A UPFC based Optimal Power Flow of an Integrated Power System

The geopolitical landscape of the world has made it abundantly evident how important energy resources are and how best to use them on Earth. The ultimate consumers of electrical energy benefit from an additional benefit of lower costs due to resource optimization. In this paper a multi-objective optimal power flow (OPF) for an integrated power system in the presence of FACTS devices has been proposed. The selection of the multi-objective function makes this paper unique. Minimizing Negative Social Welfare (NSW) voltage variation and power loss are part of the objective function. Lower loss and NSW's guarantee of lower electricity costs per unit at the customer's end result in higher customer satisfaction. The Unified Power Flow Controller (UPFC) is the FACTS device utilised to solve the issue. An IEEE 57 bus system has been used to test the hypothesis. The objective function has been optimized by applying the Mouth Flame Optimisation Algorithm.