Reliability Analysis Of Distribution System With Distributed Generation

As the distributed generation is integrated into distribution system, distribution system is converted from a radiation-type to an inter-connected, thus reliability analysis model and its computing method changes. Against the uncertainty of distributed generation output, I build a multi reliability status mode for distributed generation. Meanwhile, the inevitable environment factor and the time-varying factors of repairable resources are taken into account. Combining the island operation mode, I improved the traditional minimal cut method, making it adaptable to the reliability calculating of distribution system. I analyze the reliability for the five different simulation programs of IEEE-RBTS Bus 6, indicating that environment factors, repairable resources and distributed power positions and its reliability will bring different influence to reliability index. The research also points out the practical operation should be take all these factors into consideration to lay out the distribution power reasonably to improve the reliability of distribution system.