Abstract:
The level control of non-linear tanks (conical, spherical, etc) is the immense challenge in process control and it cannot be effectively controlled by means of conventional linear P+I+D controller. Hence an attempt is made in this paper as Internal Model Based PID controller design for conical tank level control. For each stable operating point, a first order process model was identified using process reaction curve method. The real time implementation is done in simulink using MATLAB. The experimental results shows that proposed control scheme have good set point tracking and disturbance rejection capability.

Keywords: IMC, PID, CONICALTANK, LEVEL, MATLAB