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An equivalence result between linear hybrid automata and piecewise affine systems

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)

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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

Item Type: Book Section
Identification Number: 10.1109/CDC.2006.377408
Funders: This work was supported by the European Community through the HYCON Network of Excellence, contract number FP6-IST-511368.
Uncontrolled Keywords: Automata, Computer science, Control systems, Control theory, Mathematical model, Optimal control, Power system modeling, Predictive models, Stability analysis, USA Councils
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Research Area: Computer Science and Applications
Depositing User: Professor Alberto Bemporad
Date Deposited: 08 Jul 2011 11:23
Last Modified: 04 Aug 2011 07:29
URI: http://eprints.imtlucca.it/id/eprint/542

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