Multivariable robust adaptive controller using reduced-order model
| Autor: | Terje Hertzberg, I. Olsen, C. Sørlie, Magne Hillestad, T.F. Anderson |
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| Rok vydání: | 1990 |
| Předmět: |
Computer science
Multivariable calculus Control engineering lcsh:QA75.5-76.95 Computer Science Applications Reduced order Control and Systems Engineering Control theory Modeling and Simulation Local models dynamic simulation adaptive error estimation lcsh:Electronic computers. Computer science Software |
| Zdroj: | Modeling, Identification and Control, Vol 11, Iss 2, Pp 73-88 (1990) |
| ISSN: | 1890-1328 0332-7353 |
| DOI: | 10.4173/mic.1990.2.1 |
| Popis: | A general method is developed for predicting the deviation between local and rigorous thermodynamic property models. The method is based on a quadratic error structure. The curvature matrix is updated after each parameter revision. The updating scheme utilizes the observed deviation as a measure for correcting the matrix and thus does not require any additional rigorous model evaluations. A recursive least squares procedure with variable forgetting is adopted for the parameter updating. A local model structure for K-value evaluations is applied in a dynamic simulation model of a batch distillation column. The efficiency and accuracy of the proposed method are tested for two different mixtures; a nearly ideal and a strongly non-ideal mixture. |
| Databáze: | OpenAIRE |
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