双端测距以及同步算法的实现  

Realization of two-terminal fault location and synchronization algorithm

作　　者：吴瑞春[1] 焦彦军[1] 张新国[1] 

机构地区：[1]华北电力大学,河北保定071003

出　　处：《继电器》2008年第5期7-9,共3页Relay

摘　　要：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。文中提出了一种基于对称分量法的两端量测距法,该算法是建立在适用于各种故障类型的正序网进行计算测距。正序量测距有利于消除平行线路互感的影响,并且该算法简单计算量小不受过渡电阻和系统运行方式的影响。同时文中提出了二种简单可行的方法实现了两端的数据同步。解决了利用通信方法实现同步在技术上比较复杂,而且花费较大的问题。经过EMTP仿真,验证该测距算法有很高的准确性和很好的适应性。Aiming at the great amount of calculation in two-terminal data fault location algorithm and the data synchronization requirement in many other algorithms.This paper proposes a two-terminal data fault location algorithm based on the symmetrical components method. The algorithm is applicable to the fault location calculation for the positive sequence network under various kinds of malfunctions and is immune to the transitional resistance and to the variation of operational mode of system. The fault location using positive sequence data plays a positive role in eliminating the influence of inductance between parallel lines. Meanwhile, two easy and applicable methods are brought forward in the paper to synchronize the data on both ends, which embarrass the communication method in complexity and cost. In the end,the EMTP simulation shows that the algorithm enjoys a fairly high accuracy and flexibility

关 键 词：对称分量法 数据同步 双端测距 

分 类 号：TM75[电气工程—电力系统及自动化]