ANTI-WINDUP DEAD-TIME COMPENSATION FOR STABLE AND INTEGRATIVE FIRST-ORDER DEAD-TIME PROCESSES

BISMARK C. TORRICO; THIAGO  A. LIMA; MAGNO  P. DE ALMEIDA FILHO; FABRÍCIO  G. NOGUEIRA; CLAUSON  S. N. RIOS; RENÉ  D. O. PEREIRA; CELSO  ROGÉRIO SCHMIDLIN JÚNIOR

doi:10.20906/CBA2022/771

BISMARK C. TORRICO Federal University of Ceará
THIAGO A. LIMA Universidade Federal do Ceará
MAGNO P. DE ALMEIDA FILHO Universidade Federal do Ceará
FABRÍCIO G. NOGUEIRA Universidade Federal do Ceará
CLAUSON S. N. RIOS Instituto Federal de Educação, Ciência e Tecnologia do Ceará
RENÉ D. O. PEREIRA Universidade Federal do Ceará
CELSO ROGÉRIO SCHMIDLIN JÚNIOR Universidade Federal do Ceará

DOI: https://doi.org/10.20906/CBA2022/771

Keywords: Dead-time compensator, Actuator saturation, Anti-windup, Time delay systems

Abstract

This work proposes an anti-windup structure for the ltered Smith predictor (FSP) which belongs to a class of dead-time compensators (DTCs). The proposed FSP structure does not use any extra tuning parameter due to the anti-windup characteristic. In addition stability analysis is presented based on describing function method to show robustness properties of the controller. Simulation results are used to compare the obtained solution with other anti-windup DTCs and a constrained model-based predictive controller (MPC). Experimental results on a neonatal intensive care unit are presented in order to shown the usefulness of the proposed controller.