Fast nodal assessment of static voltage stability including contingency analysis

A nodal static voltage stability evaluation analytical tool for electric po wer systems is presented. The method is based on a straightforward physical characterization of the voltage stability phenomena. Emphasis is given to numerical calculation aspects leading to computational efficiency, necessar y when leading with real life networks and contingency analysis. The method was able to detect real voltage stability problems in the Brazilian system , which substantiates its applicability and adequacy. (C) 1999 Elsevier Sci ence S.A. All rights reserved.