TY - JOUR
T1 - Dynamic precompensation and output feedback control of integrated process networks
AU - Contou-Carrere, Marie Nathalie
AU - Baldea, Michael
AU - Daoutidis, Prodromos
PY - 2004/7/7
Y1 - 2004/7/7
N2 - In integrated process networks, the presence of large recycle flow rates induces a time scale separation where the individual units evolve in a fast time scale while the overall network evolves in a slow time scale. The slow dynamics of such networks is modeled by a high-index differential-algebraic equation (DAE) system which, in the case of cascaded control configurations, has a control-dependent state space. In this paper, a minimal-order dynamic extension is proposed to obtain a modified DAE system of index 2 with a control-independent state space that can be subsequently used as the basis for output feedback controller design. The application of this method is illustrated for a reactor-condenser network and for a two-point control problem in a high-purity distillation column.
AB - In integrated process networks, the presence of large recycle flow rates induces a time scale separation where the individual units evolve in a fast time scale while the overall network evolves in a slow time scale. The slow dynamics of such networks is modeled by a high-index differential-algebraic equation (DAE) system which, in the case of cascaded control configurations, has a control-dependent state space. In this paper, a minimal-order dynamic extension is proposed to obtain a modified DAE system of index 2 with a control-independent state space that can be subsequently used as the basis for output feedback controller design. The application of this method is illustrated for a reactor-condenser network and for a two-point control problem in a high-purity distillation column.
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U2 - 10.1021/ie0341909
DO - 10.1021/ie0341909
M3 - Article
AN - SCOPUS:3042741873
SN - 0888-5885
VL - 43
SP - 3528
EP - 3538
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 14
ER -