Nonlinear model reduction and control of high-purity distillation columns

Aditya Kumar, Prodromos Daoutidis

Research output: Contribution to journalConference article

8 Scopus citations

Abstract

In this article, we address the derivation of reduced-order nonlinear models of high-purity distillation columns with large recycle and internal flowrates. We show through a singular perturbation analysis of the detailed tray-by-tray model that the presence of large internal flowrates leads to a time-scale separation in the column: (i) a fast dynamics corresponding to the individual stages, and (ii) a low-order slow dynamics of the column that governs the overall nonlinear input-output behavior. A description of the low-order slow dynamics of the column is derived and used for the synthesis of a well-conditioned nonlinear feedback controller.

Original languageEnglish (US)
Pages (from-to)2057-2061
Number of pages5
JournalProceedings of the American Control Conference
Volume3
StatePublished - Dec 1 1999
EventProceedings of the 1999 American Control Conference (99ACC) - San Diego, CA, USA
Duration: Jun 2 1999Jun 4 1999

Fingerprint Dive into the research topics of 'Nonlinear model reduction and control of high-purity distillation columns'. Together they form a unique fingerprint.

  • Cite this