Investigation of new distribution grid architecture for accomodating higher dg penetration rateReportar como inadecuado

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1 G2ELab - Laboratoire de Génie Electrique de Grenoble 2 G-SCOP OC - OC G-SCOP - Laboratoire des sciences pour la conception, l-optimisation et la production

Abstract : Environment considerations combined to regulatory incentives and the opening of the energy markets has fostered the development of distributed generator DG in particular renewable ones. However, given the present operating modes and grid structures, a massive introduction of DG could deeply modify the behaviour of distribution networks. The two strategies used in France by the Distribution System Operator to anticipate the problems caused by DG are either reinforcement of the network or a dedicated feeder. The first strategy is acceptable as far as a marginal rate of DG is considered but could become too expensive in presence of a large amount of DG. The dedicated feeders strategy direct connection of DGs to the HV-MV substation could face a problem of local constraints. Inspired by the meshed operation of transmission network, a better way to integrate those generating units could be achieved through adding loops in the distribution network at appropriate locations. In order to compare the current architecture and operation mode with a meshed structure for better enabling more DG penetration, a stochastic algorithm based on Monte Carlo method was developed. This method was tested successfully on several networks which are parts of real urban and rural ones.

Autor: Marie-Cécile Alvarez-Hérault - Raphaël Caire - Nouredine Hadjsaid - Justine Descloux - Bertrand Raison - Wojciech Bienia -



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