A COMPARISON OF DESIGN AND OPERATION OF SINGLE AND COORDINATED PSS CONTROLLERS WITH SVC AND STATCOM FOR DAMPING POWER SYSTEM OSCILLATIONS

To damp power system oscillations, the commonly-used method is to arrange multiple decentralized stabilizers, such as Power System Stabilizer (PSS) and Flexible AC Transmission Systems (FACTS) controllers. This paper is mainly concerned with comparison of design and operation of single and coordinated Power System Stabilizer (PSS) controllers with Static VAR Compensator (SVC) and Static Synchronous Compensator (STATCOM) for improvement power system stability using Genetic Algorithm (GA). The eigenvalue analysis and the nonlinear simulation results are used for small signal stability of Single Machine Infinite Bus (SMIB) system installed with PSS and FACTS controllers. It is worth mentioning that the PSS and FACTS-based controllers help in damping power system oscillations after a disturbance so as to improve the power system stability. Finally, this analysis results reveal that coordinated design of PSS and STATCOM-based controllers has significant performance to promote the damping power system oscillations compared with SVC-Based controllers.