Research On Distribution Network Connection Modes In Shenzhen Longhua District

As social and economic development, urban medium voltage distribution networkgrowing scale, the urban distribution network due to imperfections caused by powerdistribution grid structure run more problematic. In recent years, the distribution networkconnection modes were studied by many scholars, and achieved remarkable results. However,the current domestic distribution network planning and construction process, the distributionnetwork wiring pattern application has not yet formed a detailed design specification, thegoal of building distribution network wiring pattern is not clear, with a power gridconstruction chaos. Therefore, to meet with the premise of the power grid reliability,combined with the actual operation of distribution networks, further research suitable forlocal distribution network target mode connection modes and transitional significance.In this paper, commonly used for domestic and international distribution network wiringpattern on the basis of full investigation, a detailed study of a variety of distribution networkconnection modes, summarized the various advantages and disadvantages of distributionnetwork connection modes and conditions, and describes its supply scheme; through theShenzhen electricity distribution network in the typical wiring comparative study ofreliability, economy and demonstrates the applicability of the wiring should be adopted inShenzhen grid pattern; Shenzhen wiring pattern for the problems in the practical application,proposed a three-prepare for a transition program wiring pattern optimization and analysis.Longhua District of Shenzhen distribution network, for example, details of the gridzoning methods, procedures and ideas, according to the actual situation within the griddistribution network is divided into load-developed regions, the load and the load of therapid development of regional development area of uncertainty, take three different grid areaprepared for a wiring pattern or transition program. Select Longhua District Area DistributionNetwork for the object, calculated after taking connection modes optimized distributionnetwork planning target reliability index and line loss rate indicators. Analysis concluded thatdistribution network wiring pattern taken after optimization can improve the distributionnetwork of the indicators data, with superior rationality, the actual work of greatsignificance.