Optimal Location and Sizing of Capacitor Banks in Distribution Systems Using Grey Wolf Optimization Algorithm

Abstract

AbstractCapacitors are often employed in distribution systems to compensate for reactive power consumed by inductive loads. Indeed, this reactive power injected by capacitors allows reducing power losses and improving power factor and voltage profile in the distribution network and this is what we will discuss in this paper, where we obtained satisfactory and acceptable results, taking into account some limitations. In this paper, we see one of the best optimization methods called Grey Wolf Optimization (GWO) as we will explain how it works and we will apply this method to our problem to determine the optimal location and sizing of multiple capacitors, to reduce active power losses. Simulation results show that GWO based algorithm has accurate convergence to optimal location and size of capacitor banks. The results demonstrate a significant reduction in total power losses and an improvement in the voltage profile of the network, In addition, when compared to other approaches, it provides the best results. The proposed works have been investigated on IEEE 12, 33, and 69 bus distribution test systems to demonstrate the performance and effectiveness of the proposed method.KeywordsGrey Wolf Optimization (GWO)Distribution systemsCapacitors bankOptimal location and sizeActive power losses reduction