ON THE DYNAMIC PROPERTIES OF THE EXTENSIVE VARIABLE CONTROL STRUCTURES |
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Authors: | Apostolos Georgiou Louis Caston Christos Georgakis |
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Affiliation: |
a Department of Chemical Engineering and Chemical Process Modeling and Control Research Center, Lehigh University, Bethlehem, PA |
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Abstract: | The purpose of this paper is to investigate the dynamic properties of controller structures synthesized using extensive thermodynamic variables of a process. Several state-space and frequency domain multivariable techniques, including INA, and Modal Interaction Analysis, are used in order to evaluate the dynamic properties of these control structures. These structures show zero steady state interaction and minimal dynamic interaction for all processes examined. Dynamic simulation of several application examples, including distillation columns and a network of two stirred tank heaters in series, shows that the loops in these structures can also be tuned with minimum effort. Comparison of the proposed structures, with the conventional parallel single-input single-output control structures, shows the advantages of the proposed method. |
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Keywords: | Interaction Decoupling Multivariale control Distillation Control Simulation Process control |
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