Improvement of Linear Algebra Controllers using Sliding Surface Concepts: Applications to Chemical Processes

MARIA FABIANA SARDELLA; SERRANO, EMANUEL; OSCAR CAMACHO; GUSTAVO SCAGLIA

IEEE LATIN AMERICA TRANSACTIONS

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Año: 2021

1548-0992

This work presents a novel control technique that combines concepts ofSliding Surfacewith a Linear Algebra methodology for controller design. The result is a controller with an improved robustness, while the chattering effect attributed to great uncertainties is avoided. A First Order Plus Dead Time (FOPDT)model of the processis used to develop a controller based on Linear Algebraand the concept of sliding surfaceisused to improve its performance under uncertainties. An interesting feature of this new controller is its ability to follow variable references without overshoot, a highly desirable characteristic for most process systems, and avoids the chattering problem. Results of the control ofchemical processes performed in acontinuous stirred-tank reactor (CSTR)and a laboratory batch reactor using this novel technique are presented. Simulated and experimental results demonstratethe outstanding performance of thisnew control algorithm.