Title :
MIMO quantitative robust control of a wastewater treatment plant for biological removal of nitrogen and phosphorus
Author :
Garcia-Sanz, M. ; Eguinoa, I. ; Gil-Martinez, M. ; Irizar, I. ; Ayesa, E.
Author_Institution :
Autom. Control & Comput. Sci. Dept., Public Univ. of Navarra, Pamplona
Abstract :
This paper applies a recent full-matrix multi- input-multi-output QFT controller design methodology to simultaneously regulate nitrogen and phosphorus concentrations in the effluent of a wastewater treatment plant (WWTP) according to environmental standard policies. The robust controller is based on two terms: a non-diagonal pre- compensator for decoupling and a diagonal controller for robust performance and stability. Simulation results show the benefits of the control strategy for WWTP-type complex processes with large channel-interaction and uncertainty.
Keywords :
MIMO systems; compensation; control system synthesis; feedback; matrix algebra; nitrogen compounds; phosphorus compounds; robust control; wastewater treatment; MIMO quantitative robust control; decoupling; diagonal controller; environmental standard policy; full-matrix multiinput-multioutput QFT controller design; nitrogen-phosphorus biological removal; nondiagonal precompensator; stability; wastewater treatment plant; Application specific processors; Automatic control; Effluents; MIMO; Nitrogen; Plants (biology); Robust control; Robust stability; Uncertainty; Wastewater treatment; Quantitative Feedback Theory (QFT); Robust MIMO control; Wastewater treatment plants;
Conference_Titel :
Control and Automation, 2008 16th Mediterranean Conference on
Conference_Location :
Ajaccio
Print_ISBN :
978-1-4244-2504-4
Electronic_ISBN :
978-1-4244-2505-1
DOI :
10.1109/MED.2008.4602045
