Control of integrated process networks-A multi-time scale perspective

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Abstract

In this paper, we analyze the dynamics of integrated process networks featuring large recycle streams and small purge streams. We consider a prototype network comprising of a reactor and a condenser, and, within the framework of singular perturbations, we establish that the dynamics of such a network exhibits three time scales. We describe a model reduction procedure which leads to an explicit nonlinear description of the dynamics in each time scale, and we outline a controller synthesis procedure that rigorously accounts for this time-scale multiplicity.

Original languageEnglish (US)
Pages (from-to)973-978
Number of pages6
JournalComputer Aided Chemical Engineering
Volume20
Issue numberC
DOIs
StatePublished - Dec 1 2005

Keywords

  • model reduction
  • plant-wide control
  • singular perturbations

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