HPSO algorithm to design power system stabilizer in multi-machine power system

In this article, a new evolutionary algorithm presented in order to optimally design stabilizers of multi-machine power system. This article utilizes Hybrid Particle Swarm Optimization (HPSO) technique to search for optimized amounts of power system stabilizer (PSS). The strength of presented method to create initial amounts was proved. Efficiency and capability of HPSOPSS was tested under different turbulences and loading modes for different multi-machine systems. Data analysis and results of nonlinear simulations, delineated the usefulness of HPSOPSS in damping local and in-area frequency modes; and this coordination has a remarkable effect on execution of loading modes and arrangement of power system. Totally, potential and priority of the presented method in proportion to other common methods was proved.