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Pilotage de production à moyen et à court terme : contribution aux problématiques d'optimisation globale vs locale et à l'ordonnancement dans les raffineries

Abstract : In today's society the optimal control of medium and short term production scheduling represents a very important decision into supply chain management.

In the first part of this work, we are interested in the problem of optimal control production in a medium term supply chain of two stages. The objective is to understand, in our system, what is the gain of global optimisation in contrast to local. We evaluate the behaviour of our system within two different types of optimisation (deterministic and stochastic). The models are formulated using tools from mathematical programming and from queuing theory. Many analyses are carried out, in order to define the behaviour of each model. These analyses enable a comparison between the models and help us identify the true superiority of global optimisation.

In the second part, we examine the problem of short term production scheduling, which is applied in the petrochemical industry. We study the problem of scheduling the loading and unloading of tanks and the scheduling of crude oil to the refinery. The objective here is to minimise the set up cost of the tanks. We propose a general model, which takes into consideration all the different types of blending preparation and the different options of distillation of the crude oil.
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Submitted on : Friday, October 26, 2007 - 10:12:58 AM
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Georgios Saharidis. Pilotage de production à moyen et à court terme : contribution aux problématiques d'optimisation globale vs locale et à l'ordonnancement dans les raffineries. Sciences de l'ingénieur [physics]. Ecole Centrale Paris, 2006. Français. ⟨tel-00182465⟩

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