New Nonlinear Control Method on a Distillation Column
by
Mehdi Roopaei
Dept. of Electrical Engineering, Shiraz University, Zand Street, Shiraz- IRAN

Iterative learning control methods are represented as powerful tools to control dynamics nowadays. Our new controller based on particular case of iterative learning control is radically different from the presented conventional method, which attempts to stabilize a class of nonlinear systems by satisfying the conditions of Lyapunov Stability Theorem.

Since our algorithm is model based, its robustness should be considered respect to perturbation in the system structure and Lipschitz condition number.

Control of distillation columns has been studied extensively. Since the relative degree of distillation column is not defined at steady-state, it is impossible to linearize the system by feedback and control by feedback linearization method. Our introduced control method has no the mentioned limitation and is able to implement on the systems such as distillation columns which

Date received: December 10, 2006