Reliability analysis of distribution system with DG considering operation homogeneity

Operation homogeneity is a basic state property of distribution system with DG. It is related to the active power of bus and DG in the distribution system with DG. Load, network and element parameters are the influencing factors too. High-reliability supplying for power users is a very important feature of distribution system with DG, and it is the material basis for the high satisfaction of power users. In this paper, the operation homogeneity index, reliability indices and the line loose which is the characteristic of economy are calculated and analyzed based on the modified IEEE-33 system. The results show that these reliability index demand bigger DG active power, while these homogeneity indices, security index, economy index needing moderate DG active power. Operation and planning department will decide the operation scheme in practical work.