Automatic Generation Control of Two-Area STThermal Power System using Jaya Algorithm

Abstract

This article present automatic generation control (AGC) of a two area thermal system incorporating solar thermal power plant (STPP) in one of the areas. The performance of the conventional two area system is compared with the proposed system. Similarly, the performances of integral (I), proportional plus integral (PI), and proportional plus integral plus derivative (PID) controller are evaluated in the system with STPP. For optimization of the proposed system, a new optimization technique, i.e. Jaya Algorithm is used for the optimization of secondary controller gains. Examinations uncover that Jaya optimized PID controller’s performance is better as compared to integral and proportional integral control. Better dynamic performances like settling time, overshoot, undershoot is achieved by Jaya algorithm for the proposed system. Further, robustness of the systems are studied by changing all the system parameter from -25% to 25%. Analysis reveals that Jaya algorithm based PID controller gains are quite robust and need not be reset for large variations in system parameters.