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On the integrity of uncertain systems with structured uncertainty

Firouzbahrami, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1021/ie201174b
  3. Abstract:
  4. The integrity of decentralized controllers with integral action, with respect to loop failures, has been researched relatively well. Important results have been found, with respect to the Relative Gain Array (RGA). However, less has been done on the treatment of the integrity of uncertain systems. This paper builds on the more-recent progress on the analysis of uncertain systems and presents new conditions for the integrity of closed-loop systems. The developed Integral Controllable (IC), Integral Controllable with Integrity (ICI), and Decentralized Integral Controllability (DIC) conditions are derived using a model of uncertainties that allows both unstructured and structured independent uncertainties to be studied. A convex framework for the evaluation of the conditions is also presented. The utility of the conditions are illustrated through application to existing examples from the literature
  5. Keywords:
  6. Decentralized controller ; Integral action ; Model of uncertainty ; Relative gain array ; Structured uncertainties ; Chemistry ; Engineering research ; Uncertain systems
  7. Source: Industrial and Engineering Chemistry Research ; Volume 50, Issue 24 , 2011 , Pages 13940-13946 ; 08885885 (ISSN)
  8. URL: http://pubs.acs.org/doi/abs/10.1021/ie201174b