Probabilistic constrained load flow for optimizing generator reactive power resources

Citation
Nd. Hatziargyriou et Ts. Karakatsanis, Probabilistic constrained load flow for optimizing generator reactive power resources, IEEE POW SY, 15(2), 2000, pp. 687-693
Citations number
9
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON POWER SYSTEMS
ISSN journal
08858950 → ACNP
Volume
15
Issue
2
Year of publication
2000
Pages
687 - 693
Database
ISI
SICI code
0885-8950(200005)15:2<687:PCLFFO>2.0.ZU;2-P
Abstract
The generator reactive capability curve normally used in operation planning overestimates the reactive supply or absorption capabilities of the unit b ecause it does not consider the operating conditions of the generator plant and of the electric power system. These are determined by the tap position s on the generator step-up and on the auxiliary unit transformer. This pape r presents the application of probabilistic constrained load flow to optima l selection of these taps. It is shown that the technique proposed provides tap settings satisfying the reactive requirements for a whole range of ope rating conditions taking into account their probabilities of occurrence.