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

Content Provider	IEEE Xplore Digital Library
Author	Holenarsipur, P.S.S. Mohan, N. Albertson, V.D. Cristofersen, J.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA (Holenarsipur, P.S.S.; Mohan, N.; Albertson, V.D.)
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.
Starting Page	1025
Ending Page	1030
File Size	514255
Page Count	6
File Format	PDF
ISBN	0780348931
DOI	10.1109/PESW.1999.747338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-01-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transformers Computer simulation Power system modeling Power system simulation Inductance Steady-state Time domain analysis Computational modeling Circuit simulation Equivalent circuits
Content Type	Text
Resource Type	Article

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