Latin Abstract :
Since most of the chemical processes happen to be nonlinear, nonlinear controllers with feedback linearization have been recently
designed which can directly cancel the nonlinearities and establish a linear input/output map. However, this I/O linearization
algorithm requires the control with stable inversion and state feedback. In the present study, a stable inversion technique for non-
minimum-phase systems is developed under appropriate assumptions, which includes several steps such as ®nding the bounded
control and bounded state trajectories for tracking the desired signal. In this design, the output tracking error as well as the eect of
measurable disturbances can be asymptotically eliminated through generating a feedforward control. Finally, the proposed control
methodology is applied to a chemical process, viz. a Van de Vusse reaction in an isothermal or adiabatic stirred-tank reactor, and
its performance is evaluated.
NaturalLanguageKeyword :
Shooting method , Nonminimum-phase process , Stable inversion technique , Feedforward control scheme
