【作者】 吴瑞春；

【导师】 张新国；

【作者基本信息】 华北电力大学（河北） ， 电力系统及其自动化， 2008， 硕士

【摘要】 针对基于录波信息的分层分布式电网故障诊断系统的研究,文中结合模故障分量和相关分析选相元件两者的特点,提出了一套完整的选相方案。同时对于单端测距文中根据各种故障类型的特点,利用故障分析法和过零测量法,提出了一种可以消除了过渡电阻和对端运行状况影响的单端测距方法。针对目前双端测距算法中计算量大,而且许多算法要求双端的信息量同步的问题。本文利用线路发生不对称故障时,电压、电流负序分量的特点(故障点的负序电压最高)进行分析计算,从而推导出双端精确定位的算法。并且文中提出了二种简单可行的方法实现了两端的数据同步。更多还原

【Abstract】 Based on the information recorded against the wave hierarchical distributed network fault diagnosis system study, in combination with the characteristics of model fault component and related components phase selector ,this paper presents a comprehensive programmer of election. At the same time, the single-terminal location in accordance with the characteristics of various types of faults, fault analysis and use of a zero measurement, which can be eliminated on transition resistance and impact on the operation of a single terminal location method. View of the current two-terminal location algorithm computation, and many algorithms call for the amount of information synchronous dual-issue. By using asymmetric fault lines occur when voltage and current characteristics of the negative-sequence component (the fault of the highest negative sequence voltage) analysis and calculation, which is derived from the double-precision positioning algorithm. And paper presents two kinds of simple and feasible method to achieve the ends of the data synchronization.更多还原