Abstract/Details

Plantwide control of uncertain plants


2002 2002

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Abstract (summary)

Plantwide control refers to the control of entire plants, consisting of many interconnected unit operations. Synthesizing a plantwide control system requires evaluating numerous alternatives involving controlled variables, control structures, controller designs and tunings, etc. A hierarchical procedure for systematically synthesizing a plantwide control has been proposed by Zheng et al. [82]. In this procedure, the plantwide control problem is decomposed into six steps along which decisions are made based on economics. While many tools (e.g., a short-cut method for controlled variable selection, quantification of dynamic operability, etc.) have been developed by these authors to ease the implementation of the procedure on industrial processes, more tools need to be developed. For example, we need to develop systematic procedures for ensuring feasibility of the control structures, for selecting primary and secondary controlled variables and for designing controllers for systems with recycles. Furthermore, model uncertainty, which is important practically, needs to be taken into account to make these tools useful. The goal of this thesis is to accomplish these tasks. To this end, we address how model uncertainty affects the steady-state as well as the dynamic control structure.

Indexing (details)


Subject
Chemical engineering;
Systems design
Classification
0542: Chemical engineering
0790: Systems design
Identifier / keyword
Applied sciences; Dynamic control; Plant-wide control; Uncertain
Title
Plantwide control of uncertain plants
Author
Chodavarapu, Surya Kiran Lakshmi
Number of pages
98
Publication year
2002
Degree date
2002
School code
0118
Source
DAI-B 63/06, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780493714806, 0493714804
Advisor
Zheng, Alex Z. Q.
University/institution
University of Massachusetts Amherst
University location
United States -- Massachusetts
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3056210
ProQuest document ID
275612321
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/275612321
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