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Coupled Tank system used for liquid level control is a model of plant thathas usually been used in industries especially chemical process industries.Level control is also very important for mixing reactant process. This surveypaper tries to presents in a systemic way an approach predictive controlstrategy for a system that is similar to the process and is represented by twoliquid tanks. This system of coupled Tank is one of the most commonly availablesystems representing a coupled Multiple Input Multiple Output (MIMO) system.With 2 inputs and 2 outputs, it is the most primitive form of a coupledmultivariable system. Therefor the basic concept of how the coupled tankssystem works is by using a numerical system which it operates with a flowcontrol valve FCV as main control of the level of liquid in one tank or bothtanks. For this paper, MPC algorithm control is used which will be developedbelow. And it is focuses on the design and modelling for coupled tanks system.The steps followed for the design of the controller are: Developing a statespace system model for the coupled tank system then design an MPC controllerfor the developed system model. And study the effect of the disturbance onmeasured level output. Note that the implementation Model Predictive Controlleron flow controller valve in a Coupled Tank liquid level system is one of thenew methods of controlling liquid level.

Model Predictive Control (MPC) Applied To Coupled Tank Liquid Level System