Distribution system reliability with distributed generation based on customer scattering

Abstract

This paper presents the reliability improvement with effect of customer scattering on distribution system with Distributed Generation (DG). The test system is studied in six different cases based on different customer scattering patterns. Each customer scattering case is analyzed for finding the reliability indices of the distribution system without DG, and with installation of DG at various locations along the feeder. In addition, the algorithm for assessment of average restoration time of load point is presented when DG is installed. The proposed algorithm is tested on a simple system consists of nine load points. The reliability improvement is measured by reliability indices that include SAIFI, SAIDI, CAIDI, ENS and AENS. On the other hand it provides some useful conclusions such as the customer scattering and restoration time effect the optimal location of DG in terms of system reliability.