A Design For Robust Power System Stabilizer By Means Of H∞ Control And Particleswarm Optimization Method

摘要

This paper proposes two types of PSS design methods that take into account robustness for comparably large power systems. The first one is a design method based on H∞ control theory and the second one is a parameter determination method for a standard PSS by using Particle Swarm Optimization (PSO). In order to deal with large-scale systems, a reduced model is developed to get the target system which preserves major oscillation modes only. The major oscillation modes are selected by using the residue concept, and the PSS is designed based on the target system. In order to verify effectiveness, the proposed methods are compared with the other previously proposed method based on a Genetic Algorithm (GA) through many numerical simulations.