Avoiding the use of negative inductances and resistances in modeling three-winding transformers for computer simulations

Prashanth S.S. Holenarsipur, Ned Mohan, Vernon D. Albertson, Jack Christofersen

Research output: Contribution to conferencePaperpeer-review

10 Scopus citations

Abstract

Negative values of equivalent leakage inductance and winding resistance are often encountered when modeling three-winding transformers in power system simulations. These negative valued parameters can sometimes cause problems in arriving at a steady-state solution, and can result in unstable time-domain simulations. A modified equivalent circuit based on an autotransformer is proposed for three-winding transformer modeling. This model requires only positive values of inductances and resistances and thus leads to stable numerical solutions. Such a model can be derived for most practical situations. The superiority of the proposed model is demonstrated by means of an EMTP/ATP simulation of a test case involving a single-phase three-winding transformer.

Original languageEnglish (US)
Pages1025-1030
Number of pages6
StatePublished - 1999
EventProceedings of the 1999 Winter Meeting of IEEE Power Engineering Society. Part 1 (of 2) - New York, NY, USA
Duration: Jan 31 1999Feb 4 1999

Other

OtherProceedings of the 1999 Winter Meeting of IEEE Power Engineering Society. Part 1 (of 2)
CityNew York, NY, USA
Period1/31/992/4/99

Fingerprint Dive into the research topics of 'Avoiding the use of negative inductances and resistances in modeling three-winding transformers for computer simulations'. Together they form a unique fingerprint.

Cite this