Distributed generation in Unbalanced Mesh Distribution System with different unbalances

Distributed Generation (DG) is an electric power source connected directly to the distribution network or on the customer site of the meter. The penetration of DG may impact the operation of a distribution network in both beneficial and detrimental ways. Some of the positive impacts of DG are: voltage support, power loss reduction, support of ancillary services and improved reliability. Therefore, the allocation of DG units should be carefully determined with the consideration of different planning incentives. In this paper, the Unbalanced Mesh Distribution System (UMDS) has been analyzed with and without placement of DG taking into consideration of different types of unbalances and different power factors. The location of the DG can be determined by using voltage index analysis and the size of DG can be computed with the help of variational technique algorithm. Results are taken on 25 bus test system.