摘要
为获得用于直流输电系统计算和保护整定相关的直流输电线路参数,提出了对直流线路阻抗频率特性进行测试的单端相位法.该方法采用传输线分布参数模型,通过物理模型试验对单端相位法测试原理和抗干扰能力进行了验证,对影响测试的误差因素进行了讨论.现场测试结果表明,单端相位法能够消除现场电磁干扰的影响,获得正确的直流输电线路阻抗频率特性.
To obtain a DC transmission line parameters related to high voltage DC transmission system calculation and protection setting,a single-ended phase method for testing DC line impedance frequency characteristics is proposed.The principle and the anti-interference capability of single-ended phase method are verified by physical model test; and the factors that affect the test error are discussed.Field test results show that the single-ended phase method can eliminate the influence of electromagnetic interference,and obtain the right DC transmission line frequency characteristics.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2014年第6期825-828,共4页
Engineering Journal of Wuhan University
关键词
直流输电线路
阻抗频率特性
单端相位法
DC transmission line
impedance frequency characteristics
single-ended phase method
