TY - JOUR
T1 - Practical optimal control of fed-batch bioreactors for the waste water treatment
AU - Betancur, Manuel J.
AU - Moreno, Jaime A.
AU - Moreno-Andrade, Iván
AU - Buitrón, Germán
PY - 2006/2
Y1 - 2006/2
N2 - Optimal operation of fed-batch bioreactors is an important practical issue. Since control actions are saturation-limited, the optimal control consists usually of both singular and bang-bang arcs. However, its realization requires good model knowledge and also the measurement of all state variables, requirements rarely satisfied in real applications. In this paper a method is proposed, for a class of bioreactors, to robustly optimize the operation when few measured variables are available and the model is uncertain. Such control law is justified and its properties analysed. The case of a bioreactor for treating toxicants in a waste water treatment plant is thoroughly studied, and experimental results in a lab-scale bioreactor are presented. The method can be also applied for other applications, as in biotechnology.
AB - Optimal operation of fed-batch bioreactors is an important practical issue. Since control actions are saturation-limited, the optimal control consists usually of both singular and bang-bang arcs. However, its realization requires good model knowledge and also the measurement of all state variables, requirements rarely satisfied in real applications. In this paper a method is proposed, for a class of bioreactors, to robustly optimize the operation when few measured variables are available and the model is uncertain. Such control law is justified and its properties analysed. The case of a bioreactor for treating toxicants in a waste water treatment plant is thoroughly studied, and experimental results in a lab-scale bioreactor are presented. The method can be also applied for other applications, as in biotechnology.
KW - Fed-batch bioreactors
KW - Output control
KW - Robust optimal control
KW - Time optimal control
KW - Waste water treatment plants
UR - http://www.scopus.com/inward/record.url?scp=31544472319&partnerID=8YFLogxK
U2 - 10.1002/rnc.1046
DO - 10.1002/rnc.1046
M3 - Artículo en revista científica indexada
AN - SCOPUS:31544472319
SN - 1049-8923
VL - 16
SP - 173
EP - 190
JO - International Journal of Robust and Nonlinear Control
JF - International Journal of Robust and Nonlinear Control
IS - 3
ER -