Applying the artificial fish swarm algorithm for the co-ordinated design of PSSs in a real large-scale power system

The paper applies the method of the artificial fish swarm algorithm for the coordinated design of the PSSs in a real large-scale power system, in order to increase the damping of power system oscillations. The AFSA method is briefly introduced in the paper firstly. Then the optimized parameters of the PSSs are obtained by solving the objective optimization problem by using the AFSA method. Finally, an example, which is a real large-scale power system, is presented to demonstrate that the optimized PSSs yield a much better performance in comparison with the original settings of PSSs. The optimized PSSs are much effective to damp the power system oscillations and enhance the power system small-signal stability.