Comparison of Performance of Fractional Order PID Controller with Conventional Controller for Industrial Applications

Abstract

The controller plays a vital role in any industrial application. There is much research in the field of controllers, and the more flexible and robust one is the Fractional order controller. This point is proved by MATLAB Simulation in this paper. As PID controllers hold almost 90 percent of the control system in industries, simulation is carried out over Fractional order PID controllers. Better control flexibility provided by fractional order PID has made it possible to achieve the desired output in industrial applications in comparison to traditional integer order PID controllers. Thus, in recent years, both scholastic and corporate researchers have focused on fractional order proportional-integral-derivative (FOPID) controllers. In this paper, we have presented the superiority of non-integer order PID (FOPID) over PID using MATLAB simulation using two examples of industrial applications such as liquid level controllers and dc motor speed control. Liquid level control system and dc motor speed control system are first order and second order industrial system respectively simulated in the paper.