COMPARISON OF SVC AND TCSC FOR TRANSIENT STABILITY ENHANCEMENT OF MULTI-MACHINE 14 BUS SYSTEM

Abstract — As the power system is very vast and it is having variety of loads connected to it, the chances of occurring transients are large. Transients occur in a power system due to a fault on transmission lines, loss of a large load or sudden loss of generation. The ability of a power system to maintain synchronism when subjected to a severe transient disturbance is called transient stability. The control of transient stability plays a significant role in ensuring the stable operation of power system when the large disturbances and faults occur in the power system.To improve the transient stability various FACTS devices are used. In this paper Static Var Compensator (SVC) and Thyristor Controlled Series Compensator (TCSC) are used to improve the power system transient stability in a multi- machine 14 bus system using Matlab/Simulink. The comparison of series compensated FACTS device TCSC and shunt compensated FACTS device SVC is also shown