Development of Modelling of Couple Tank System CE 105 Using ARX Method

Abstract

Liquid level control is a process control in tank systems and widely used in industries processes application. A CE105 coupled tank apparatus consists of two liquid tanks, where the tank is used to accept incoming liquid while keeping the liquid variation at the desired output level to supply outflow of liquid at a constant speed. Each tank has a scale level that proportional to the signals level sensor and it has a variable speed pump forces liquid into the first tank. This research proposed a development of ARX model for coupled tank system. The Nonlinear Autoregressive with Exogenous (ARX) model structure was chosen to represent the system dynamics for simulation studies. The nonlinear ARX model was successful to describe the behaviour and dynamic of the system. Simulation with the model has been successfully modelled.