Improved Grey Wolf Optimizer Algorithm for PIDF Controller for AGC of Multi-Area Multi-Source Interconnected Power System

Improved Grey Wolf Optimizer (I-GWO) is a new explored to develop an algorithm for solving engineering issues. Recently, the I-GWO is very popular among researchers due to its effectiveness in solving complex engineering problems especially that related to power systems. This paper proposes I-GWO based automatic generation control for elimination of the frequency and power interchange deviation in an interconnected power system. A two area six-unit multi-source system equipped with PID and PID with derivative filter (PIDF) controllers is taken in consideration. I-GWO is used to seek for optimal parameters of controllers. The performance of the suggested optimal controller is compared and evaluated with that of the conventional PID controller in order to demonstrate the superior efficiency of the suggested I-GWO in PIDF controller tuning. The simulation results prove that the optimal I-GWO based controller provides better performance as compared with the conventional controller.