Reactive Scheduling in Batch Plants

HENNING, GABRIELA

Angra dos Reis

Otro; Pan American Advanced Studies Institute Program on Process Systems Engineering ? PASI 2011. Process Modeling and Optimization for Energy and Sustainability; 2011

National Science Foundation

In the first part of this seminar knowledge about reactive scheduling is systematized and relevant contributions are analyzed. Concepts about rescheduling strategies, policies and methods are presented. Regarding performance measures, different appraisals of schedule change are evaluated, besides the regular ones associated with schedule efficiency and cost. In the second part, advances in the development of an event-driven, reactive support environment are presented. The framework explicitly models the status of the in-progress schedule, and typifies the unexpected event to characterize its context. This allows making a proper specification of the problem to be faced. The resulting specification is translated into a Constraint Programming (CP) model and, finally, the resulting formulation is solved by means of a CP approach.