计及微网孤岛运行方式的配电网可靠性评估  

Reliability Evaluation of Distribution Network Considering Islanded Operation of Microgrid

作　　者：袁修广 黄纯[1] 张磊[1] 于浩明[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082

出　　处：《电网技术》2015年第3期690-697,共8页Power System Technology

基　　金：国家863高技术基金项目(2011AA05A114)~~

摘　　要：提出了一种既适用于传统配电网络,也适用接入分布式电源的微网配电系统的可靠性评估方法。首先,依据微网孤岛运行方式对传统配电网故障分类方式进行了改进;其次,通过研究传统分布式电源与可再生分布式电源的发电特性,提出了各类分布式电源发电概率模型;最后,综合考虑甩负荷与切负荷2种情况,给出了微网孤岛运行时分布式电源对负荷供电的充裕度概率模型,并将其成功运用到含微网的复杂配电系统可靠性评估中。以RBTS-BUS6配电系统为例验证了所提评估方法的有效性。A novel reliability evaluation method suitable for both traditional distribution network and distribution network connected with distributed generations （DG） is proposed. Firstly, according to the islanded operation mode of Microgrid the fault classification mode for traditional distribution network is modified; secondly, through the research on the generation characteristics of traditional DG and renewable DG~ probabilistic models of various kinds of DG are given; finally, synthetically considering load shedding and load rejection, a probabilistic model of the abundance of supplying power by DG during islanded operation of microgrid to consumers is put forward and successfully applied in the reliability evaluation of complex distribution network containing microgrids. The effectiveness of the proposed evaluation method is validated by simulation results of RBTS-BUS6, to which the DG is added.

关 键 词：分析模型 分布式电源 配电网 可靠性评估 智能电网 

分 类 号：TM721[电气工程—电力系统及自动化]