Revealing the Effect of Excitation Cross Coupling on the LFC Performance in Two Area Hybrid Source System

In this paper, the significant effect of excitation coupling with multi area hybrid system (MAHS) for load frequency control (LFC) is analyzed. Initially, MAHS is considered with excitation coupling or automatic voltage regulator (AVR) for analysis purposes. Area-1 of MAHS system is loaded with 10%SLP under the supervision of water cycle algorithm (WCA) based PIDD controller with respect to the minimization of integral square error (ISE) function. By contrasting PI/PID, the effectiveness of PIDD is showcased. To further illustrate its impact, dynamical analysis is performed on the LFC of MAHS for instances of with and without taking the coupling AVR into account.