Van Cutsem, Thierry[Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation >]
Proc. IEEE Porto Power Tech Conference
2001 IEEE Porto Power Tech conference
du 10 septembre 2001 au 13 septembre 2001
[en] Quasi steady-state approximation ; time domain simulation ; voltage security analysis ; voltage stability
[en] This paper proposes a time domain simulation tool combining Full Time Scale (FTS) simulation in the short-term period following a contingency and Quasi Steady-State (QSS) approximation for the long-term phase. A criterion is devised to automatically switch from FTS to QSS simulation as soon as sufficient damping of short-term dynamics is reached. Various comparisons with FTS simulations have been performed on the Hydro-Qn6bec system. The proposed method is shown to combine accuracy of FTS with computational efficiency of QSS. Sensitivity of simulations to load model and the need for updating the whole model with frequency variations are also discussed.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
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