proteção diferencial Correntes de Inrush Falta interna Transformada wavelet discreta |
topic |
Proteção de transformadores de potência Proteção diferencial Correntes de Inrush Falta interna Transformada wavelet discreta Power transformer protection Differential protection Inrush currents Internal fault Discrete wavelet transform CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
dc.subject.eng.fl_str_mv |
Power transformer protection Differential protection Inrush currents Internal fault Discrete wavelet transform |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
description |
This thesis presents the development of a methodology for the detection and classification of electrical transients in power transformers, for protection purposes. For this, we analyzed several electrical transients involving the power transformers, in order to distinguish the different types of internal faults of the inrush current. The methodology was validated through a test system implemented in the ATP/EMTP software. From this, simulation data were acquired considering several operating conditions of the power transformer. The developed methodology monitors and analyzes the Detail Coefficients (CD) for different levels of decomposition by the Discrete Wavelet Transform of the differential current. The method extracts the characteristics and calculates the variation of the CD levels for the classification of transients. The results showed that during the internal fault conditions the CD presents high and constant peak values, different from what happens in other transients. The methodology proposed in this work is able to identify and correctly discriminate the internal fault conditions of other transients. This property makes the proposed method promising for power transformer protection purposes. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018-08-28 |
dc.date.accessioned.fl_str_mv |
2019-03-25T15:08:51Z |
dc.date.available.fl_str_mv |
2019-03-25T15:08:51Z |
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/1/15955 |
url |
http://repositorio.ufsm.br/handle/1/15955 |
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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Universidade Federal de Santa Maria (UFSM) |
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UFSM |
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UFSM |
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