Optimal siting, sizing, and parameter tuning of STATCOM and SSSC using MPSO and remote coordination of the FACTS for oscillation damping of power systems

Abstract

In electromechanical oscillation damping within power system, power system stabilizers (PSSs) are oftendeployed. However, a PSS is less effective in damping interarea oscillation and is limited by changes in networkconfiguration due to weak tie-lines and load variations. Consequently, this paper presents a wide-area coordinationapproach that damps interarea oscillations using FACTS devices and phasor measurement units. We selected a staticsynchronous compensator (STATCOM) and static series synchronous compensator (SSSC) for realistic power systeminterarea oscillation damping. The performance of the coordinated FACTS installed in a power system depends on theirsuitable locations, sizes, tuned parameters, and remote input signal selection. Hence, we formulated a multiobjectiveproblem to provide the STATCOM and SSSC’s optimal solutions using multiobjective particle swarm optimization. Inaddition, we employed a participation factor to select suitable generator speed deviations as the wide area stabilizingsignal. The proposed approach was tested on different configurations of the Kundur 2-area 4-machine test system withinMATLAB and Psat environments. The outcome of the nonlinear simulation proved that the multimachine power systemstability was enhanced.