eprintid: 475
rev_number: 13
eprint_status: archive
userid: 7
dir: disk0/00/00/04/75
datestamp: 2011-07-27 08:32:34
lastmod: 2014-03-05 13:43:45
status_changed: 2011-07-27 08:32:34
type: article
metadata_visibility: show
contact_email: alberto.bemporad@imtlucca.it
item_issues_count: 0
creators_name: Di Cairano, Stefano
creators_name: Bemporad, Alberto
creators_name: Júlvez, Jorge
creators_id: 
creators_id: alberto.bemporad@imtlucca.it
creators_id: 
title: Event-driven optimization-based control of hybrid systems with integral continuous-time dynamics
ispublished: pub
subjects: QA75
subjects: TA
divisions: CSA
full_text_status: none
abstract: In this paper we introduce a class of continuous-time hybrid dynamical systems called integral continuous-time hybrid automata (icHA) for which we propose an event-driven optimization-based control strategy. Events include both external actions applied to the system and changes of continuous dynamics (mode switches). The icHA formalism subsumes a number of hybrid dynamical systems with practical interest, e.g., linear hybrid automata. Different cost functions, including minimum-time and minimum-effort criteria, and constraints are examined in the event-driven optimal control formulation. This is translated into a finite-dimensional mixed-integer optimization problem, in which the event instants and the corresponding values of the control input are the optimization variables. As a consequence, the proposed approach has the advantage of automatically adjusting the attention of the controller to the frequency of event occurrence in the hybrid process. A receding horizon control scheme exploiting the event-based optimal control formulation is proposed as a feedback control strategy and proved to ensure either finite-time or asymptotic convergence of the closed-loop.
date: 2009
date_type: published
publication: Automatica
volume: 45
number: 5
publisher: Elsevier Science Limited
pagerange: 1243-1251
id_number: 10.1016/j.automatica.2008.12.011 
refereed: TRUE
official_url: http://www.sciencedirect.com/science/article/pii/S0005109809000247
citation:   Di Cairano, Stefano and Bemporad, Alberto and Júlvez, Jorge  Event-driven optimization-based control of hybrid systems with integral continuous-time dynamics.  Automatica, 45 (5).  pp. 1243-1251.       (2009)