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Modeling of Three-Phase Transformers for Naval Applications Considering Transient Analysis.

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Title: Modeling of Three-Phase Transformers for Naval Applications Considering Transient Analysis.
Authors: Pereira, Marcelo Cairo1 (AUTHOR), de Albuquerque, Felipe Proença2 (AUTHOR), da Costa, Eduardo Coelho Marques1,3 (AUTHOR) educosta@usp.br, Caballero, Pablo Torrez1,3 (AUTHOR)
Source: Energies (19961073). Apr2026, Vol. 19 Issue 8, p1877. 17p.
Subject Terms: *Transient analysis, *Power transformers, *Electromagnetic compatibility, *Power system simulation, *System identification, *Marine engineering
Abstract: This paper presents a systematic methodology for time-domain modeling of three-phase power transformers aimed at electromagnetic transient analysis in shipboard and embedded electrical systems. Accurate modeling of transformers in such environments is critical, as naval power systems are subject to strict electromagnetic compatibility (EMC) requirements and are particularly susceptible to fast transients caused by switching operations, fault events, and nonlinear loads operating in confined and isolated grids. The proposed approach combines the Vector Fitting (VF) algorithm with Clarke modal decomposition to obtain stable, passive, and causal rational approximations of the frequency-dependent admittance matrix over a wide frequency range. The admittance matrix is first identified from frequency-domain measurements or simulations, capturing the transformer's terminal behavior across multiple frequency sub-bands. Clarke's transformation is then applied to decouple the three-phase system into independent modal components—namely the zero-sequence and positive-sequence modes, reducing the original multi-phase problem to a set of independent single-phase systems. This modal decoupling significantly improves computational efficiency without sacrificing accuracy, as each mode can be fitted and simulated independently. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193438217
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Modeling of Three-Phase Transformers for Naval Applications Considering Transient Analysis.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Pereira%2C+Marcelo+Cairo%22">Pereira, Marcelo Cairo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22de+Albuquerque%2C+Felipe+Proença%22">de Albuquerque, Felipe Proença</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22da+Costa%2C+Eduardo+Coelho+Marques%22">da Costa, Eduardo Coelho Marques</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> educosta@usp.br</i><br /><searchLink fieldCode="AR" term="%22Caballero%2C+Pablo+Torrez%22">Caballero, Pablo Torrez</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Apr2026, Vol. 19 Issue 8, p1877. 17p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Transient+analysis%22">Transient analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Power+transformers%22">Power transformers</searchLink><br />*<searchLink fieldCode="DE" term="%22Electromagnetic+compatibility%22">Electromagnetic compatibility</searchLink><br />*<searchLink fieldCode="DE" term="%22Power+system+simulation%22">Power system simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22System+identification%22">System identification</searchLink><br />*<searchLink fieldCode="DE" term="%22Marine+engineering%22">Marine engineering</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents a systematic methodology for time-domain modeling of three-phase power transformers aimed at electromagnetic transient analysis in shipboard and embedded electrical systems. Accurate modeling of transformers in such environments is critical, as naval power systems are subject to strict electromagnetic compatibility (EMC) requirements and are particularly susceptible to fast transients caused by switching operations, fault events, and nonlinear loads operating in confined and isolated grids. The proposed approach combines the Vector Fitting (VF) algorithm with Clarke modal decomposition to obtain stable, passive, and causal rational approximations of the frequency-dependent admittance matrix over a wide frequency range. The admittance matrix is first identified from frequency-domain measurements or simulations, capturing the transformer's terminal behavior across multiple frequency sub-bands. Clarke's transformation is then applied to decouple the three-phase system into independent modal components—namely the zero-sequence and positive-sequence modes, reducing the original multi-phase problem to a set of independent single-phase systems. This modal decoupling significantly improves computational efficiency without sacrificing accuracy, as each mode can be fitted and simulated independently. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=193438217
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19081877
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 17
        StartPage: 1877
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      – SubjectFull: Transient analysis
        Type: general
      – SubjectFull: Power transformers
        Type: general
      – SubjectFull: Electromagnetic compatibility
        Type: general
      – SubjectFull: Power system simulation
        Type: general
      – SubjectFull: System identification
        Type: general
      – SubjectFull: Marine engineering
        Type: general
    Titles:
      – TitleFull: Modeling of Three-Phase Transformers for Naval Applications Considering Transient Analysis.
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            NameFull: Pereira, Marcelo Cairo
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            NameFull: de Albuquerque, Felipe Proença
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            NameFull: da Costa, Eduardo Coelho Marques
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            NameFull: Caballero, Pablo Torrez
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          Dates:
            – D: 15
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 8
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            – TitleFull: Energies (19961073)
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