A NEW METHOD FOR RANDOM CLUSTERING IN DISTRIBUTION SYSTEMS

Distribution system is divided into two levels: medium voltage (MV) as primary network and low voltage (LV) as secondary network. In power distribution planning (PDP), to have a comprehensive view, costs of primary and secondary networks must be considered coordinately. The PDP problem is exacerbated incorporating distributed generators (DG). Power distribution planning approaches are evolving to new models and methods by introduction of smart grids. Allocation of new feeders, new routes that connect from the new feeders to substations and tie-line routes to other feeders, must be determined so as to minimize installation costs of new facilities under such constraints as load-balancing, current capacity, voltage drop and geographical installation restrictions, when feeders are newly expanded in a distribution system. However, finding the optimal feeder expansion plan among various candidates, is difficult for planners. In order to VXSSRUW SODQQHUVʼ GHFLVLRQ RI IHHGHU expansion planning in this paper, the author propose a method by which the least cost expansion facilities can be obtained through searching all the candidates that satisfy such expansion constraints as voltage drop, as well as geographical installation restrictions and power loss and etcs. Research results show that in PDP problem, incorporated with DG, it is required to coordinately plan the primary and the secondary network. In this paper, all calculations will be done in medium voltage (MV) level.Finally,in current paper varied bandwidth of optimal answers in distribution network analysis is an excellent performance of robust optimization which will be discussed in the future.

کلیدواژه ها:

power distribution planning (PDP) ، robust optimization ، Isolated Planning ، Coordinated Planning ، multi clusters of network.