摘要I摘要本文基于配网自动化系统平台，在分析和研究用于单相接地故障判据的诸多电气特征量的基础上，构建了三维逻辑空间分析模型，提出了一种接地故障定位的新算法。该算法综合考虑了配电网络中的各个节点呈现的电气特征和电气分布规律，体现了逻辑“0”、“1”的等同贡献。文中还对算法的形成予以理论推导并给出算法误差容错函数，具体算例的分析结果从多个侧面验证了该算法的正确性和有效性。关键词：配网自动化，小电流接地系统，特征判据，空间分析模型，逻辑算法，故障定位ABSTRACTBasedontheplatformofDistributionAutomation,thispaperdoessomeresearchandanalysisonseveralelectriccharacteristics,fromwhichsinglephase-to-groundfaultcouldbedistinguished.Inthepaper,alogicalspaceofmodelisbuiltandanewlogicalalgorithmisproposed.Thisalgorithmconsiderssyntheticallyelectriccharacterofthewholenodesofpowernetworksandelectricrules,andaccepttheeffectoflogic“0”,whichplaythesameroleaslogic“1”.Otherwise,thepapergivestheoreticalproofandevolutionofhowthealgorithmcomesintobeing,anddefineserror-admitfunction.Lastly,thealgorithmisvalidatedbythreeexamplesinthreeaspects.LiuDaobing(PowerSystem？anditsAutomation)DirectedbyProf.XuYuqinKEYWORDS:distributionautomation,small-currentgroundingnetwork,characteristiccriterion,modelofspaceforanalysis,logicalalgorithm目录I目录中文摘要ABSTRACT第一章引言..............................................11.1课题背景和意义...................................................11.1.1中性点接地方式概述..........................................11.1.2配电自动化概述..............................................21.1.3单相接地故障保护的背景.....................................21.2国内外研究现状分析...............................................51.3本文主要工作......................................................6第二章配电自动化系统概述................................72.1配电自动化系统构成...............................................72.1.1主站系统....................................................72.1.2通讯系统....................................................82.1.3配电终端...................................................102.2FA的实现........................................................112.6故障定位的实现思路..............................................12第三章单相接地故障时各特征量分析........................143.1原理简介.........................................................143.2零序电流无功分量................................................153.3零序电流的有功分量..............................................173.4零序导纳.........................................................183.5负序电流.........................................................193.6暂态零序电流SFB分量............................................213.7基于小波变换的零序暂态方向......................................23第四章故障定位的逻辑算法构建............................264.1构建模型.........................................................264.2提出逻辑算法.....................................................274.3误差分析.........................................................274.4算例验证.........................................................294.4.1特征量判据误选.............................................304.4.2节点失效...................................................314.4.3随机干扰...................................................32华北电力大学硕士学位论文题目：基于配电自动化系统单相接地故障定位的研究英文题目：stud...
