eprintid: 485 rev_number: 12 eprint_status: archive userid: 7 dir: disk0/00/00/04/85 datestamp: 2011-07-27 08:36:36 lastmod: 2011-08-05 12:59:53 status_changed: 2011-07-27 08:36:36 type: article metadata_visibility: show contact_email: alberto.bemporad@imtlucca.it item_issues_count: 0 creators_name: Pannocchia, Gabriele creators_name: Bemporad, Alberto creators_id: creators_id: alberto.bemporad@imtlucca.it title: Combined design of disturbance model and observer for offset-free model predictive control ispublished: pub subjects: QA subjects: TA divisions: CSA full_text_status: none 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 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. date: 2007-06 date_type: published publication: IEEE Transactions on Automatic Control volume: 52 number: 6 publisher: IEEE pagerange: 1048-1053 id_number: 10.1109/TAC.2007.899096 refereed: TRUE issn: 0018-9286 official_url: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4237315 citation: 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)