LION OPTIMIZATION ALGORITHM FOR LOAD FREQUENCY CONTROL OF MULTI-AREA INTERCONNECTED POWER SYSTEMS WITH NON-LINEARITIES

Abstract: This work introduces the Lion Optimization Algorithm, a novel nature-inspired metaheuristic algorithm designed for complex optimization problems. Motivated by the unique social behaviors and cooperative hunting strategies of lions, LOA offers a population-based approach. The algorithm's effectiveness is demonstrated through its application to a three-area interconnected power system incorporating non-linearities such as Governor Dead Band and Generation Rate Constraint. A time-domain objective function, optimized using LOA, tunes the parameters of a PI controller for Load Frequency Control. Simulation results across various loading conditions reveal that LOA-based controllers achieve superior performance compared to conventional PI controllers, particularly in settling times and other relevant performance indices. Keywords: Load Frequency Control (LFC); Multi-area power system; Proportional-Integral (PI) controller; Lion Optimization Algorithm (LOA)