Author : K.Hari Krishna, J Satheesh Kumar and Mahaboob Shaik

Control of process parameters is one of the important problems in process industry. The process considered for modeling is spherical tank liquid level system. Control of liquid level in a spherical tank is nonlinear due to the variation in the area of cross section of the level system with change in shape. Nonlinear process control is a difficult task in process Industries. Spherical tank is a nonlinear system due to its variation in the area of cross section. In this project the modeling of Spherical tank system is done. The nonlinear parameters are linearised by using the Taylor-series. The controller is designed using Model Reference Adaptive Controller based on MIT rule. Adaptive Controller for Spherical tank system is simulated in matlab simulink environment.

Keywords: Mrac, Labvew, Nonlinear System, Data Accquistion Sytem,Spherical Tank.

Article published in International Journal of Current  Engineering  and Technology, Vol.2,No.4 (Dec- 2012)