Design of Robust Low-order Controllers for Complex Processes: a Case Study on Reactive Distillation in a Medium-scale Pilot Plant
| Authors: | Völker Marten, Universität Dortmund, Germany
Sonntag Christian, Universität Dortmund, Germany
Engell Sebastian, Universität Dortmund, Germany |
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| Topic: | 5.4 Large Scale Complex Systems |
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| Session: | Large Scale Complex Systems - Applications |
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| Keywords: | reactive distillations, control of complex processes, robustcontrol, multiobjective control, controller reduction |
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Abstract
This paper deals with robust low-order controller design for amedium-scale pilot reactive distillation column. In the firststep, the attainable control performance for a linear model of thecolumn that is identified from experiments is computed. In thisstep, actuator limitations and model uncertainty resulting from apriori knowledge and confidence intervals provided by theidentification are considered. In the second step, the result ofthe optimal control performance calculation is employed in afrequency approximation scheme to generate a low-order controller.Finally, the synthesised controller is validated at the reactivedistillation column.
