NDLI: Conservativeness and stability properties in the optimal design of dynamical systems under uncertainty

Content Provider	IEEE Xplore Digital Library
Author	Siyun Wang Baldea, M.
Copyright Year	2014
Description	Author affiliation: McKetta Dept. of Chem. Eng., Univ. of Texas at Austin, Austin, TX, USA (Siyun Wang; Baldea, M.)
Abstract	In this paper, we study the interdependence between the design of a (process) system and the design of the corresponding controller. This relationship is the subject of a “conservativeness” tradeoff between achieving robust stability and nominal performance in the face of uncertainty in operating conditions. We propose a novel strategy for specifying and fulfilling individual dynamic performance criteria for the dynamics of the process and the associated control system, while maintaining the (bounded input-bounded output- BIBO) stability of the closed-loop system. To this end, we implement a switched control law at the design stage, along with additional constraints that enforce BIBO stability. By establishing a link between the switching conditions and the bandwidth of the closed-loop system, we are able to meet a pre-specified level of process conservativeness (e.g., in terms of size or cost) in process design. Second, we extend our previous results concerning identification-based optimization (IBO) to formulate an efficient algorithm for carrying out the optimization calculations under uncertainty without the need to generate computationally costly scenario sets. We illustrate these ideas with a case study concerning the design of an energy-integrated process.
Starting Page	3524
Ending Page	3529
File Size	346521
Page Count	6
File Format	PDF
ISBN	9781479932726
ISSN	07431619
e-ISBN	9781479932740
DOI	10.1109/ACC.2014.6858748
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Optimization Process control Inductors Bandwidth Stability criteria Switches Uncertain systems
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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