Performance analysis of ALO tuned FOPID controller for AGC of a three area power system

This paper proposes a new algorithm called Antlion optimizer algorithm (ALO) to solve the automatic generation control (AGC) problem of an interconnected three-area system. The ALO is implemented to find the optimized values of the gains of the PID controller as well as FOPID controller in a three area interconnected system. ALO is applied to optimize ITAE index in time domain analysis. The simulation results show the effectiveness of the ALO optimized FOPID controllers in comparison to ALO optimized PID controllers. From the analysis It is shown that transient performance of ALO optimized FOPID controllers is superior than the ALO optimized PID controllers in terms of faster convergence. The settling time, maximum peak overshoot and maximum peak undershoot of the deviations in tie-line power and frequency are much better in ALO optimized FOPID controllers as compared to the PID controllers. The dynamic response of the controller is analyzed by choosing 1% of step load change in load demand .