Effectiveness of FACTS Devices for Power System Stability Enhancement

— The development of the modern power system has led to an increasing complexity in the study of power systems, and also presents new challenges to power system stability, and in particular, to the aspects of transient stability and small-signal stability. Transient stability control plays a significant role in ensuring the stable operation of power systems in the event of large disturbances and faults, and is thus a significant area of research. This paper investigates the improvement of transient stability of a two-area power system, using TCSC which is an effective FACTS (Flexible AC Transmission System) device. Simulations are carried out in Matlab/Simulink environment for the two-area power system model with TCSC to analyze the effects of TCSC on transient stability performance of the system. The performance of TCSC is compared with other FACTS devices such as Static Synchronous Series Compensator (SSSC), and Static Var Compensator (SVC). The simulation results demonstrate the effectiveness and robustness of the proposed TCSC on transient stability improvement of the system.