基于GT-RBD的电力系统可靠性分析方法  

Reliability analysis method based on GT-RBD for power system

作　　者：陈幸 陈国华 吴浩 陈盛华 朱云 CHEN Xing;CHEN Guo-hua;WU Hao;CHEN Sheng-hua;ZHU Yun(Economic and Technological Research Institute,State Grid Jiangxi Electric Power Co.Ltd.,Nanchang 330000,China)

机构地区：[1]国网江西省电力有限公司经济技术研究院,南昌330000

出　　处：《沈阳工业大学学报》2023年第1期17-23,共7页Journal of Shenyang University of Technology

基　　金：江西省科技厅项目(S2017CXCPB0950)。

摘　　要：针对现有电力系统可靠性评估方法均存在一定的局限性,难以从总体上对系统可靠性进行分析的问题,提出了一种新型电力系统可靠性分析方法.通过引入图论确定线路和节点的状态,并根据节点的可靠性程度对给定的设备组合进行分类.采用可靠性框图评估每一节点的可靠性,并通过在MATLAB中搭建IEEE-9节点系统验证方法的有效性.结果表明,提出的方法可以较好地应用于IEEE-9节点系统中,能够将线路中的节点可靠性进行排序,其准确率可达97.16%,实现了电力系统的安全性和可靠性的有效分析.Aiming at the problem that the existing reliability evaluation methods for power system have some limitations resulting in difficulties in comprehensively analysing the system reliability,a new reliability analysis method for power system was proposed.Through the introduction of graph theory,the states of lines and nodes were determined,and the given equipment combination was classified according to the reliability degree of nodes.In addition,the reliability of each node was evaluated by a reliability block diagram,and the validity of as-proposed method was verified by building an IEEE-9 nodes system in MATLAB.The results show that the as-proposed method can be well applied to the IEEE-9 nodes system,and the reliability of nodes in lines can be sequenced,with an accuracy of 97.16%,to realize the effective analysis for the security and reliability of power system.

关 键 词：图论 可靠性分析 电力系统 IEEE-9节点系统 局限性 有效性 准确率 安全性 

分 类 号：TM732[电气工程—电力系统及自动化]