Title :
Control of a pH process using variable structure regulator and Smith predictor
Author :
Resende, P. ; Zarate-Galvez, L.E.
Author_Institution :
Dept. of Electron. Eng., Minas Gerais Federal Univ., Belo Horizonte, Brazil
fDate :
28 Oct-1 Nov 1991
Abstract :
The authors present a variable structure sliding mode control for the pH regulation problem. A variable structure controller is designed considering the nonlinearities and high uncertainties of the pH process characteristics. A Smith predictor is utilized to account for the pH process time delay. Simulation results show that satisfactory performance is obtained even though the pH process has nonlinear characteristics, time delay, and model uncertainties
Keywords :
control nonlinearities; control system synthesis; delays; filtering and prediction theory; pH control; variable structure systems; Smith predictor; control system synthesis; nonlinearities; pH process control; sliding mode control; time delay; uncertainties; variable structure controller; Control nonlinearities; Delay effects; Electric variables control; Equations; Low pass filters; Regulators; Sliding mode control; Uncertainty; Valves; Wastewater treatment;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239017
