Zobrazit v EDS

Controladores robustos adaptativos para um conversor trifásico a três fios conectado à rede com filtro LCL ; Robust adaptive controllers for a three-phase grid-tied 3-wire converter by LCL filter

Uloženo v:
Podrobná bibliografie
Název: Controladores robustos adaptativos para um conversor trifásico a três fios conectado à rede com filtro LCL ; Robust adaptive controllers for a three-phase grid-tied 3-wire converter by LCL filter
Autoři: Evald, Paulo Jefferson Dias de Oliveira
Přispěvatelé: Grundling, Hilton Abílio, http://lattes.cnpq.br/6128096609162437, Stefanello, Marcio, Lima, Sigmar de, Gastaldini, Cristiane Cauduro, Vieira, Rodrigo Padilha
Informace o vydavateli: Universidade Federal de Santa Maria
Brasil
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
Centro de Tecnologia
Rok vydání: 2021
Sbírka: Manancial - Repositório Digital da UFSM (Universidade Federal de Santa Maria)
Témata: Controlador robusto adaptativo, Controlador discreto no tempo, Filtro LCL, Modelo de ordem reduzida, Conversores conectados à rede elétrica, Robust adaptive controller, Discrete-time controller, LCL filter, Reduced order model, Grid-tied converters, CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
Popis: This work presents new robust adaptive control strategies of adaptive robust controllers, in discrete time, applied to the grid-injected currents control of a voltage-fed three-phase three-wires static converter connected to the electrical grid with LCL filter. The application of adaptive controllers on grid-tied converters is justified due to the uncertainties and pa- rametric variations inherent to the grid impedance. However, typically, adaptive controllers based on a reference model implemented for this application are complexes, because the reference model need to has the same relative degree of modelled part of the plant, which is equal to three, in continuous time, or relative degree equal to two, if discretised consi- dering implementation delay. It implies on a complex control design and will require a high processing capacity from microcontroller to execute it. Thereby, initially an order reduction of LCL filter model is proposed, where is demonstrated mathematically that filter capacitor can be considered as an unmodelled dynamics of additive type, resulting in an first order model. With this, it is possible to design a robust adaptive controller with a first order re- ference model, since the relative degree of the modelled part of the plant is one. Next, two new robust adaptive controllers are proposed, entirely in discrete time. The first new strategy, PI-RMRAC, is a robust PI (Proportional-Integral) controller based on a reference model. This new control approach is a reformulation of the parameter vector, which, like the previous strategy, is based on a first-order reference model. The second proposed new controller, a robust adaptive PI controller, tracks straightforwardly the reference currents, consequently it does not require the reference model implementation, further simplifying the controller design. In this controller, the identification of adaptive gains is equivalent to estimate, indirectly, the closed-loop system gains. Furthermore, the stability and robustness proofs of controllers, in ...
Druh dokumentu: thesis
Popis souboru: application/pdf
Jazyk: Portuguese
Relation: http://repositorio.ufsm.br/handle/1/22697
Dostupnost: http://repositorio.ufsm.br/handle/1/22697
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International ; http://creativecommons.org/licenses/by-nc-nd/4.0/
Přístupové číslo: edsbas.BDC98BA2
Databáze: BASE
FullText Text:
  Availability: 0
CustomLinks:
  – Url: http://repositorio.ufsm.br/handle/1/22697#
    Name: EDS - BASE (s4221598)
    Category: fullText
    Text: View record from BASE
  – Url: https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=EBSCO&SrcAuth=EBSCO&DestApp=WOS&ServiceName=TransferToWoS&DestLinkType=GeneralSearchSummary&Func=Links&author=Evald%20PJDdO
    Name: ISI
    Category: fullText
    Text: Nájsť tento článok vo Web of Science
    Icon: https://imagesrvr.epnet.com/ls/20docs.gif
    MouseOverText: Nájsť tento článok vo Web of Science
Header DbId: edsbas
DbLabel: BASE
An: edsbas.BDC98BA2
RelevancyScore: 841
AccessLevel: 3
PubType: Dissertation/ Thesis
PubTypeId: dissertation
PreciseRelevancyScore: 840.946350097656
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Controladores robustos adaptativos para um conversor trifásico a três fios conectado à rede com filtro LCL ; Robust adaptive controllers for a three-phase grid-tied 3-wire converter by LCL filter
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Evald%2C+Paulo+Jefferson+Dias+de+Oliveira%22">Evald, Paulo Jefferson Dias de Oliveira</searchLink>
– Name: Author
  Label: Contributors
  Group: Au
  Data: Grundling, Hilton Abílio<br />http://lattes.cnpq.br/6128096609162437<br />Stefanello, Marcio<br />Lima, Sigmar de<br />Gastaldini, Cristiane Cauduro<br />Vieira, Rodrigo Padilha
– Name: Publisher
  Label: Publisher Information
  Group: PubInfo
  Data: Universidade Federal de Santa Maria<br />Brasil<br />Engenharia Elétrica<br />UFSM<br />Programa de Pós-Graduação em Engenharia Elétrica<br />Centro de Tecnologia
– Name: DatePubCY
  Label: Publication Year
  Group: Date
  Data: 2021
– Name: Subset
  Label: Collection
  Group: HoldingsInfo
  Data: Manancial - Repositório Digital da UFSM (Universidade Federal de Santa Maria)
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Controlador+robusto+adaptativo%22">Controlador robusto adaptativo</searchLink><br /><searchLink fieldCode="DE" term="%22Controlador+discreto+no+tempo%22">Controlador discreto no tempo</searchLink><br /><searchLink fieldCode="DE" term="%22Filtro+LCL%22">Filtro LCL</searchLink><br /><searchLink fieldCode="DE" term="%22Modelo+de+ordem+reduzida%22">Modelo de ordem reduzida</searchLink><br /><searchLink fieldCode="DE" term="%22Conversores+conectados+à+rede+elétrica%22">Conversores conectados à rede elétrica</searchLink><br /><searchLink fieldCode="DE" term="%22Robust+adaptive+controller%22">Robust adaptive controller</searchLink><br /><searchLink fieldCode="DE" term="%22Discrete-time+controller%22">Discrete-time controller</searchLink><br /><searchLink fieldCode="DE" term="%22LCL+filter%22">LCL filter</searchLink><br /><searchLink fieldCode="DE" term="%22Reduced+order+model%22">Reduced order model</searchLink><br /><searchLink fieldCode="DE" term="%22Grid-tied+converters%22">Grid-tied converters</searchLink><br /><searchLink fieldCode="DE" term="%22CNPQ%3A%3AENGENHARIAS%3A%3AENGENHARIA+ELETRICA%22">CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: This work presents new robust adaptive control strategies of adaptive robust controllers, in discrete time, applied to the grid-injected currents control of a voltage-fed three-phase three-wires static converter connected to the electrical grid with LCL filter. The application of adaptive controllers on grid-tied converters is justified due to the uncertainties and pa- rametric variations inherent to the grid impedance. However, typically, adaptive controllers based on a reference model implemented for this application are complexes, because the reference model need to has the same relative degree of modelled part of the plant, which is equal to three, in continuous time, or relative degree equal to two, if discretised consi- dering implementation delay. It implies on a complex control design and will require a high processing capacity from microcontroller to execute it. Thereby, initially an order reduction of LCL filter model is proposed, where is demonstrated mathematically that filter capacitor can be considered as an unmodelled dynamics of additive type, resulting in an first order model. With this, it is possible to design a robust adaptive controller with a first order re- ference model, since the relative degree of the modelled part of the plant is one. Next, two new robust adaptive controllers are proposed, entirely in discrete time. The first new strategy, PI-RMRAC, is a robust PI (Proportional-Integral) controller based on a reference model. This new control approach is a reformulation of the parameter vector, which, like the previous strategy, is based on a first-order reference model. The second proposed new controller, a robust adaptive PI controller, tracks straightforwardly the reference currents, consequently it does not require the reference model implementation, further simplifying the controller design. In this controller, the identification of adaptive gains is equivalent to estimate, indirectly, the closed-loop system gains. Furthermore, the stability and robustness proofs of controllers, in ...
– Name: TypeDocument
  Label: Document Type
  Group: TypDoc
  Data: thesis
– Name: Format
  Label: File Description
  Group: SrcInfo
  Data: application/pdf
– Name: Language
  Label: Language
  Group: Lang
  Data: Portuguese
– Name: NoteTitleSource
  Label: Relation
  Group: SrcInfo
  Data: http://repositorio.ufsm.br/handle/1/22697
– Name: URL
  Label: Availability
  Group: URL
  Data: http://repositorio.ufsm.br/handle/1/22697
– Name: Copyright
  Label: Rights
  Group: Cpyrght
  Data: Attribution-NonCommercial-NoDerivatives 4.0 International ; http://creativecommons.org/licenses/by-nc-nd/4.0/
– Name: AN
  Label: Accession Number
  Group: ID
  Data: edsbas.BDC98BA2
PLink https://erproxy.cvtisr.sk/sfx/access?url=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edsbas&AN=edsbas.BDC98BA2
RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Text: Portuguese
    Subjects:
      – SubjectFull: Controlador robusto adaptativo
        Type: general
      – SubjectFull: Controlador discreto no tempo
        Type: general
      – SubjectFull: Filtro LCL
        Type: general
      – SubjectFull: Modelo de ordem reduzida
        Type: general
      – SubjectFull: Conversores conectados à rede elétrica
        Type: general
      – SubjectFull: Robust adaptive controller
        Type: general
      – SubjectFull: Discrete-time controller
        Type: general
      – SubjectFull: LCL filter
        Type: general
      – SubjectFull: Reduced order model
        Type: general
      – SubjectFull: Grid-tied converters
        Type: general
      – SubjectFull: CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
        Type: general
    Titles:
      – TitleFull: Controladores robustos adaptativos para um conversor trifásico a três fios conectado à rede com filtro LCL ; Robust adaptive controllers for a three-phase grid-tied 3-wire converter by LCL filter
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Evald, Paulo Jefferson Dias de Oliveira
      – PersonEntity:
          Name:
            NameFull: Grundling, Hilton Abílio
      – PersonEntity:
          Name:
            NameFull: http://lattes.cnpq.br/6128096609162437
      – PersonEntity:
          Name:
            NameFull: Stefanello, Marcio
      – PersonEntity:
          Name:
            NameFull: Lima, Sigmar de
      – PersonEntity:
          Name:
            NameFull: Gastaldini, Cristiane Cauduro
      – PersonEntity:
          Name:
            NameFull: Vieira, Rodrigo Padilha
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2021
          Identifiers:
            – Type: issn-locals
              Value: edsbas
            – Type: issn-locals
              Value: edsbas.oa
ResultId 1