EMPIRICAL MODELLING AND CONTROLLER DESIGN FOR TITO LEVEL SYSTEM

A model is a mathematical representation of a physical, biological and information about the system. Model allows to make predictions about a system’s behaviour. It is also possible to obtain models of system dynamics from experiments on the process. The empirical process model provides the ability to control and manipulate the variables based upon the envir onment knowledge from the Two Input Two Output interacting level system. In this paper, transfer function of TITO system is obtained via experimental modelling for tanks in interacting mode. Based on the empirical model, controller for the process is des igned. The basic control objective of the TITO system is to maintain a constant level of the liquid in the tanks. The controller designed using the obtained model, gives the satisfactory control of level under servo and regulatory operations in real time.