Simultaneous(Simulation) Design of the PSS Parameters and SVC Control System by the VURPSO Algorithm to Increase the Stability of the Power System

In this paper, the multi-machine power system is simulated and in addition, VURPSO optimization algorithm is used to optimize the parameters of the simultaneous controllers of the Static Var Compensator (SVC) and power system stabilizer (PSS) to increase the power system stability. By SVC, the transmittable power in the steady state can be increased and the voltage profile can be controlled along the line. The main role of the PSS is to damp the generator oscillations controlling its stimulation by the use of auxiliary supplementary signals. If it is assumed that a three phase short circuit fault with the ground has occurred in a four-machine power system, SVC and PSS simultaneous controllers are used to damp the oscillations and stabilize the system.