Saturation in synchronous generators during unbalanced faults

TitleSaturation in synchronous generators during unbalanced faults
Publication TypeConference Paper
Year of Publication2004
AuthorsLouie, K. W., and J. R. Marti
Conference NameElectrical and Computer Engineering, 2004. Canadian Conference on
Pagination819 - 822 Vol.2
Date Publishedmay.
Keywordsair gaps, direct phase-coordinate solution, magnetic saturation effects, nonuniform air gap saturation, phase-domain modelling, salient pole synchronous generator, single phase to ground short circuit, synchronous generators, unbalanced faults

This paper investigates the effects of the non-uniform air gap saturation of a salient pole synchronous generator during a single phase to ground short circuit at its terminal. The accurate representation of magnetic saturation effects in synchronous machines is important when studying their behavior closely. Non-uniform air gap of a synchronous machine can have a strong influence on magnetic saturation during unbalanced faults. Since the direct phase-coordinate solution can easily and accurately represent magnetic saturation, the study was conducted with the salient pole synchronous machine being modeled in the phase-domain.


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