基于区域可达性分析的复杂配电网可靠性评估  

Reliability Evaluation of Complex Distribution Networks Based on Regional Accessibility Analysis

作　　者：许丹[1,2] 唐巍[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京100083 [2]中国电力科学研究院,北京100192

出　　处：《电工技术学报》2011年第6期172-178,共7页Transactions of China Electrotechnical Society

基　　金：国家"十一五"科技支撑计划资助项目(2006BAJ04B06)

摘　　要：随着配电网规模的扩大和用户对供电可靠性要求的提高,复杂配电网可靠性评估日益成为研究的热点。针对传统可靠性计算方法过程繁琐、描述复杂、存在冗余搜索的问题,本文引入图论中的可达性分析理论,提出了基于区域可达性分析的复杂配电网可靠性评估方法。该方法以矩阵分析与计算为基础,将可靠性评估转化为配电区域与电源点的连通性问题,通过可达性矩阵分析实现了配电网分区和故障后果模式判定。配电网分区和可达性分析的结合,有效地降低了配电网可靠性评估的复杂度。仿真结果表明了该方法的正确性和有效性。Considering the cumbersome process,complex describing and redundant searching of the traditional reliability evaluation methods,a novel reliability evaluation method of complex distribution networks based on network partitioning and accessibility analysis is proposed,which can transfer reliability evaluation process into accessibility analysis between sources and areas.The distribution network partitioning is achieved by using accessibility matrix and adjacent matrix.The construction method of accessibility matrix according different periods after failure is put forwards,and the way to determine the failure result types of loads is given.The combination of network partitioning and accessibility analysis effectively reduces complexity of reliability evaluation of distribution network.The simulation results show that the proposed method is correct and effective.

关 键 词：复杂配电网 可靠性评估 可达性分析 配电网分区 故障后果类型 

分 类 号：TM732[电气工程—电力系统及自动化]