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Robustness Guarante...
Robustness Guarantees for Linear Control Designs with an Estimated Nonlinear Model Error Model
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- Glad, Torkel, 1947- (author)
- Linköpings universitet,Reglerteknik,Tekniska högskolan
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- Helmersson, Anders, 1957- (author)
- Linköpings universitet,Reglerteknik,Tekniska högskolan
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- Ljung, Lennart, 1946- (author)
- Linköpings universitet,Reglerteknik,Tekniska högskolan
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(creator_code:org_t)
- 2004-04-20
- 2004
- English.
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Series: LiTH-ISY-R, 1400-3902 ; 2592
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In: International Journal of Robust and Nonlinear Control. - Linköping : John Wiley & Sons. - 1049-8923 .- 1099-1239. ; 14:11, s. 959-970
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Abstract
Subject headings
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- Much attention in robust identification and control has been focused on linear low order models approximating high order linear systems. We consider the more realistic situation with a linear model approximating a nonlinear system. We describe how a nonlinear model error model can be developed, that allows a complete linear design process that results in a closed loop system with performance robustness guarantees (in terms of gain from disturbance to output) against the nonlinear error. Clearly the design can be successful only if the linear model is a reasonably good approximation of the system. A particular aspect of the design process is to define a workable definition of 'practical stability' for robust control design, with possible non-linear model errors. We use affine norms for that purpose.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
Keyword
- Identification
- Nonlinear
- Control
- Model error model
- Robustness
- TECHNOLOGY
- TEKNIKVETENSKAP
- Automatic control
- Reglerteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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