eprintid: 542 rev_number: 9 eprint_status: archive userid: 7 dir: disk0/00/00/05/42 datestamp: 2011-07-08 11:23:17 lastmod: 2011-08-04 07:29:07 status_changed: 2011-07-27 08:44:05 type: book_section metadata_visibility: show contact_email: alberto.bemporad@imtlucca.it item_issues_count: 0 creators_name: Di Cairano, Stefano creators_name: Bemporad, Alberto creators_id: creators_id: alberto.bemporad@imtlucca.it title: An equivalence result between linear hybrid automata and piecewise affine systems ispublished: pub subjects: QA75 divisions: CSA full_text_status: none keywords: Automata, Computer science, Control systems, Control theory, Mathematical model, Optimal control, Power system modeling, Predictive models, Stability analysis, USA Councils abstract: In this paper we examine a relationship existing among linear hybrid automata (LHA) and piecewise affine (PWA) systems. While a LHA is an autonomous non-deterministic model, a PWA system is a deterministic model with inputs. By extending continuous-time PWA models to include the dynamics of discrete states and resets, we show in a constructive way that a LHA can be equivalently represented as a PWA system, where equivalent means that the two systems generate the same trajectories. The key idea is to model the uncertainty associated with LHA transitions as an additional vector of input disturbances in the corresponding PWA model. By linking the LHA modelling framework (popular in computer science) with the PWA modelling framework (popular in systems science), our equivalence result allows one to expand the use of several existing control theoretical tools (for stability analysis, optimal control, etc.) developed for PWA models to a much wider class of hybrid systems date: 2006 date_type: published publication: Decision and Control publisher: IEEE place_of_pub: 13th-15th December 2006 pagerange: 2631-2636 event_title: 45th IEEE Conference on Decision and Control event_location: 13th-15th December 2006 event_dates: San Diego, CA id_number: 10.1109/CDC.2006.377408 refereed: TRUE isbn: 1-4244-0171-2 book_title: Decision and Control official_url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4177779&isnumber=4176993 funders: This work was supported by the European Community through the HYCON Network of Excellence, contract number FP6-IST-511368. citation: Di Cairano, Stefano and Bemporad, Alberto An equivalence result between linear hybrid automata and piecewise affine systems. In: Decision and Control. IEEE, 13th-15th December 2006, pp. 2631-2636. ISBN 1-4244-0171-2 (2006)