Computing the internal transient voltage response of a transformer with a nonlinear core using gear`s method. Part 2: Verification

Journal Article · Mon May 01 00:00:00 EDT 1995 · IEEE Transactions on Power Systems

DOI:https://doi.org/10.1109/59.387906· OSTI ID:82665

Vakilian, M; Degeneff, R C; Kupferschmid, M ^[1]

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1. Rensselaer Polytechnic Inst., Troy, NY (United States)

An EHV transformer`s insulation structure must be designed to withstand the internal electrical stresses generated during system transients. Computer models are employed for predetermination of these stresses. Part 1 of this paper developed a detailed transformer model and solution method representing the nonlinear, saturable characteristic of the core during transients. The resulting set of stiff nonlinear differential algebraic equations (DAE`s) are solved by application of Gear`s method. Part 2 presents the verification of this methodology. This is accomplished by comparing the computed and measured response of a 765/345/34.5 kV 500MVA autotransformer during energization and transient excitation.

• OSTI ID: 82665
• Report Number(s): CONF-940702-; ISSN 0885-8950; TRN: IM9533%%123
• Journal Information: IEEE Transactions on Power Systems, Vol. 10, Issue 2; Conference: 1994 Institute of Electrical and Electronic Engineers/Power Engineering Society (IEEE/PES) summer meeting, San Francisco, CA (United States), 24-28 Jul 1994; Other Information: PBD: May 1995
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
TRANSFORMERS
RESPONSE FUNCTIONS
POWER SUBSTATIONS
EHV AC SYSTEMS
MATHEMATICAL MODELS