Overcoming performance limitations in feedback control posed by constraints, uncertainty, and unstable inverse dynamics /
In order to perform engineering design efficiently, an engineer must have some idea of the design limitations. Knowing the limitations of a given design problem places emphasis on the issues of most importance and can show how designs which do not consider limitations fail. In the design of multiv...
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| Format: | Thesis Book |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
2000.
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| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=731981351&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | In order to perform engineering design efficiently, an engineer must have some idea of the design limitations. Knowing the limitations of a given design problem places emphasis on the issues of most importance and can show how designs which do not consider limitations fail. In the design of multivariable feedback control systems, several of the most important limitations are manipulated variable constraints, model uncertainty, and unstable inverse dynamics. Model predictive control provides an excellent framework for the examination of constrained, optimal control. Using model predictive control, and a new form of output constraints cast as chance constraints, the issue of robustly satisfying output constraints under uncertainty can be resolved. The analysis of the performance limitations posed by unstable inverse dynamics is more suitably examined in the context of internal model control. Using this basis, the utility of nonsquare control, control using differing numbers of inputs and outputs, is readily seen and can be exploited. Design strategies for robust, nonsquare controllers are developed which eliminate the effects of unstable inverse dynamics in both linear and nonlinear systems. |
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| Item Description: | Vita. "Major Subject: Chemical Engineering". |
| Physical Description: | xiii, 163 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilm Inc. |
| Bibliography: | Includes bibliographical references (leaves 143-149). |