Extended formulation for hop constrained distribution network configuration problems

Jérôme De Boeck 1 Bernard Fortz 2, 3
3 INOCS - Integrated Optimization with Complex Structure
ULB - Université Libre de Bruxelles [Bruxelles], Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Abstract : A distribution network is a system aiming to transfer a certain type of resource from feeders to customers. Feeders are producers of a resource and customers have a certain demand in this resource that must be satisfied. Distribution networks can be represented on graphs and be subject to constraints that limit the number of intermediate nodes between some elements of the network (hop constraints) because of physical constraints. This paper uses layered graphs for hop constrained problems to build extended formulations. Preprocessing techniques are also presented to reduce the size of the layered graphs used. The presented model is studied on the hop-constrained minimum margin problem in an electricity network. This problem consists of designing a connected electricity distribution network, and to assign customers to electricity feeders at a maximum number of hops H so as to maximize the minimum capacity margin over the feeders to avoid an overload for any feeder. Numerical results of our model are compared with those of state-of-the-art solution techniques of the minimum margin problem form Rossi et al. [20]. Variations of the initial problem are also presented, considering losses due to transportation or by replacing hop constraints by distance constraints, a variation arising in the context of multicast transmission in telecommunications.
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Article dans une revue
European Journal of Operational Research, Elsevier, 2018, 265 (2), pp.488 - 502. 〈10.1016/j.ejor.2017.08.017〉
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Jérôme De Boeck, Bernard Fortz. Extended formulation for hop constrained distribution network configuration problems. European Journal of Operational Research, Elsevier, 2018, 265 (2), pp.488 - 502. 〈10.1016/j.ejor.2017.08.017〉. 〈hal-01665624〉

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