Fractional order proportional integral dertivative dased swarm optimization for three-tank system

Abstract

The control of a liquid level in the most of the industrial process gains high importance, par- ticularly in petrochemical, food processing and phar- maceutical. This paper deals with the designing of a fractional-order proportional-integral-derivative (FOPID) technique to managing liquid level in a three- tank system. To get the best performance from the FOPID controller, its adjustable parameters were fine- tuned using the crow search algorithm (CSA) and mine blast algorithm (MBA). The effectiveness of the pro- posed optimized FOPID controller was further exam- ined with standalone PID controller based on computer simulation using MATALB. Based on results of the time-based metrics like overshoot and how quickly the system settles, the FOPID-CSA controller outperforms the FOPID-MBA, the PID-CSA and the PID-MBA controllers. Moreover, the results obtained from robust- ness analysis showed that the FOPID-CSA controller is more robust under disturbances.