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Description
Title: | Globally Optimal Robust Control for Large-Scale Sheet and Film Processes |
Author(s): | VanAntwerp, Jeremy Glen |
Doctoral Committee Chair(s): | Braatz, Richard D. |
Department / Program: | Chemical Engineering |
Discipline: | Chemical Engineering |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Engineering, Chemical |
Abstract: | Sheet and film processes such as polymer film extruders, paper machines, and coating processes are large scale and high speed. Addressing model uncertainty for these processes is critically important because model uncertainty can cause the closed loop system to perform poorly. Here an approach is developed which exploits the structure of generic sheet and film process models to design globally optimal robust controllers for these large scale systems. Theorems are given which reduce a large scale robust control problem for a generic sheet or film process to an equivalent set of independent or coupled low order robust control problems. The reduced order problems are formulated as an optimization with bilinear matrix inequality (BMI) constraints and solved to global optimality via a branch and bound algorithm. The algorithm is applied to a model of a paper machine constructed from published industrial data. The resulting robust control problem is the largest solved to date. |
Issue Date: | 1999 |
Type: | Text |
Language: | English |
Description: | 183 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999. |
URI: | http://hdl.handle.net/2142/82470 |
Other Identifier(s): | (MiAaPQ)AAI9945017 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 1999 |
This item appears in the following Collection(s)
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Dissertations and Theses - Chemical and Biomolecular Engineering
Dissertations and Theses - Chemical and Biomolecular Engineering -
Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois