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Combined design of disturbance model and observer for offset-free model predictive control

Pannocchia, Gabriele and Bemporad, Alberto Combined design of disturbance model and observer for offset-free model predictive control. IEEE Transactions on Automatic Control, 52 (6). pp. 1048-1053. ISSN 0018-9286 (2007)

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Abstract

This note presents a method for the combined design of an integrating disturbance model and of the observer (for the augmented system) to be used in offset-free model predictive controllers. A dynamic observer is designed for the original (nonaugmented) system by solving an Hprop control problem aimed at minimizing the effect of unmeasured disturbances and plant/model mismatch on the output prediction error. It is shown that, when offset-free control is sought, the dynamic observer is equivalent to choosing an integrating disturbance model and an observer for the augmented system. An example of a chemical reactor shows the main features and benefits of the proposed method.

Item Type: Article
Identification Number: 10.1109/TAC.2007.899096
Uncontrolled Keywords: Hprop control problem; disturbance model design; dynamic observer; integrating disturbance model; offset-free model predictive control; plant/model mismatch; H infinity control; control system synthesis; predictive control
Subjects: Q Science > QA Mathematics
T Technology > TA Engineering (General). Civil engineering (General)
Research Area: Computer Science and Applications
Depositing User: Professor Alberto Bemporad
Date Deposited: 27 Jul 2011 08:36
Last Modified: 05 Aug 2011 12:59
URI: http://eprints.imtlucca.it/id/eprint/485

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