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Sliding mode predictive control for chemical process with time delay

Authors:Garcia-Gabin Winston, Universidad de Los Andes, Venezuela
Zambrano Darine, Universidad de Los Andes, Venezuela
Camacho Eduardo F., Universidad de Sevilla, Spain
Topic:6.1 Chemical Process Control
Session:Process Optimization and Predictive Control
Keywords: Process control, Predictive control, Sliding-mode control, Time delay, Robustness

Abstract

A design of a novel model predictive controller is presented. Theproposed Sliding Mode Predictive Control (SMPC) algorithm combinesthe design technique of Sliding-Mode Control (SMC) with Modelbased Predictive Control (MPC). The SMPC showed a considerablerobustness improvement with respect to MPC in the presence of timedelay, and showed an enhanced ability to handle set point changesin a nonlinear process. Its robustness was evaluated using arobustness plot, its performance was judged using a single inputsingle output nonlinear mixing tank process with variable timedelay. Copyright 2005 IFAC.