【作者】 胡卫东；

【导师】 刘万顺；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2007， 硕士

【摘要】 随着西电东送、南北互供等工程的建设,大量的超高压输电线路已在电网中投入使用。值得一提的是同杆并架双回线路出线走廊窄,单位走廊输送能力强,节省投资,从而越来越多地在电力系统中广泛应用。本文在分析和探讨输电线路参数和目前主要故障定位算法之后,并在前期同学工作的基础上提出了一种换位同杆并架双回线的双端故障定位新算法。并从理论和仿真的角度完善了一种不换位同杆并架双回线的故障定位新算法。同时两种算法经适当修改也可应用到单回线,从而实现单回线、双回线和多回线算法的统一。最后基于线路Bergeron方程和行波的传播规律并利用数学形态学这一现代数字信号处理工具对单回线单端故障定位算法进行了较深入的再研究,并提出了基于时域的改进型单端故障定位新算法。EMTP仿真表明:本文算法是正确性的和有效性的,算法定位准确、精度较高,具有一定的工程实用价值。更多还原

【Abstract】 With west-east and north-south electricity transmission, EHV transmission lines in a grid has been used. It is worth mentioning double transmission line on the same tower is narrow corridors, thus more and more widely used in the power system.Based on the analysis of the present fault location algorithms and the preliminary work of the students with the transposition of the transposed fault location algorithm. From the perspective of improving the theory and simulation of a double transmission line on the same tower untransposed line fault location algorithm. Bergeron line on the final wave propagation equations and mathematical morphology and the use of modern digital signal processing tools for single-line single-terminal fault location algorithm for a more thorough study again and based on the modified single-ended fault location time-domain algorithm.EMTP simulation: the algorithm is accuracy and validity, and the algorithm positioning accuracy, high precision, have some practical value.更多还原