Identification of the Weakest Buses to Facilitate the Search for Optimal Placement of Var Sources Using “Kessel and Glavitch” Index

Abstract

In this paper, the main objective is to identify the weakest buses in the power system in order to facilitate the search process of optimal placement of reactive power sources using “Kessel and Glavitch” voltage stability index ( $$L_{KG}$$ ). To reach our goal, particle swarm optimization algorithm (PSO) is used and has been applied to the standard IEEE 30-bus for different objectives. The obtained results have been compared to the existing papers reported in the literature. The originality of this work is the use of “Kessel and Glavitch” voltage stability index to provide to the electric power systems research field more accurate and high quality results in the optimal location search of Var supports (such as FACTS devices…etc.) in the power systems.