Analysis of soccer league competition algorithm for load frequency control in nonlinear ınterconnected power system

Load Frequency Control (LFC) is a significant tool that provides an equilibrium between generating and consuming real power for efficient operation of power system. In this paper, design and performance analysis of Soccer League Competition (SLC) algorithm is provided for optimal solution of LFC in nonlinear interconnected power systems. SLC algorithm has ability of escaping from local minimums while increasing searching capability accuracy with their operators. PID controller parameters are optimized in order to minimize Integral of Time multiplied Absolute Error (ITAE) as objective function. In order to demonstrate efficiency of SLC, two different nonlinear test systems are employed as case studies. At the first instant of study, two area nonlinear thermal power plants with proper value of Generation Rate Constraints (GRC) is considered as test system. Then, the simulations are employed for three-area unequal power system consist of important system limitations such as GRC, Time Delay (TD) and Governor Dead Band (GDB). Simulation results reveal that better dynamic performance of different test systems is obtained using SLC among the considered algorithms.