Design Of Damping Lead Lag (pss) For Smib Power System Using Particle Swarm Optimization Algorithm

This paper presents PSS (Power system stabilizer) design using Particle Swarm Optimization PSO method. The design is considered for single-machine power systems. The main motivation for this design is to damp electromechanical oscillations, and stabilize low-frequency oscillations of power systems. Firstly, the problem is formulated to optimize a composite set of objectives. The lead-lag PSS parameters are tuned; the problem isconverted to an optimization problem which is solved by the PSO algorithm, to reach optimal global stability. Finally, the proposed PSO based PSSs is tested on a single-machine power system (SMIB) under different operating conditions and disturbances and different loads.