Assessment of the Impact of Distributed Generation and Distribution Network Faults on Generation Reliability Indices

In addition to effects on the distribution network such as reducing loss, improving voltage profile, and increasing reliability, installing DGs can also indirectly affect the power system generation reliability. But unlike the transmission network, which is considered to be completely reliable when studying HLI level reliability studies, the distribution network, which contains most of the distributed power generation capacity, has high incidence, lower levels of automation, and radial structure that can lead to capacity closure. These units are crafted. Therefore, in this article, a method is proposed to combine the uncertainties of distribution network and forced outage rate of DG into “Equivalent Forced Outage Rate” or EFOR. Using this parameter, DGs can be moved from the distribution network to the sub-transmission bus to participate in forming the capacity outage probability table and calculating HLI reliability indices. The proposed method has a Single Contingency approach to distribution network events and therefore has a higher speed compared to methods such as Monte Carlo simulation.