Optimal Tuning of FOPID Parameters with SFL Algorithm for an AVR System

An approach to sustain the Automatic Voltage Regulator (AVR) system voltage at the desired level using the Fractional Order PID controller (FOPID) were described in this article. Numerous optimization techniques are used for the optimal tuning of FOPID parameters with the proposed objective function. The performance of this objective function has been compared with existing ones to validate its effectiveness. Moreover, load disturbance analysis is carried out on the FO-PID controller along with the robustness analysis under uncertainties of exciter parameters.