Comparison of Meta Heuristic Optimization Methods in Load Frequency Control

In this paper an optimal load frequency controller for two area interconnected power system is presented to quench the deviations in frequency and tie line power due to different load disturbances. Here, a PI type controller is considered for LFC problem. The parameters of the proposed PI controller are tuned using Particle Swarm Optimization (PSO) method. A two-area electric power system with a wide range of parametric uncertainties is given to illustrate proposed method. To show effectiveness of the proposed method, a PI type controller optimized by Genetic Algorithms (GA) is designed in order to comparison with the proposed PI controller. The simulation results visibly show the validity of PSO-PI controller in comparison with the GA-PI controller.