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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Robust model predictive controller with output feedback and target tracking

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Author(s):
Gonzalez, A. H. [1] ; Odloak, D. [2]
Total Authors: 2
Affiliation:
[1] Univ Nacl Litoral, CONICET, Inst Technol Dev Chem Ind INTEC, Buenos Aires, DF - Argentina
[2] Univ Sao Paulo, Dept Chem Engn, BR-05508 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: IET Control Theory and Applications; v. 4, n. 8, p. 1377-1390, AUG 2010.
Web of Science Citations: 9
Abstract

A model predictive controller (MPC) is proposed, which is robustly stable for some classes of model uncertainty and to unknown disturbances. It is considered as the case of open-loop stable systems, where only the inputs and controlled outputs are measured. It is assumed that the controller will work in a scenario where target tracking is also required. Here, it is extended to the nominal infinite horizon MPC with output feedback. The method considers an extended cost function that can be made globally convergent for any finite input horizon considered for the uncertain system. The method is based on the explicit inclusion of cost contracting constraints in the control problem. The controller considers the output feedback case through a non-minimal state-space model that is built using past output measurements and past input increments. The application of the robust output feedback MPC is illustrated through the simulation of a low-order multivariable system. (AU)