Self-tuning fuzzy fractional-order PI controller: Design and application in steam distillation process

Fractional-order PID control is currently an emerging control technology. Its overall performance had been proven to be better than PID in many applications. Currently, researchers are looking towards combining the fractional-order PID with fuzzy to make it become a self-tuning fractional-order PID. This research had successfully developed a self-tuning fuzzy PI that has been evaluated on a steam distillation process. The proposed fuzzy structure had produced better performance compared to PI, fractional-order PI and self-tuning fuzzy PI.