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Application Set App...
Application Set Approximation in Optimal Input Design for Model Predictive Control
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- Ebadat, Afrooz (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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- Annergren, Mariette (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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- Larsson, Christian A. (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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- Rojas, Cristian R. (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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- Wahlberg, Bo (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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- Hjalmarsson, Håkan, 1962- (author)
- KTH,Reglerteknik,ACCESS Linnaeus Centre
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Molander, Mats (author)
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Sjöberg, Johan (author)
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(creator_code:org_t)
- 2014
- 2014
- English.
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In: 2014 European Control Conference (ECC). - 9783952426913 ; , s. 744-749
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This contribution considers one central aspect of experiment design in system identification, namely application set approximation. When a control design is based on an estimated model, the achievable performance is related to the quality of the estimate. The degradation in control performance due to plant-modeling missmatch is quantified by an application cost function. A convex approximation of the set of models that satisfy the control specification is typically required in optimal input design. The standard approach is to use a quadratic approximation of the application cost function, where the main computational effort is to find the corresponding Hessian matrix. Our main contribution is an alternative approach for this problem, which uses the structure of the underlying optimal control problem to considerably reduce the computations needed to find the application set. This technique allows the use of applications oriented input design for MPC on much more complex plants. The approach is numerically evaluated on a distillation control problem.
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
- Cost functions
- Design
- Distillation
- Model predictive control
- Optimal control systems
- Predictive control systems
- Achievable performance
- Computational effort
- Control specifications
- Convex approximation
- Distillation control
- Optimal control problem
- Optimal input design
- Quadratic approximation
Publication and Content Type
- ref (subject category)
- kon (subject category)
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