Abstract
The manufacturing control system must take into account the various changes intervening on it. The control system of a manufacturing cell must ensure a maximal productivity level, even if the presence of disturbance or perturbations. This production systems development is in particular characterised by the continuous searching of flexibility, and by the maximal reactivity. A particular attention is given to the influence of incidents over the productivity. We cannot stop the whole production because of a breakdown of a machine. For resolving this problem, we add a level to the supervisory named robust control level. The robustness is seen as the most high level productivity even if there are disturbances. Therefore the robust control module goal is to ensure the control system reaching production objectives even with disturbances. The first part of our contribution aims at providing a formalism to model change mechanisms between working modes. This formalism should help in nominal and degraded working mode validation. The second part of our contribution will consist in developing an approach based on the principle of supervisors commutation, for the robust control of discreet-events systems (DES). An example is presented to illustrate the proposed approach.
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Hadji, S., Favrel, J. (1999). Statechart and automatons in the supervisory robust control. In: Mertins, K., Krause, O., Schallock, B. (eds) Global Production Management. IFIP — The International Federation for Information Processing, vol 24. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35569-6_22
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DOI: https://doi.org/10.1007/978-0-387-35569-6_22
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