Adequacy assessment of composite system based on static voltage stability limit using ANN

A new methodology has been developed for determining probability of failure accounting static voltage stability limits under various network and generation capacity states. These failure probabilities have been obtained for various total systems loading condition. Corrective capabilities under various system states have been accounted via an optimization formulation. Results so obtained have been used to train a multilayer feed forward network. Hence probability of failure can be calculated on-line. The algorithm has been implemented on 6-bus, 7-line test system.