摘要
提出一种基于双端故障信息的单端测距法,即当故障距离在中点之前,用M端故障量进行测距,当故障距离超过中点,用N端故障信息进行测距。此法基于数学形态学滤波,再采用形态学梯度提取故障时刻的方法,能准确提取故障点的时刻。本文采用PSCAD/EMTDC进行建模仿真,用MATLAB进行数据处理。实验结果表明,该方法测距原理简单,设备投入少,准确度较高。
This paper proposes a two-terminal Single-ended fault information ranging method, that is, when the fault before the midpoint of the distance, with the amount ranging M terminal fault, when the fault distance than the midpoint, with the N-terminal fault for ranging information. This method is based on mathematical morphology filter, and then using morpho-logical gradient method to extract fault time, and can accurately extract the time point of failure. In this paper, PSCAD/EM-TDC simulation modeling, data processing using MATLAB. Experimental results show that this method ranging principle is simple, less equipment investment, high degree of accuracy.
出处
《科技通报》
北大核心
2015年第12期202-205,262,共5页
Bulletin of Science and Technology
基金
河南省教育厅高等学校重点科研项目(15A470019)
河南省科技厅计划项目(142102210292)
许昌市科技发展计划项目(1502091)
