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Multi-scale computations of parameters of transformer windings at high frequencies. Part I

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Názov: Multi-scale computations of parameters of transformer windings at high frequencies. Part I
Autori: Podoltsev, Alexander, 1951, Abeywickrama, Nilanga, 1976, Serdyuk, Yuriy, 1963, Gubanski, Stanislaw, 1950
Zdroj: IEEE Transactions on Magnetics. 43(11):3991-3998
Predmety: finite element method, multi-scale analysis, Eddy current, frequency-dependent parameters, effective diamagnetic properties, power transformer windings., proximity effect
Popis: A hierarchical multi-scale approach to modeling of high frequency phenomena in power transformers is proposed. The method is based on considering high frequency effects on two spatial levels. Part I of the paper focuses on a small-scale level where eddy current as well as geometrical and proximity effects in conductors of transformer windings are examined. The developed computer model accounts for anisotropic frequency-dependent effective diamagnetic properties of transformer windings, which are represented as composite media with periodic structure. Effective characteristics of the laminated transformer core are calculated taking into account anisotropic magnetic properties of steel sheets. The obtained frequency-dependent parameters of transformer elements are further used in Part II for computing effective inductances and resistances of windings and integral losses on a large-scale level, i.e. for the whole transformer.
Prístupová URL adresa: https://research.chalmers.se/publication/61159
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  Label: Title
  Group: Ti
  Data: Multi-scale computations of parameters of transformer windings at high frequencies. Part I
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Podoltsev%2C+Alexander%22">Podoltsev, Alexander</searchLink>, 1951<br /><searchLink fieldCode="AR" term="%22Abeywickrama%2C+Nilanga%22">Abeywickrama, Nilanga</searchLink>, 1976<br /><searchLink fieldCode="AR" term="%22Serdyuk%2C+Yuriy%22">Serdyuk, Yuriy</searchLink>, 1963<br /><searchLink fieldCode="AR" term="%22Gubanski%2C+Stanislaw%22">Gubanski, Stanislaw</searchLink>, 1950
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  Label: Source
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  Data: <i>IEEE Transactions on Magnetics</i>. 43(11):3991-3998
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  Data: <searchLink fieldCode="DE" term="%22finite+element+method%22">finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22multi-scale+analysis%22">multi-scale analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Eddy+current%22">Eddy current</searchLink><br /><searchLink fieldCode="DE" term="%22frequency-dependent+parameters%22">frequency-dependent parameters</searchLink><br /><searchLink fieldCode="DE" term="%22effective+diamagnetic+properties%22">effective diamagnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22power+transformer+windings%2E%22">power transformer windings.</searchLink><br /><searchLink fieldCode="DE" term="%22proximity+effect%22">proximity effect</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: A hierarchical multi-scale approach to modeling of high frequency phenomena in power transformers is proposed. The method is based on considering high frequency effects on two spatial levels. Part I of the paper focuses on a small-scale level where eddy current as well as geometrical and proximity effects in conductors of transformer windings are examined. The developed computer model accounts for anisotropic frequency-dependent effective diamagnetic properties of transformer windings, which are represented as composite media with periodic structure. Effective characteristics of the laminated transformer core are calculated taking into account anisotropic magnetic properties of steel sheets. The obtained frequency-dependent parameters of transformer elements are further used in Part II for computing effective inductances and resistances of windings and integral losses on a large-scale level, i.e. for the whole transformer.
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1109/TMAG.2007.906220
    Languages:
      – Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 3991
    Subjects:
      – SubjectFull: finite element method
        Type: general
      – SubjectFull: multi-scale analysis
        Type: general
      – SubjectFull: Eddy current
        Type: general
      – SubjectFull: frequency-dependent parameters
        Type: general
      – SubjectFull: effective diamagnetic properties
        Type: general
      – SubjectFull: power transformer windings.
        Type: general
      – SubjectFull: proximity effect
        Type: general
    Titles:
      – TitleFull: Multi-scale computations of parameters of transformer windings at high frequencies. Part I
        Type: main
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          Name:
            NameFull: Podoltsev, Alexander
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            NameFull: Abeywickrama, Nilanga
      – PersonEntity:
          Name:
            NameFull: Serdyuk, Yuriy
      – PersonEntity:
          Name:
            NameFull: Gubanski, Stanislaw
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          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2007
          Identifiers:
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              Value: 19410069
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              Value: 43
            – Type: issue
              Value: 11
          Titles:
            – TitleFull: IEEE Transactions on Magnetics
              Type: main
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