中国电力2016，Vol.49Issue(7)：20-26,7.DOI:10.11930/j.issn.1004-9649.2016.07.020.07
基于改进网络等值和故障影响矩阵的复杂配电网可靠性评估
Reliability Evaluation of Complex Distribution Network Based on Improved Network-Equivalent and Fault Influence Matrix
摘要
Abstract
A new method is proposed for the reliability evaluation of complex distribution networks,which consists of multistage subfeeders with breakers and protections installed.First,the complex distribution network is simplified into several simple node networks.The upward-equivalent node is connected to the branch switch directly in the improved network-equivalent method.The impact of the superior network on the lower network is treated as an area-node reliability index of the downward-equivalent simple node network,which is added to the reliability indexes in the subsequent computing process.The error of the traditional network-equivalent method is avoided in the improved method.Then a fast method based on the fault influence matrix is derived.The reliability indexes can be calculated using the proposed method.The effect of various switching devices on the system reliability is also taken into account during the computing process.It is not only as accurate as the FMEA method,but faster than the existing algorithms.Moreover,it is easy for programming.Test results are presented to illustrate the effectiveness of the algorithm.关键词
电力系统/复杂配电网/分支子馈线/可靠性评估/网络化简/故障影响矩阵/开关故障/自动开关拒动Key words
power system/complex distribution networks/sub-feeders/reliability evaluation/network simplification/fault influence matrix/switch faults/automatic switch refusing to action分类
信息技术与安全科学引用本文复制引用
张杰,王晓刚,邓智杰,李东起,陈国坤..基于改进网络等值和故障影响矩阵的复杂配电网可靠性评估[J].中国电力,2016,49(7):20-26,7.基金项目
广州市属高校科技计划项目(1201431123)This work is supported by the Guangzhou Science and Technology Plan Projects under Grant(No.1201431123). （1201431123）
