EFFECT OF EXTERNAL LINEAR MODEL’S ORDER ON ADAPTIVE CONTROL OF CSTR

摘要

This paper shows simulation results of the adaptiverncontrol with different types of External Linear Modelsrn(ELM) used in adaptive control as a representation of thernnonlinear system. The controlled nonlinear system wasrnContinuous Stirred Tank Reactor (CSTR) withrnexothermic reaction and cooling in the jacket. Thernmathematical model of this plant is described by the set ofrnordinary differential equations (ODE) which means thatrnthe system is considered as a lumped-parameters system.rnAdaptive approach with the recursive identification of thernELM’s parameters used here produces good controlrnresults even when the system has negative controlrnproperties. The polynomial synthesis and the poleplacementrnmethod applied for the controller designrnsatisfies basic control requirements such as stability,rnreference tracking and disturbance attenuation which wasrnalso proofed.