计及其微网孤岛运行方式的配电网可靠性评估.pdfVIP

39 卷 3 期 电 网 技 术 Vol. 39 No. 3 20 15 年3 月 Power System Technology Mar. 20 15 文章编号：1000-3673 （20 15）03-0690-08 中图分类号：TM 72 1 文献标志码：A 学科代码：470 4051 计及微网孤岛运行方式的配电网可靠性评估 袁修广，黄纯，张磊，于浩明 （湖南大学 电气与信息工程学院，湖南省 长沙市 4 10082 ） Reliability Evaluation of Distribution Network Considering Islanded Operation of Microgrid YUAN Xiuguang, HUANG Chun, ZHANG Lei, YU Haoming (College of Electrical and Information Engineering, Hunan University, Changsha 410082, Hunan Province, China) ABSTRACT: A novel reliability evaluation method suitable [1] 目标 。目前，随着分布式电源以及相关技术的发 for both traditional distribution network and distribution 展，为了更好地利用分布式电源，在原有配电网的 network connected with distributed generations (DG) is [2] 基础上引入了 “微网”的概念 。在智能电网配电 proposed. Firstly, according to the islanded operation mode of 系统中，由于先进的自动化水平以及允许多微网运 Microgrid the fault classification mode for traditional distribution network is modified; secondly, through the 行模式保护方案的实施，微网的孤岛运行方式有助 research on the generation characteristics of traditional DG and 于提高电网的局部以及整体可靠性。 renewable DG, probabilistic models of various kinds of DG are 然而， 目前为止，国内外对微网以及接入分 given; finally, synthetically considering load shedding and load 布式电源的配电系统进行可靠性评估的研究还较 rej ection, a probabilistic model of the abundance of supplying [3] power by DG during islanded operation of microgrid to 少 。文献[4] 用解析法对含有微电网的配电系统 consumers is put forward and successfully applied in the 进行了简单的可靠性评估，并对比了不同容载比下 reliability evaluation of complex distribution network 微网对配电网可靠性的影响，给出了孤岛运行