Enhancement of ATC Using PSO by Incorporating Generalized Unified Power Flow Controller

In the power industry, the word deregulation means transforming the present form of the power market into another form so that better efficiency can be obtained by drawing private sector investments. The deregulated market is mainly concerned about the transmission pricing, congestion management, and available transfer capability (ATC). Among these interesting challenges, ATC should be the one to be taken care for providing a solid open access transmission service. ATC can be improved either by using new transmission facilities or by using FACTS devices. This paper concerns about the FACTS device application, namely generalized unified power flow controller (GUPFC), to maximize the power transfer for a proposed transaction during normal circumstances. Particle swarm optimization (PSO) is used as an optimization tool for obtaining optimal control settings of GUPFC, so that the audacious job of establishing new transmission system can be prevented for enhancement of ATC. Studies on IEEE 6 bus and IEEE 30 bus test systems are done to illustrate the results obtained in all the cases by the use of the proposed method which is the best.