Modeling of the modified Quadruple-Tank Process

This paper presents Modeling of the Modified Quadruple-Tank Process. The new general form of plant model is developed for illustrating the highly flexible plant structure which can be adjusted to many styles that are used for the propose of giving control system engineers experience with multivariable control system design. In this paper described clearly about structure and physical properties of Modified Quadruple-Tank Process, Mathematical plant modeling, Analysis of plant transfer matrix characteristic, Transformation of general form of plant model to several different styles of water level plant. The value of General form modeling concept for Modified Quadruple-Tank process is ability in transform its transfer matrix to several different styles just only assign the value of inlet and outlet valve ratio. By the several model of transformed Modified Quadruple-Tank, it can be used to teach students in the skills of understanding control limitation due to interactions, model uncertainties, nonminimum phase behavior, and unpredictable time variations, Design decentralized controllers, and understanding their limitations, Implementing decouplers to reduce the effect of interactions, and understanding their limitations.