Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/27620 |
Resumo: | This Doctoral Thesis makes a detailed study and development of topologies of dc-dc converters with high voltage gain for photovoltaic microinverters. This requirement is because of low voltage of photovoltaic module, which has to be suitable for the high voltage of inverter dc bus. Due to low power of this system, the isolated SEPIC is chosen as standard topology for synthesis of others converters, because it uses a single semiconductor switch, besides providing galvanic isolation among photovoltaic module and electrical grid. To solve some problems of this converter, besides providing a higher static gain, some cells are added to converter and analyzed. The topologies obtained and defined as most promising and more relevant are selected to be analyzed with more detailing. The proposed converters are deeply analyzed as to its operation and equation for operation analysis and definition of voltage and current stress. All the analyzed converters show a characteristic of resonant operation, which brings the advantage of soft switching, reducing the switching losses. Besides that, they are capable to solve some problems of isolated SEPIC, such as the replacement of coupled inductor by the transformer, besides mitigating voltage spikes on secondary side, and decreasing voltage stress over some components. Lastly, and not less important, the static gain is significatively increased, without the excessive addition of components. To validate all the concepts, assumptions and equations performed, experimental results are presented. These results aim to verify the compatibility among converters waveforms, besides issues of soft switching, listing some advantages and disadvantages of each converter, also presenting the efficiency curves and the loss estimation for each converter. In this way, this work aims to contribute making a detailed study and developing converters to be used on a photovoltaic microinverter. To affirm this propose, experimental results are obtained and presented, in order to make a theoreticalexperimental comparison among topologies of converters, aiming to improve the quality and trustworthiness of this work. |
id |
UFSM_215c3c9da1f34436421407005dae2f5d |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/27620 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2023-01-18T15:12:41Z2023-01-18T15:12:41Z2022-12-15http://repositorio.ufsm.br/handle/1/27620This Doctoral Thesis makes a detailed study and development of topologies of dc-dc converters with high voltage gain for photovoltaic microinverters. This requirement is because of low voltage of photovoltaic module, which has to be suitable for the high voltage of inverter dc bus. Due to low power of this system, the isolated SEPIC is chosen as standard topology for synthesis of others converters, because it uses a single semiconductor switch, besides providing galvanic isolation among photovoltaic module and electrical grid. To solve some problems of this converter, besides providing a higher static gain, some cells are added to converter and analyzed. The topologies obtained and defined as most promising and more relevant are selected to be analyzed with more detailing. The proposed converters are deeply analyzed as to its operation and equation for operation analysis and definition of voltage and current stress. All the analyzed converters show a characteristic of resonant operation, which brings the advantage of soft switching, reducing the switching losses. Besides that, they are capable to solve some problems of isolated SEPIC, such as the replacement of coupled inductor by the transformer, besides mitigating voltage spikes on secondary side, and decreasing voltage stress over some components. Lastly, and not less important, the static gain is significatively increased, without the excessive addition of components. To validate all the concepts, assumptions and equations performed, experimental results are presented. These results aim to verify the compatibility among converters waveforms, besides issues of soft switching, listing some advantages and disadvantages of each converter, also presenting the efficiency curves and the loss estimation for each converter. In this way, this work aims to contribute making a detailed study and developing converters to be used on a photovoltaic microinverter. To affirm this propose, experimental results are obtained and presented, in order to make a theoreticalexperimental comparison among topologies of converters, aiming to improve the quality and trustworthiness of this work.Esta Tese de Doutorado faz um estudo e desenvolvimento de topologias de conversores CCCC com elevado ganho de tensão para a aplicação de microinversores fotovoltaicos. Nestas aplicações, é necessário que a baixa tensão de um módulo fotovoltaico seja adequada para a alta tensão de entrada do inversor. Devido à baixa potência do sistema, o SEPIC isolado foi adotado como topologia base para a síntese de outros conversores, pois utiliza apenas uma chave semicondutora, além de garantir a isolação galvânica entre o módulo fotovoltaico e a rede elétrica. Para solucionar alguns problemas existentes desta topologia e também proporcionar um maior ganho estático, diversas células são inseridas ao conversor e analisadas. As topologias obtidas e julgadas como mais promissoras e de maior relevância são selecionadas para serem abordadas com maior detalhamento. Os conversores propostos são analisados com aprofundamento quanto ao seu funcionamento e ao equacionamento para análise de operação e definição dos esforços de tensão e corrente. Todos os conversores analisados apresentam a característica de possuírem etapas ressonantes em seu funcionamento, o que traz a vantagem de se ter comutações suaves, reduzindo as perdas de comutação. Além disso, são capazes de solucionar problemas existentes do SEPIC isolado, tais quais a substituição do indutor acoplado por um transformador, além da mitigação de spikes no secundário, reduzindo também os esforços de tensão sobre alguns elementos. Por fim, e não menos importante, o ganho estático é significativamente elevado, sem o acréscimo excessivo de componentes. Para validar todos os conceitos, suposições e equacionamentos realizados, os resultados experimentais são apresentados. Estes resultados visam verificar a compatibilidade entre as formas de onda, além de questões acerca das comutações suaves, elencando vantagens e desvantagens de cada topologia, mostrando também as curvas de rendimento e a estimativa de perdas de forma individual para cada conversor. Neste sentido, este trabalho visa contribuir fazendo o estudo detalhado e o desenvolvimento de conversores para serem utilizados em um microinversor fotovoltaico. Para todos os conversores, os resultados apresentados foram obtidos para uma frequência de comutação de 50 kHz, com tensão de entrada de 37,4 V e tensão de saída de 400 V, com todos apresentando rendimentos acima de 96% para a maior parte da faixa de potência de saída testada.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/openAccessCélula elevadora de tensãoConversor CC-CCFotovoltaicoRessonanteSEPIC isoladoDC-DC converterIsolated SEPICPhotovoltaicResonantStep-up voltage cellCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAEstudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isoladoStudy and development of dc-dc converters with high voltage gain based on isolated SEPIC topologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisSchuch, Lucianohttp://lattes.cnpq.br/6395346342569490Roggia, LeandroAndrade, António Manuel Santos SpencerRussi, Jumar LuísDupont, Fabrício HoffGabbi, Thieli Smidthttp://lattes.cnpq.br/0357064700461085Andres, Bernardo300400000007600600600600600600c67316ac-85b7-465b-9a17-c8aee3a1c9ee1ddbef4f-883f-4bb7-a1bc-95506aa7cd7aa5a8cd50-ffc9-4130-a45c-9ed4be29cd398b5efc55-7d8b-473f-a56f-66d57b0a4c4e85af4721-6868-481d-816b-3bd209108cdc48e71a94-1fdf-41e9-ae60-dc6fce7ee1ee26049793-68bd-48fa-83b1-6de9994d1387reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEE_2022_ANDRES_BERNARDO.pdfTES_PPGEE_2022_ANDRES_BERNARDO.pdfTeseapplication/pdf35130195http://repositorio.ufsm.br/bitstream/1/27620/1/TES_PPGEE_2022_ANDRES_BERNARDO.pdffc7aecbd78aa7ff3a2a1cbaaeef5318cMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/27620/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81956http://repositorio.ufsm.br/bitstream/1/27620/3/license.txt2f0571ecee68693bd5cd3f17c1e075dfMD531/276202023-01-18 12:12:41.762oai:repositorio.ufsm.br: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 Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-01-18T15:12:41Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
dc.title.alternative.eng.fl_str_mv |
Study and development of dc-dc converters with high voltage gain based on isolated SEPIC topology |
title |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
spellingShingle |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado Andres, Bernardo Célula elevadora de tensão Conversor CC-CC Fotovoltaico Ressonante SEPIC isolado DC-DC converter Isolated SEPIC Photovoltaic Resonant Step-up voltage cell CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
title_short |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
title_full |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
title_fullStr |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
title_full_unstemmed |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
title_sort |
Estudo e desenvolvimento de conversores cc-cc com elevado ganho de tensão baseados na topologia do SEPIC isolado |
author |
Andres, Bernardo |
author_facet |
Andres, Bernardo |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Schuch, Luciano |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/6395346342569490 |
dc.contributor.advisor-co1.fl_str_mv |
Roggia, Leandro |
dc.contributor.referee1.fl_str_mv |
Andrade, António Manuel Santos Spencer |
dc.contributor.referee2.fl_str_mv |
Russi, Jumar Luís |
dc.contributor.referee3.fl_str_mv |
Dupont, Fabrício Hoff |
dc.contributor.referee4.fl_str_mv |
Gabbi, Thieli Smidt |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0357064700461085 |
dc.contributor.author.fl_str_mv |
Andres, Bernardo |
contributor_str_mv |
Schuch, Luciano Roggia, Leandro Andrade, António Manuel Santos Spencer Russi, Jumar Luís Dupont, Fabrício Hoff Gabbi, Thieli Smidt |
dc.subject.por.fl_str_mv |
Célula elevadora de tensão Conversor CC-CC Fotovoltaico Ressonante SEPIC isolado |
topic |
Célula elevadora de tensão Conversor CC-CC Fotovoltaico Ressonante SEPIC isolado DC-DC converter Isolated SEPIC Photovoltaic Resonant Step-up voltage cell CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
dc.subject.eng.fl_str_mv |
DC-DC converter Isolated SEPIC Photovoltaic Resonant Step-up voltage cell |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
description |
This Doctoral Thesis makes a detailed study and development of topologies of dc-dc converters with high voltage gain for photovoltaic microinverters. This requirement is because of low voltage of photovoltaic module, which has to be suitable for the high voltage of inverter dc bus. Due to low power of this system, the isolated SEPIC is chosen as standard topology for synthesis of others converters, because it uses a single semiconductor switch, besides providing galvanic isolation among photovoltaic module and electrical grid. To solve some problems of this converter, besides providing a higher static gain, some cells are added to converter and analyzed. The topologies obtained and defined as most promising and more relevant are selected to be analyzed with more detailing. The proposed converters are deeply analyzed as to its operation and equation for operation analysis and definition of voltage and current stress. All the analyzed converters show a characteristic of resonant operation, which brings the advantage of soft switching, reducing the switching losses. Besides that, they are capable to solve some problems of isolated SEPIC, such as the replacement of coupled inductor by the transformer, besides mitigating voltage spikes on secondary side, and decreasing voltage stress over some components. Lastly, and not less important, the static gain is significatively increased, without the excessive addition of components. To validate all the concepts, assumptions and equations performed, experimental results are presented. These results aim to verify the compatibility among converters waveforms, besides issues of soft switching, listing some advantages and disadvantages of each converter, also presenting the efficiency curves and the loss estimation for each converter. In this way, this work aims to contribute making a detailed study and developing converters to be used on a photovoltaic microinverter. To affirm this propose, experimental results are obtained and presented, in order to make a theoreticalexperimental comparison among topologies of converters, aiming to improve the quality and trustworthiness of this work. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022-12-15 |
dc.date.accessioned.fl_str_mv |
2023-01-18T15:12:41Z |
dc.date.available.fl_str_mv |
2023-01-18T15:12:41Z |
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/1/27620 |
url |
http://repositorio.ufsm.br/handle/1/27620 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
300400000007 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 600 |
dc.relation.authority.fl_str_mv |
c67316ac-85b7-465b-9a17-c8aee3a1c9ee 1ddbef4f-883f-4bb7-a1bc-95506aa7cd7a a5a8cd50-ffc9-4130-a45c-9ed4be29cd39 8b5efc55-7d8b-473f-a56f-66d57b0a4c4e 85af4721-6868-481d-816b-3bd209108cdc 48e71a94-1fdf-41e9-ae60-dc6fce7ee1ee 26049793-68bd-48fa-83b1-6de9994d1387 |
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 |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/27620/1/TES_PPGEE_2022_ANDRES_BERNARDO.pdf http://repositorio.ufsm.br/bitstream/1/27620/2/license_rdf http://repositorio.ufsm.br/bitstream/1/27620/3/license.txt |
bitstream.checksum.fl_str_mv |
fc7aecbd78aa7ff3a2a1cbaaeef5318c 4460e5956bc1d1639be9ae6146a50347 2f0571ecee68693bd5cd3f17c1e075df |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1791086231177658368 |