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Dynamic Transition Control Structure for a Class of SISO Nonlinear
Systems
Authors:
Debin
Sunč and Karlene A. Hoo*
čAlcatel, Inc. Toronto,
Canada
*Department of Chemical
Engineering, Texas Tech University
ABSTRACT
Most chemical processes are nonlinear in nature and large set point changes or
load disturbances make such processes more challenging for control. Recently a simple transition control structure was introduced so that the
trade-off between nominal performance and robust stability of the model with large uncertainties is converted into the development of several models with
small uncertainties in such a way that the former problem can be solved
satisfactorily. In this work, a modification to that transition control structure is proposed to address nonlinear systems. The
performance of this transition control structure is demonstrated on a nonlinear pH neutralization
process. The simulation results show that the proposed structure has good properties
not only for set point changes but also for disturbance rejection.
Publication Information:
IEEE Trans. on Cont. Sys. Tech., Vol. 7, pp 622--629,
1999.
Corresponding Author: Karlene A. Hoo
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