Coordinated Design of SVC and PSS Controllers Using PSO Algorithm forDamping Power System Oscillations

Abstract

In this paper, the coordinated Static VAR Compensator SVC and Power System Stabilizers PSS devices using for damping of oscillation in the multi-machine power system. Particle Swarm Optimization PSO is used for searching optimized parameters of proposed coordinated controllers. The objective function in this study is based on the minimization of integral of time speed deviation. In PSO, individuals in a new generation are created by update position and velocity of each particle. The effectiveness of this algorithm and the proposed coordinated controllers are examined for the multimachine power system, subjected to a disturbance. The results proposed technique are compared with the same power system without a controller, with the PSS controller, and with coordinated controllers without PSO.