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Design and Implementation of Multivariable Quadruple tank system with different PID tuning control techniques

This paper analyses the performance of Quadruple tank system with different controllers. The minimum and non-minimum phase behavior of the quadruple tank is controlled by the selection of flow ratio of the system. Change in phase from minimum to non-minimum affects the system performance and vice versa. This paper mainly focuses on the design of optimal controller to improve the system performance. An experimental study on different controllers has been implemented and the result is analyzed. The system performance with a PID controller, fuzzy PID controller and Model predictive controller are analyzed. The simulation result shows that the MPC controller provides the optimal solution for a quadruple tank system.