Impact of Distributed Generation on the power supply reliability

Distributed Generations (DG) have a great impact on the traditional distribution system. The increasing and wide use of DGs seems to be an edged sword, which has both positive and negative effects. From the perspective of power grid structure and distributed energy resource operation characteristics, this paper analyzed the different factors that influence the power supply reliability, such as the access points, the access mode, and the operation characteristics of DGs. Through the simplified model and some assumed condition, the relationship between the penetration of DG and power supply reliability has been studied.