TY - JOUR T1 - Damping Improvement by Facts Devices: A Comparison Between STATCOM, SSSC and UPFC AU - , N. Senthil Kumar AU - , R. Srinivasan AU - , M. Abdullah Khan JO - International Journal of Electrical and Power Engineering VL - 2 IS - 3 SP - 171 EP - 178 PY - 2008 DA - 2001/08/19 SN - 1990-7958 DO - ijepe.2008.171.178 UR - https://makhillpublications.co/view-article.php?doi=ijepe.2008.171.178 KW - Power system oscillations KW -STATCOM KW -SSSC KW -UPFC KW -SIMULINK AB - This study discusses and compares different control techniques for damping undesirable electromechancial oscillations in power systems by using Series /Shunt FACTS controllers. Static Compensators (STATCOM) Static Synchronous Series Compensators and Unified Power Flow Controllers (UPFC). The following disturbances are simulated on a Single Machine Infinite Bus System and the rotor angle/rotor speed deviation response is studied with and without the effect of FACTS controllers: Step change in turbine input and a three-phase fault on the line. The dynamic model of the FACTS controllers has been derived from the circuit theory fundamentals and the simulation results provide useful information on the transient rating of the converter based FACTS controllers. MATLAB/SIMULINK is used for running the dynamic simulations. ER -