Wide area traveling wave based power grid fault network location method
Wide area traveling wave based power grid fault network location method
复制标题
基于广域行波的电网故障网络定位方法
DOI：
10.1016/j.ijepes.2014.05.063
复制
发表时间：
2014-12
影响因子：
5.2
通讯作者：
邓丰
中科院分区：
文献类型：
--
作者：
李泽文;曾祥君;姚建刚;邓丰
传统的故障行波定位方案仅基于一根线路的故障信息，灵敏度和可靠性较低，尤其当一台或多台行波故障定位装置（TWFLD）发生故障、启动失败或记录初始行波到达时间不正确时，都会导致故障定位失败。在分析电网故障行波传播特性的基础上，提出了一种新型的电网故障行波网络定位方法。首先分析了电网拓扑结构，提出了TWFLD的安装原理。其次，当一根输电线路发生故障时，故障行波从故障点传播到整个电网，并在安装TWFLD的变电站记录初始行波到达时间的值。然后对到达时间的值进行信息融合分析，并利用电网故障行波网络定位方法对故障点进行定位。与现有仅基于一根线路的故障信息的故障行波定位方案相比，该方法利用了整个电网的所有正确时间信息来计算故障距离。因此，即使在一个或多个TWFLD发生故障、启动失败或记录初始行波到达时间不正确的情况下，该方法也能实现可靠的故障定位。仿真结果与理论分析吻合良好，表明所提出的定位方法不仅具有较高的精度和可靠性，而且具有良好的经济性。这些特点有利于进一步增强行波定位的实用性。
Traditional fault traveling wave location schemes, which are based on the fault information of only one line, have lower sensitivity and reliability, especially when one or more traveling wave fault location devices (TWFLD) break down, startup fails or an incorrect arrival time of the initial traveling wave is recorded, this will result in the failure of the fault location. Based on the analysis of the propagation characteristics of the fault traveling wave in power grid, a novel power grid fault traveling wave network location method is proposed in this paper. Firstly, the topology of a power grid is analyzed, and the installation principle of TWFLD is presented. Secondly, when the fault occurs on one transmission line, the fault traveling waves travel from the fault point to the whole power grid, and the values of the arrival time of the initial traveling wave is recorded in the substations where the TWFLD are installed. Then the values of the arrival time are analyzed with the information fusion and the fault point is located by using the power grid fault traveling wave network location method. Compared to the existing fault traveling wave location schemes those are based on the fault information of only one line, all correct time information of the whole power grid has been used to calculate the fault distance in this method. Therefore, this method can achieve reliable fault location even when one or more TWFLD break down, startup fails or an incorrect arrival time of the initial traveling wave is recorded. The simulation results match the theoretical analysis well and show that the proposed location method provides not only high accuracy and reliability, but also good economy. These characteristics are beneficial to further enhancement of the practicability of the traveling wave location.
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DOI：
--
发表时间：
2002
期刊：
--
影响因子：
--
作者：
Cheng De-shu
通讯作者：
Cheng De-shu
影响因子：
4.4
作者：
H. Lee;A. Mousa
通讯作者：
H. Lee;A. Mousa
DOI：
10.1109/ptc.2003.1304372
发表时间：
2003-06
期刊：
2003 IEEE Bologna Power Tech Conference Proceedings,
影响因子：
--
作者：
Tutar Mustafa;D.W.P. Thomas;C. Christopoulos;A. Raizer
通讯作者：
Tutar Mustafa;D.W.P. Thomas;C. Christopoulos;A. Raizer
影响因子：
4.4
作者：
Magnago, FH;Abur, A
通讯作者：
Abur, A
影响因子：
4.4
作者：
A. Girgis;D. Hart;W. L. Peterson
通讯作者：
A. Girgis;D. Hart;W. L. Peterson