The goal of optimal reactive power dispatch is to make the transmission loss minimal in addition to control of voltage profile such that the voltage deviations at the load buses for various loading conditions. By furnishing Flexible AC Transmission System devices in the transmission system , the power control can be finely achieved. The paper describes Optimal Reactive Power Dispatch for the power loss minimisation using optimal location of Unified Power Flow Controller for loss minimisation. The power flow is first solved by Newton Raphson method without implementing or furnishing Unified Power Flow Controller and then by furnishing them randomly in the IEEE -30 bus system. Unified Power Flow Controller allows control of real and reactive power both in addition to voltage magnitude control at various buses. In this paper, optimal reactive power dispatch is applied using the hybrid GA -PSO. Simulations are performed on IEEE-30 bus test system using MATLAB software package to ensure efficacy of the proposed algorithm. This paper aims at to find the optimum usage of Unified Power Flow Controller which means the finding of the optimal location where their influence would be more useful.

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The main motive of OPRD is to minimise the transmission loss along with control of voltage profile so that the voltage deviations at the load buses for variations in the loading conditions. With the concoction of FACTS devices, the power control can be finely achieved. The paper describes ORPD for the power loss minimisation using optimal concoction of UPFC and the cost of UPFC for ORPD. The power flow is first solved by NR method without concocting UPFC and then with concoction of UPFC randomly placed in the IEEE -30 bus system. The UPFC allows control of real and reactive power both in addition to voltage magnitude control at various buses. In this paper, OPRD is applied using the hybrid GA -PSO. Simulations are performed on IEEE-30 bus test system using MATLAB software package to ensure efficacy of the proposed algorithm. This paper aims at to find the optimum usage of UPFC which means the finding of the optimal location where their influence would be more useful as well as to determine their cost.

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