Static voltage stability analysis of a power system

Power system stability is an important factor in power system studies. Manny papers discuss of different categories of stability and various analysis methods for utility power system will be presented. In this paper a comparison of static voltage stability index found in the literature is presented. Static voltage stability analysis of power systems is performed based on the line voltage stability indexes such as SVSI, FVSI and VSI. The indexes were formulated and used to identify the critical line outages and sensitive lines in the system.