coupled water two tank system

Abstract—Nowadays the simplest and effective solutions to most of the control engineering applications are provided by PID controllers. However PID controllers are poorly tuned in practice with most of the tuning is done manually which is difficult and time consuming. This article comes up with new approaches of Fuzzy-IMC to design of PID controller for coupled water tank system at tank-1. The coupled water two tank system has limitations and it is difficult to control optimally using only PID controllers as the parameters of the system are changing constantly. The liquid level of two coupled water tank system is taken as an object. MATLAB software is used to design Fuzzy-IMC control at tank-1 then analyze the control effect. As a result, it is found that Fuzzy-IMC gives faster rise time, no overshoot, good steady quality with shorter adjusting time and smaller steady state error. Keywords-fuzzy self tuning PID-IMC, Mathematical model of coupled tank systemEvaluationary Algorithm I