Reliability Evaluation of Distribution Network Considering Distributed Intermittent Renewable Energy Access

Abstract

Aiming at the randomness of distributed power output power, a common method and index system for reliability evaluation of distribution network with intermittent renewable DG is first established; then the reliability calculation model of distribution network containing DG is established, and the reliability index of load point after island formation is analyzed combined with the island operation mode of distribution network; the power supply reliability of distribution network containing DG is analyzed and calculated by the traditional fault consequence analysis method and the minimum path algorithm. The IEEE-RBTS test system with DG is simulated and calculated, the results show that DG can improve the power supply reliability of the distribution network after reasonable access to the distribution network, and different DG reliability models have different effects on the reliability index.