Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão

Detalhes bibliográficos
Autor(a) principal: Gabe, Ivan Jorge
Data de Publicação: 2012
Tipo de documento: Tese
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
Texto Completo: http://repositorio.ufsm.br/handle/1/3678
Resumo: This thesis addresses the main issues regarding the operation of full power converters wind turbines connected to the grid under balanced and unbalanced voltage sags. In the past, the grid codes allowed wind turbines to be disconnected during voltage and frequency disturbances. However, recently, grid codes updates often require that wind turbines remain connected during voltage sags aiming to provide voltage back-up support. Furthermore, some specific criteria establish that wind turbines should be able to utilize part of its current capability to promote the voltage back-up during unbalanced voltage sags. To guarantee the grid connected converter operation, even with voltage sags that lead to zero-voltage situations and unbalanced voltage conditions, a synchronous frame PLL with a very low time constant is designed and adapted with a Kalmam filter synchronization system. This thesis propose a two stages synchronization for grid connected converters that is able to ensure proper operation of the converter even when voltage on the converter terminals has temporarily falling down to zero. This goal is meet with a synchronous frame PLL with a very low time constant adapted with a Kalmam filter synchronization system. This composed synchronization system allows the converter control system to get the positive and negative sequences voltages components, that are necessary to the output power control even under severe voltage dips. Moreover, an anti windup is adapted to operate with a resonant current controller enabling the minimization of the saturation in the control action during voltage transients. During unbalanced voltage dips, the injection of unbalanced currents to the voltage back-up support becomes a good alternative to reduce the imbalance factor of the grid voltages. However, it is necessary to limit the maximum current output of the converter to avoid undesirable protection trips. This thesis proposes a strategy that limite the output currents allowing the use of the converter full current capacity during unbalanced voltage sags support. To achieve this goal, the current references are divided into three parts. The former is associated with the active power reference synchronized with the positive sequence voltage. The second is the reactive power synchronized with the positive sequence voltage and the third is the reactive power synchronized with the negative sequence voltage. The strategy propose the computation of th reactive power references by the positive and negative sequence voltages on the PPC in order to not overpass the converter current limits. Experimental and simulation results corroborate the contributions of this thesis.
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spelling Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensãoAnalysis and control of wind turbines with full scale converter during voltage dipsConversores conectados à redeGeração distribuídaSuporte de reativosSuportabilidade de tensãoGrid connected converterLow voltage ride throughVoltage supportDistributed generationCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAThis thesis addresses the main issues regarding the operation of full power converters wind turbines connected to the grid under balanced and unbalanced voltage sags. In the past, the grid codes allowed wind turbines to be disconnected during voltage and frequency disturbances. However, recently, grid codes updates often require that wind turbines remain connected during voltage sags aiming to provide voltage back-up support. Furthermore, some specific criteria establish that wind turbines should be able to utilize part of its current capability to promote the voltage back-up during unbalanced voltage sags. To guarantee the grid connected converter operation, even with voltage sags that lead to zero-voltage situations and unbalanced voltage conditions, a synchronous frame PLL with a very low time constant is designed and adapted with a Kalmam filter synchronization system. This thesis propose a two stages synchronization for grid connected converters that is able to ensure proper operation of the converter even when voltage on the converter terminals has temporarily falling down to zero. This goal is meet with a synchronous frame PLL with a very low time constant adapted with a Kalmam filter synchronization system. This composed synchronization system allows the converter control system to get the positive and negative sequences voltages components, that are necessary to the output power control even under severe voltage dips. Moreover, an anti windup is adapted to operate with a resonant current controller enabling the minimization of the saturation in the control action during voltage transients. During unbalanced voltage dips, the injection of unbalanced currents to the voltage back-up support becomes a good alternative to reduce the imbalance factor of the grid voltages. However, it is necessary to limit the maximum current output of the converter to avoid undesirable protection trips. This thesis proposes a strategy that limite the output currents allowing the use of the converter full current capacity during unbalanced voltage sags support. To achieve this goal, the current references are divided into three parts. The former is associated with the active power reference synchronized with the positive sequence voltage. The second is the reactive power synchronized with the positive sequence voltage and the third is the reactive power synchronized with the negative sequence voltage. The strategy propose the computation of th reactive power references by the positive and negative sequence voltages on the PPC in order to not overpass the converter current limits. Experimental and simulation results corroborate the contributions of this thesis.Conselho Nacional de Desenvolvimento Científico e TecnológicoEsta tese trata do problema de operação de aerogeradores com conversores plenos conectados à rede durante afundamentos de tensão equilibrados e desequilibrados. Inicialmente, os códigos de rede permitiam a desconexão dos aerogeradores durante distúrbios de frequência ou durante afundamentos de tensão. Entretanto, a presente tendência dos requisitos de conexão em diversos países obriga os aerogeradores a permanecerem conectados a contribuição destes com injeção de corrente reativa visando dar suporte à tensão. Além disso, alguns critérios especifícos estabelecem que aerogeradores devem ser capazes de utilizar parte de sua capacidade de corrente para promover o suporte de reativos também durante afundamentos desequilibrados. Nesta tese é apresentado um método de sincronismo composto baseado em filtro de Kalman e aplicado para conversores conectados à rede durante afundamentos de tensão que possam levar a tensão a zero no ponto de conexão. Este possibilita a obtenção das componentes de sequência e as suas tensões em quadratura de maneira simples, além de apresentar um bom desempenho dinâmico durante afundamentos desequilibrados. Além disso, uma estrutura anti windup é adaptada para operar com um controlador ressonante de corrente possibilitando a minimização da saturação da ação de controle na síntese das correntes de saída. Uma vez que o conversor do lado da rede é capaz de operar em condições severas de maneira adequada, a injeção de corrente reativa de forma a minimizar a tensão se sequência negativa no ponto de conexão é uma possibilidade para a diminuição do fator de desequilíbrio. Entretanto é necessário limitar as correntes máximas de saída do conversor. Esta tese propõem uma estratégia de limitação de corrente para conversores conectados à rede que possibilita o uso da plena capacidade de corrente do conversor na injeção de correntes desequilibradas para o suporte de tensão. Para atingir esse objetivo, as referências de corrente são dividas em três partes e com objetivos distintos. A primeira é associada a potência ativa sincronizada com a tensão de sequência positiva. A segunda representa a parcela de potência reativa sincronizada com a tensão de sequência positiva e a terceira parcela representa a potência reativa sincronizada com a tensão de sequência negativa. Pelo cômputo da norma máxima das correntes por uma expressão genérica é possível determinar as correntes de referência que respeitam os limites de corrente do conversor. Resultados de simulação e experimentais corroboram as contribuições desta tese.Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaPinheiro, Humbertohttp://lattes.cnpq.br/5900576762082210Sperandio, Mauriciohttp://lattes.cnpq.br/8051956713222836Mariotto, Lenoishttp://lattes.cnpq.br/5403381522056798Camargo, Robinson Figueiredo dehttp://lattes.cnpq.br/9486400043926456Cardoso, Rafaelhttp://lattes.cnpq.br/8148387096236908Gabe, Ivan Jorge2017-05-262017-05-262012-09-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfGABE, Ivan Jorge. Analysis and control of wind turbines with full scale converter during voltage dips. 2012. 156 f. Tese (Doutorado em Engenharia Elétrica) - Universidade Federal de Santa Maria, Santa Maria, 2012.http://repositorio.ufsm.br/handle/1/3678porinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-06-24T15:12:11Zoai:repositorio.ufsm.br:1/3678Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2024-07-29T10:35:18.201967Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
Analysis and control of wind turbines with full scale converter during voltage dips
title Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
spellingShingle Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
Gabe, Ivan Jorge
Conversores conectados à rede
Geração distribuída
Suporte de reativos
Suportabilidade de tensão
Grid connected converter
Low voltage ride through
Voltage support
Distributed generation
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
title_short Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
title_full Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
title_fullStr Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
title_full_unstemmed Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
title_sort Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
author Gabe, Ivan Jorge
author_facet Gabe, Ivan Jorge
author_role author
dc.contributor.none.fl_str_mv Pinheiro, Humberto
http://lattes.cnpq.br/5900576762082210
Sperandio, Mauricio
http://lattes.cnpq.br/8051956713222836
Mariotto, Lenois
http://lattes.cnpq.br/5403381522056798
Camargo, Robinson Figueiredo de
http://lattes.cnpq.br/9486400043926456
Cardoso, Rafael
http://lattes.cnpq.br/8148387096236908
dc.contributor.author.fl_str_mv Gabe, Ivan Jorge
dc.subject.por.fl_str_mv Conversores conectados à rede
Geração distribuída
Suporte de reativos
Suportabilidade de tensão
Grid connected converter
Low voltage ride through
Voltage support
Distributed generation
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
topic Conversores conectados à rede
Geração distribuída
Suporte de reativos
Suportabilidade de tensão
Grid connected converter
Low voltage ride through
Voltage support
Distributed generation
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
description This thesis addresses the main issues regarding the operation of full power converters wind turbines connected to the grid under balanced and unbalanced voltage sags. In the past, the grid codes allowed wind turbines to be disconnected during voltage and frequency disturbances. However, recently, grid codes updates often require that wind turbines remain connected during voltage sags aiming to provide voltage back-up support. Furthermore, some specific criteria establish that wind turbines should be able to utilize part of its current capability to promote the voltage back-up during unbalanced voltage sags. To guarantee the grid connected converter operation, even with voltage sags that lead to zero-voltage situations and unbalanced voltage conditions, a synchronous frame PLL with a very low time constant is designed and adapted with a Kalmam filter synchronization system. This thesis propose a two stages synchronization for grid connected converters that is able to ensure proper operation of the converter even when voltage on the converter terminals has temporarily falling down to zero. This goal is meet with a synchronous frame PLL with a very low time constant adapted with a Kalmam filter synchronization system. This composed synchronization system allows the converter control system to get the positive and negative sequences voltages components, that are necessary to the output power control even under severe voltage dips. Moreover, an anti windup is adapted to operate with a resonant current controller enabling the minimization of the saturation in the control action during voltage transients. During unbalanced voltage dips, the injection of unbalanced currents to the voltage back-up support becomes a good alternative to reduce the imbalance factor of the grid voltages. However, it is necessary to limit the maximum current output of the converter to avoid undesirable protection trips. This thesis proposes a strategy that limite the output currents allowing the use of the converter full current capacity during unbalanced voltage sags support. To achieve this goal, the current references are divided into three parts. The former is associated with the active power reference synchronized with the positive sequence voltage. The second is the reactive power synchronized with the positive sequence voltage and the third is the reactive power synchronized with the negative sequence voltage. The strategy propose the computation of th reactive power references by the positive and negative sequence voltages on the PPC in order to not overpass the converter current limits. Experimental and simulation results corroborate the contributions of this thesis.
publishDate 2012
dc.date.none.fl_str_mv 2012-09-28
2017-05-26
2017-05-26
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 GABE, Ivan Jorge. Analysis and control of wind turbines with full scale converter during voltage dips. 2012. 156 f. Tese (Doutorado em Engenharia Elétrica) - Universidade Federal de Santa Maria, Santa Maria, 2012.
http://repositorio.ufsm.br/handle/1/3678
identifier_str_mv GABE, Ivan Jorge. Analysis and control of wind turbines with full scale converter during voltage dips. 2012. 156 f. Tese (Doutorado em Engenharia Elétrica) - Universidade Federal de Santa Maria, Santa Maria, 2012.
url http://repositorio.ufsm.br/handle/1/3678
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da 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 Manancial - Repositório Digital da UFSM
collection Manancial - Repositório Digital da UFSM
repository.name.fl_str_mv Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv atendimento.sib@ufsm.br||tedebc@gmail.com
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