Localization and Sizing of UPFC: A Hybrid Optimization Algorithm for Solving Reactive Power Dispatch

Abstract

In this paper, a method to determine the multi-objective ORPD issue in an unbalanced bus system is presented. In contrast to conventional ORPD issue, the proposed method attains the improvement in voltage enhancement, maximization in loadability, enhancement in ATC, minimization of loss under the unbalanced criteria. In order to determine the optimal positioning and sizing of the UPFC, the ORPD is accomplished by utilizing a hybrid CSA and GWO algorithm. Finally, the simulation outcomes on the benchmark IEEE test bus systems under unbalanced conditions reveal the ORPD performance of the proposed method against the conventional methods. Even under the overloading circumstances, the proposed method has shown its performance in retaining an optimal trade-off between the multiple objectives. Here, the analysis also comprises an examination of the sensitivity of the method over the overloading conditions of the bus system. At last, the simulation outcomes assure that the proposed method is better than the traditional methods such as GWO and CSA.