Multi-Objective Congestion Management in a Deregulated Power systemusing FACTS devices

Congestion management is one of the technical challenges in a Deregulated power system environment. Two types of Methodologies used in congestion Management are non-cost free methods and cost free methods. In this research work congestion is relieved by using cost-free methods considering FACTS Devices such as TCSC(Thyristor controlled series Compensator) and UPFC (Unified Power Flow Controller) device.In this Paper multi-objective functions are considered for congestion management. Those objectives are small signal stability, voltage stability, Real power loss minimization, N-1 Contingency analysis, Transient stability of the power system, Maximize social welfare and determine the locational marginal price(LMP). The optimal location of FACTS devices like TCSC and UPFCare found by using sensitivity based Eigen value analysis and the performance analysis has been worked out for IEEE 14 bus test system using Matlab-PSAT(PowerSystem analysis toolbox) software. The results show that the proposed approach has acapability to improvethe Voltage stability, small signal stability,Loss minimization, Transient stability of the power system network.