Analysis and Simulation of Typical Anti-interference Measuring Methods for Zero Sequence Impedance Parameters of Transmission Lines

被引：0
|
作者：
Hu Z. [1 ]
Fu C. [1 ]
Ni S. [1 ]
Luo F. [1 ]
机构：
[1] School of Electrical Engineering, Wuhan University, Wuhan
来源：
Hu, Zhijian (zhijian_hu@163.com) | 2018年 / Automation of Electric Power Systems Press卷 / 42期
关键词：
Anti-interference methods; Electromagnetic coupling; Measurement error; Transmission line; Zero sequence impedance parameters;
D O I：
10.7500/AEPS20180309006
中图分类号：
学科分类号：
摘要：
The interference caused by strong electromagnetic coupling between transmission lines seriously affects the measurement accuracy of impedance parameters of transmission line. Firstly, the characteristics and error sources of five typical zero sequence parameter anti-interference measurement methods for transmission lines are analyzed. The measurement models of the five typical measurement methods are established by using PSCAD, and their measurement errors are simulated separately. The influence of different conditions on the measurement results of five typical measurement methods is analyzed. Then, two typical strong interference environments are set up, and five anti-interference measurement methods are used to measure, respectively. By the comparison of the simulation results, the order of the measurement errors of the five anti-interference methods in the two cases is obtained. Finally, the effect of the measuring instrument resolution on the measurement methods is analyzed when the measured line is withdrawn from normal operation and under normal operation, respectively. The results of this study can provide a reference for the selection of anti-interference measurement methods for transmission line impedance parameters in strong interference environment. © 2018 Automation of Electric Power Systems Press.
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页码：174 / 183
页数：9
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