An interactive software tool to teach ratio control

In this paper we present a software tool, developed using Matlab, that serves as an instructional aid for learning the design of ratio control systems for industrial processes. The tool considers both the series and the parallel control structure and enables the user to tune the parameters of the two PID controllers, as well as subsequently evaluating the impacts of these alterations. The evaluation of the set-point and load disturbance step response, along with the filtering of measurement noise, can be conducted. It is thought that this software has the potential to be effectively utilized in process control courses, facilitating a deeper comprehension of the practical application of theoretical concepts given by the instructor. An illustrative example is given in this context.