Identification and control of processes with periodic operations or disturbances

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Periodically time-varying (PTV) systems are commonly used to model natural and forced periodic phenomena encountered in many engineering applications. We propose an approach in which the subspace identification method is used to identify the "lifted" form of a PTV system. Then, the identified lifted system is reformulated as a PTV system in an augmented form for the design of a PTV Kalman filter and a PTV linear quadratic regulator that can eliminate periodic error without offset. We touch upon some important practical issues of identifying a lifted system and also of designing an optimal controller with the identified model. We illustrate the application of the proposed approach through two examples involving a polyamine reactor and a distillation column.
Publisher
AMER CHEMICAL SOC
Issue Date
2003-04
Language
English
Article Type
Article
Keywords

MOVING-BED CHROMATOGRAPHY; DISCRETE-TIME-SYSTEMS; REPETITIVE CONTROL; REALIZATIONS; ALGORITHMS; MODELS; ZEROS

Citation

INDUSTRIAL ENGINEERING CHEMISTRY RESEARCH, v.42, no.9, pp.1938 - 1947

ISSN
0888-5885
DOI
10.1021/ie020313y
URI
http://hdl.handle.net/10203/85916
Appears in Collection
CBE-Journal Papers(저널논문)
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