Performance evaluation of DEPSO algorithm on automatic voltage regulator using conventional PID & Fuzzy-PID controller

This paper describes about the design and scrutiny of AVR using three different controllers namely Fuzzy-PID, PID-N & PID. The proposed system is optimized using novel DEPSO algorithm tuned by aforementioned three controllers. Objective function for the AVR system is taken as Integral Time Absolute Error (ITAE). The dynamic response of the system is obtained. Finally it is being observed that FPID proves better in terms of peak overshoot & settling time than the other two. The robustness analysis is by varying time constants by ± 50 %.