Cristin-resultat-ID: 1682798
Sist endret: 21. april 2020, 09:26
NVI-rapporteringsår: 2019
Resultat
Vitenskapelig artikkel
2019

Time Domain Implementation of Damping Factor White-Box Transformer Model for Inclusion in EMT Simulation Programs

Bidragsytere:
  • Bjørn Alfred Gustavsen
  • Cesar Martin og
  • Alvaro Portillo

Tidsskrift

IEEE Transactions on Power Delivery
ISSN 0885-8977
e-ISSN 1937-4208
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2019
Publisert online: 2019
Trykket: 2020
Volum: 35
Hefte: 2
Sider: 464 - 472
Open Access

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Tittel

Time Domain Implementation of Damping Factor White-Box Transformer Model for Inclusion in EMT Simulation Programs

Sammendrag

White-box detailed transformer models are used by manufacturers for predicting internal overvoltages in transformer windings during the lightning impulse test. One such model is the d-factor model which is based on a lumped-parameter description based on winding discretization with inclusion of losses via an empirical, frequency-dependent damping factor. This paper shows a procedure for direct inclusion of the d-factor model in electromagnetic transients simulation programs for use in general studies of network overvoltages. Proper utilization of the model's diagonal structure is utilized in combination with real-valued arithmetic for maximum speed in transient simulations, with optional initialization from sinusoidal steady state conditions. The model can be used both as a terminal equivalent and for calculation of internal voltages with use of an augmented input data set. The method is demonstrated for a single-phase three-winding transformer which is applied in a simulation study of transient resonant voltage buildup in the tertiary winding.

Bidragsytere

Bjørn Gustavsen

Bidragsyterens navn vises på dette resultatet som Bjørn Alfred Gustavsen
  • Tilknyttet:
    Forfatter
    ved Energisystemer ved SINTEF Energi AS

Cesar Martin

  • Tilknyttet:
    Forfatter
    ved Frankrike

Alvaro Portillo

  • Tilknyttet:
    Forfatter
    ved Uruguay
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