Diseño, simulación y comparación de tres controladores predictivos: control predictivo generalizado, control por matriz dinámica y predictor de Smith robusto, aplicados a un reactor de agitación continua y un tanque de mezclado con retardo

Abstract

This work presents the design, simulation and comparison of three predictive control techniques: Generalized Predictive Control, Dynamic Matrix Control and Robust Smith Predictor applied to CSTR Reactor with fixed delay and to a Mixing Tank with variable delay. The design of the controllers is based on obtaining the approximate linear model of a first-order system with delay (FOPDT) and the discrete model of the previously mentioned non-linear plants. The control schemes designed were submitted to tracking (reference changes) and regulation (disturbances) tests. In which the performance of the three control techniques was evaluated and compared based on the ISE and TVu indexes. In addition, in computer software Matlab, an interface with friendly environment was made for the user, in which the responses of the plants and their corresponding control actions were presented with the variation of the tuning parameters of each of the controllers.