DefinePK

Abstract

The extensive growth of industrial demand and domestic demand will make the power system more expensive. The increase of demands will also leads to the increase of the losses from generation to the distribution level. To achieve the flexible operation of the power system from generation to the distribution along with the exponential growth of load, Flexible alternating currents transmission system (FACTS) devices are used. The inclusion of FACTS devices in the power system will make the system more reliable. With the advancements in the power electronic devices the design of facts devices will also take more advantageous position to operate the power system with more reliable. There are many types of FACTS devices such as series, shunt, series-shunt and shunt-shunt among these types shunt –shunt FACTS device plays a major role to operate the power system with less power losses and improved voltage profile. Unified power flow controller (UPFC) is one of the types of shunt-shunt FACTS device. In this paper the incorporation of UPFC within the power system which improves the voltage profile and reducing the losses. The placement of FACTS devices and size of the FACTS device is through analytical and soft computing techniques which are Genetic algorithm (GA), particle swarm optimization (PSO) are used.