PSSs and SVC Damping Controllers Design to Mitigate Low Frequency Oscillations Problem in a Multi-machine Power System

This paper deals with the design of multi-machine power system stabilizers (PSSs) andStatic var compensator (SVC) using Modified shuffled frog leaping algorithm (MSFLA). Theeffectiveness of the proposed scheme for optimal setting of the PSSs and SVC controllers has beenattended. The PSSs and SVC controllers designing is converted to an optimization problem in whichthe speed deviations between generators are involved. In order to compare the capability of PSS andSVC, they are designed independently once, and in a coordinated mode once again. The proposedmethod is applied on a multi-machine power system under different operating conditions anddisturbances to confirm the effectiveness of it. The results of tuned PSS controller based on MSFLA(MSFLAPSS) and tuned SVC controller based on MSFLA (MSFLA SVC) are compared with theStrength pareto evolutionary algorithm (SPEA) and Particle swarm optimization (PSO) basedoptimized PSS and SVC through some performance to reveal its strong performance. KCI Citation Count: 2