GSA based PID controller for Load Frequency Control of Multi-Area Hybrid Power System

This paper presents optimal tuning of the Proportional Integral and Derivative (PID) controller for maintaining frequency and tie-line power in a two-area hybrid power system. Gravitational Search Algorithm (GSA) has been used to determine the parameters of proportional-integral-derivative (PID) controller considering the integral time multiple absolute error (ITAE) as the objective function. Hybrid power system comprised of various power plants such as wind power plant, PV system, Diesel Engine Generator (DEG), and Energy Storage System (ESS). The outcomes of the system are depicted in provisions of settling time and overshoots. Further, the compatibility and robustness of the designed system is proved with various operational shifts in the system.