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Planification technico-économique de la production décentralisée raccordée aux réseaux de distribution

Abstract : In the recent years, there is a worldwide wave of considerable changes in power industries, including the operation of distribution networks. Deregulation, open market, alternative and local energy sources, new energy conversion technologies and other future development of electrical power systems must pursue different goals. Also growth in the demand and change in load patterns may create major bottlenecks in the delivery of electric energy. This would cause distribution system stress. The complexity of the problems related to distribution systems planning is mainly caused by multiple objectives. It is predicted that Distributed Generation (DG) will play an increasing role in the electrical power system of the future, not only for the cost savings but also for the additional power quality. Careful coordination and placement of DGs is mandatory. Improper placement can reduce DGs benefits and even jeopardize the system operation and condition. This thesis discusses the effects of DG implementation under different distribution system conditions and states not only to decrease system costs and losses but also to improve power quality, system voltage and line congestion. Three methodologies included mathematical model to obtain the optimal DG capacity sizing and sitting investments with capability to solve large distribution system planning problem. These frameworks have allowed validating the economical and electrical benefits of introducing DG by solving the distribution system planning problem and by improving power quality of distribution system. DG installation increases the feeders? lifetime by reducing their loading and adds the benefit of using the existing distribution system for further load growth without the need for feeders upgrading. More, by investing in DG, the DISCO can minimize its total planning cost and reduce its customers? bills.
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Siyamak Porkar Koumleh. Planification technico-économique de la production décentralisée raccordée aux réseaux de distribution. Autre. Université Henri Poincaré - Nancy 1, 2011. Français. ⟨NNT : 2011NAN10021⟩. ⟨tel-01747098⟩



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