Title :
A study on controller design strategies for TITO plant
Author :
Samsudin, S.I. ; Rahmat, M.F. ; Wahab, N.A. ; Muhammad, M. C. Razali ; Gaya, Sani
Author_Institution :
Dept. of Ind. Electron., Univ. Teknikal Malaysia Melaka, Durian Tunggal, Malaysia
Abstract :
The work studies on the performance of diagonal and multivariable PI control strategies applied to two-input two-output (TITO) nonlinear wastewater treatment plant (WWTP). WWTP is highly known with the variation and uncertainty of the parameters, making them a challenge to be controlled. Thus, simpler control strategies are always demanded. An adaptive interaction algorithm is used in tuning the diagonal PI controller while Davison and Penttinen-Koivo methods are applied in multivariable PI controller. It was observed that the simulated diagonal PI controller perform well in tracking the substrate and dissolve oxygen concentrations while the disturbances are well compensated by multivariable PI controllers.
Keywords :
MIMO systems; PI control; control system synthesis; nonlinear control systems; oxygen; uncertain systems; wastewater treatment; Davison method; Penttinen-Koivo method; TITO plant; WWTP; adaptive interaction algorithm; controller design strategy; diagonal PI control strategy; diagonal PI controller tuning; multivariable PI control strategy; oxygen concentration dissolving; parameter uncertainty; parameter variation; two-input two-output nonlinear wastewater treatment plant; Control systems; MIMO; Process control; Sludge treatment; Substrates; Tuning; activated sludge process; diagonal PI; multivariable PI;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2013 8th IEEE Conference on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4673-6320-4
DOI :
10.1109/ICIEA.2013.6566398
