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Influence of supervisory control on the dependability of a hybrid system

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3 Author(s)
Perez Castaneda, G.A. ; Metal-Mech. Dept. & Lab., Inst. Tecnol. de Tehuacan, Puebla, Mexico ; Brinzei, N. ; Aubry, J.-F.

A dynamic hybrid system is described by a set of continuous variables and a set of discrete events interacting together. The reality also requires taking into account component failures and the stochastic behavior of the system. Some events or variables take then a stochastic character. The component failures are in fact unobservable events and partially controllable. We are going to show how the control theory might be a mean to help to the conception of safe systems assuming that changes in the system (introduction of safety barriers ...) would act as a supervisor in the context of simulation. The behavior of the system so “controlled” may be established without having to rebuild a complete model of the modified system. This assumes that the propagation of dangerous initiating events is inhibited and then the probability of dangerous states of the system reduced to zero.

Published in:

System Theory, Control, and Computing (ICSTCC), 2011 15th International Conference on

Date of Conference:

14-16 Oct. 2011