PID ADAPTIVE-CONTROL A NONISOTHERMAL CONTINUOUS STIRRED-TANK REACTOR

This paper presents a digital PID adaptive controller derived within t he delta operator formulation. The main features of this controller ar e suitable tracking capability, parameter adaptation alertness, numeri cal robustness and convergence of the performances to those of the und erlying analog PID controller. Realistic simulations involving a physi cal model of an exothermic continuous stirred tank reactor (CSTR) are presented to show the performances of the proposed PID adaptive contro ller with respect to a tightly tuned standard PLD controller.