Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos
Ano de defesa: | 2017 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Tecnologia |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Elétrica
|
Departamento: |
Engenharia Elétrica
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/14662 |
Resumo: | This Doctoral Thesis presents a detailed study about stray capacitances in electromagnetic systems, with a special focus on inductors and transformer windings. The main objective of research is the development of a method for evaluating stray capacitances in multiconductor systems, more exactly self-capacitances and parasitic capacitors between turns. The proposed technique is based on the use of standard cells to be applied in a matching routine of turn, layer or macrolevel arrangements along the length of a coil. A standard cell is defined as a minimal and basic turn, layer or macrolevel arrangement that represents the main patterns of electrostatic energy stored on a multiconductor system. Therefore, standard cells enable the adequate calculation of the capacitive relations established in a multiconductor system, substantiated by the concept of an equivalent capacitive coupling matrix. The standard cell embraces mathematical rules for determining stray capacitances. These expressions are derived by means of a curve fitting approach through a set of Finite Element Analysis (FEA) simulations under the FEMM 4.2 (Finite Element Method Magnetics 4.2) environment and complementary computations on Mathematica 11.1.1.0. As a first step of this research process, a contextualization regarding the representation and estimation of parasitic capacitances is provided, together with an overview of analytical techniques currently available in the scientific literature and FEA simulations. As a second step, four inductor prototypes and their SPICE and EMTP-ATP (ElectroMagnetic Transients Program – Alternative Transients Program) implementations are verified. The equivalent circuits of the prototypes and the proposed technique are validated by comparing frequencyand time-domain (step transient response) characteristics, as well as the equivalent series impedance obtained from simulations and laboratory measurements. The proposed technique corroborates with other researches about medium- and high-frequency modeling of multiconductor systems. This technique also contributes with discussions about the electrostatic behavior of inductors through the concept of a capacitive coupling matrix. Based on standard cells, the proposed technique is feasible to be adapted for distinct turn, layer or macro level arrangements, provided that a pattern may be evaluated and replicated. |
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2018-10-24T19:54:24Z2018-10-24T19:54:24Z2017-12-19http://repositorio.ufsm.br/handle/1/14662This Doctoral Thesis presents a detailed study about stray capacitances in electromagnetic systems, with a special focus on inductors and transformer windings. The main objective of research is the development of a method for evaluating stray capacitances in multiconductor systems, more exactly self-capacitances and parasitic capacitors between turns. The proposed technique is based on the use of standard cells to be applied in a matching routine of turn, layer or macrolevel arrangements along the length of a coil. A standard cell is defined as a minimal and basic turn, layer or macrolevel arrangement that represents the main patterns of electrostatic energy stored on a multiconductor system. Therefore, standard cells enable the adequate calculation of the capacitive relations established in a multiconductor system, substantiated by the concept of an equivalent capacitive coupling matrix. The standard cell embraces mathematical rules for determining stray capacitances. These expressions are derived by means of a curve fitting approach through a set of Finite Element Analysis (FEA) simulations under the FEMM 4.2 (Finite Element Method Magnetics 4.2) environment and complementary computations on Mathematica 11.1.1.0. As a first step of this research process, a contextualization regarding the representation and estimation of parasitic capacitances is provided, together with an overview of analytical techniques currently available in the scientific literature and FEA simulations. As a second step, four inductor prototypes and their SPICE and EMTP-ATP (ElectroMagnetic Transients Program – Alternative Transients Program) implementations are verified. The equivalent circuits of the prototypes and the proposed technique are validated by comparing frequencyand time-domain (step transient response) characteristics, as well as the equivalent series impedance obtained from simulations and laboratory measurements. The proposed technique corroborates with other researches about medium- and high-frequency modeling of multiconductor systems. This technique also contributes with discussions about the electrostatic behavior of inductors through the concept of a capacitive coupling matrix. Based on standard cells, the proposed technique is feasible to be adapted for distinct turn, layer or macro level arrangements, provided that a pattern may be evaluated and replicated.Esta Tese de Doutorado apresenta um estudo detalhado sobre as capacitâncias parasitas de sistemas eletromagnéticos, com ênfase em indutores e enrolamentos de transformadores. O objetivo geral da pesquisa é o desenvolvimento de um método para o cálculo preciso das capacitâncias parasitas em dispositivos bobinados, especificamente as autocapacitâncias e as capacitâncias parasitas entre espiras. A metodologia proposta baseia-se no uso de células padrões durante uma rotina de identificação e correspondência de espiras, camadas ou formações em nível macro ao longo de um enrolamento. A célula padrão é um arranjo mínimo e básico de um sistema de múltiplos condutores, capaz de descrever os valores típicos da energia eletrostática armazenada nesse sistema. Com isso, a célula padrão possibilita o cálculo das principais relações capacitivas existentes em um certo dispositivo, respeitando uma matriz de acoplamento capacitivo completa. Regras matemáticas para esses cálculos são definidas por meio de ajustes de curvas características realizados no Mathematica 11.1.1.0, cujos dados são obtidos através do Método dos Elementos Finitos (MEF), executado no simulador FEMM 4.2 (Finite Element Method Magnetics 4.2). A primeira etapa dos trabalhos envolveu uma investigação teórica e experimental, assim como uma análise comparativa entre técnicas disponibilizadas na literatura especializada e o MEF para a determinação de capacitâncias parasitas. A segunda etapa dos trabalhos abrangeu a verificação e a implementação de circuitos equivalentes de solenoides no SPICE e no EMTP-ATP (ElectroMagnetic Transients Program – Alternative Transients Program). Os resultados dessas duas etapas viabilizaram a validação do método proposto e das representações equivalentes de quatro protótipos de indutores. Comparações foram realizadas no domínio da frequência, do tempo (resposta transitória ao degrau) e da impedância série equivalente entre as simulações e as observações experimentais. O método proposto corrobora com outras pesquisas científicas sobre transitórios eletromagnéticos de frentes rápida e muito rápida. A proposta contribui também com discussões sobre o comportamento eletrostático de dispositivos bobinados através do conceito de uma matriz de acoplamento capacitivo. Por fim, as células padrões podem ser utilizadas em outras aplicações, desde que um padrão possa ser avaliado e replicado.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/openAccessCapacitância parasitaCapacitância de fugaCélula padrãoIndutorTransformadorEnrolamentoModelagemAltas frequênciasResposta em frequênciaSPICEEMTP-ATPMétodo dos elementos finitosTransitórios eletromagnéticosParasitic capacitanceStray capacitanceStandard cellInductorTransformerWindingModelingHigh-frequencyFrequency responseSPICEEMTP-ATPFinite element methodFinite element analysisElectromagnetic transientsCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAMétodo para a determinação de capacitâncias parasitas em sistemas eletromagnéticosMethod for evaluating stray capacitances in electromagnetic systemsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisCardoso Junior, Ghendyhttp://lattes.cnpq.br/6284386218725402Oliveira, Aécio de Limahttp://lattes.cnpq.br/3513022402512752Marchesan, Gustavohttp://lattes.cnpq.br/4254867243649147Bastos, João Pedro Assumpçãohttp://lattes.cnpq.br/9859703662630141Marchesan, Tiago Bandeirahttp://lattes.cnpq.br/2318413245910780http://lattes.cnpq.br/8846358506427099Gutierres, Luiz Fernando de Freitas300400000007600eed4f55e-1a74-47ce-afc0-4daa8655d8a38078d959-4f26-4e32-9b1d-5e8983c463f1b325897b-e199-425a-9d1d-34f3c1e4e8c10697ee91-b245-4b63-bad9-fd26200fe829b837652b-5fa0-462d-9a1c-c7a1c82b306311dd6331-2eb5-4d46-a5ae-9eda760ef1f3reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEE_2017_GUTIERRES_LUIZ.pdfTES_PPGEE_2017_GUTIERRES_LUIZ.pdfTese de Doutoradoapplication/pdf111081419http://repositorio.ufsm.br/bitstream/1/14662/1/TES_PPGEE_2017_GUTIERRES_LUIZ.pdfb364f6c4003689bf38d5a522a7f708e7MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
dc.title.alternative.eng.fl_str_mv |
Method for evaluating stray capacitances in electromagnetic systems |
title |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
spellingShingle |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos Gutierres, Luiz Fernando de Freitas Capacitância parasita Capacitância de fuga Célula padrão Indutor Transformador Enrolamento Modelagem Altas frequências Resposta em frequência SPICE EMTP-ATP Método dos elementos finitos Transitórios eletromagnéticos Parasitic capacitance Stray capacitance Standard cell Inductor Transformer Winding Modeling High-frequency Frequency response SPICE EMTP-ATP Finite element method Finite element analysis Electromagnetic transients CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
title_short |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
title_full |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
title_fullStr |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
title_full_unstemmed |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
title_sort |
Método para a determinação de capacitâncias parasitas em sistemas eletromagnéticos |
author |
Gutierres, Luiz Fernando de Freitas |
author_facet |
Gutierres, Luiz Fernando de Freitas |
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 |
Marchesan, Gustavo |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4254867243649147 |
dc.contributor.referee3.fl_str_mv |
Bastos, João Pedro Assumpção |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/9859703662630141 |
dc.contributor.referee4.fl_str_mv |
Marchesan, Tiago Bandeira |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/2318413245910780 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8846358506427099 |
dc.contributor.author.fl_str_mv |
Gutierres, Luiz Fernando de Freitas |
contributor_str_mv |
Cardoso Junior, Ghendy Oliveira, Aécio de Lima Marchesan, Gustavo Bastos, João Pedro Assumpção Marchesan, Tiago Bandeira |
dc.subject.por.fl_str_mv |
Capacitância parasita Capacitância de fuga Célula padrão Indutor Transformador Enrolamento Modelagem Altas frequências Resposta em frequência SPICE EMTP-ATP Método dos elementos finitos Transitórios eletromagnéticos |
topic |
Capacitância parasita Capacitância de fuga Célula padrão Indutor Transformador Enrolamento Modelagem Altas frequências Resposta em frequência SPICE EMTP-ATP Método dos elementos finitos Transitórios eletromagnéticos Parasitic capacitance Stray capacitance Standard cell Inductor Transformer Winding Modeling High-frequency Frequency response SPICE EMTP-ATP Finite element method Finite element analysis Electromagnetic transients CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
dc.subject.eng.fl_str_mv |
Parasitic capacitance Stray capacitance Standard cell Inductor Transformer Winding Modeling High-frequency Frequency response SPICE EMTP-ATP Finite element method Finite element analysis Electromagnetic transients |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
description |
This Doctoral Thesis presents a detailed study about stray capacitances in electromagnetic systems, with a special focus on inductors and transformer windings. The main objective of research is the development of a method for evaluating stray capacitances in multiconductor systems, more exactly self-capacitances and parasitic capacitors between turns. The proposed technique is based on the use of standard cells to be applied in a matching routine of turn, layer or macrolevel arrangements along the length of a coil. A standard cell is defined as a minimal and basic turn, layer or macrolevel arrangement that represents the main patterns of electrostatic energy stored on a multiconductor system. Therefore, standard cells enable the adequate calculation of the capacitive relations established in a multiconductor system, substantiated by the concept of an equivalent capacitive coupling matrix. The standard cell embraces mathematical rules for determining stray capacitances. These expressions are derived by means of a curve fitting approach through a set of Finite Element Analysis (FEA) simulations under the FEMM 4.2 (Finite Element Method Magnetics 4.2) environment and complementary computations on Mathematica 11.1.1.0. As a first step of this research process, a contextualization regarding the representation and estimation of parasitic capacitances is provided, together with an overview of analytical techniques currently available in the scientific literature and FEA simulations. As a second step, four inductor prototypes and their SPICE and EMTP-ATP (ElectroMagnetic Transients Program – Alternative Transients Program) implementations are verified. The equivalent circuits of the prototypes and the proposed technique are validated by comparing frequencyand time-domain (step transient response) characteristics, as well as the equivalent series impedance obtained from simulations and laboratory measurements. The proposed technique corroborates with other researches about medium- and high-frequency modeling of multiconductor systems. This technique also contributes with discussions about the electrostatic behavior of inductors through the concept of a capacitive coupling matrix. Based on standard cells, the proposed technique is feasible to be adapted for distinct turn, layer or macro level arrangements, provided that a pattern may be evaluated and replicated. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-12-19 |
dc.date.accessioned.fl_str_mv |
2018-10-24T19:54:24Z |
dc.date.available.fl_str_mv |
2018-10-24T19:54:24Z |
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/1/14662 |
url |
http://repositorio.ufsm.br/handle/1/14662 |
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 |
institution |
UFSM |
reponame_str |
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collection |
Manancial - Repositório Digital da UFSM |
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