摘要
文章提出一种综合抗干扰电压的线路参数测量新方法,该方法基于工频变向量法和并联补偿加压技术,采用单端测量π模型,计及线路分布参数特性,仅用单端测量数据就可得出线路阻抗和容抗间的相互影响。该方法采用变异系数作为判别测量结果是否可信的指标。对特高压交流输电线路工频参数的实测与计算结果表明,文中所提出的方法有效可行。
Based on power-frequency varying vector method and parallel compensatory voltage lift technology, a new approach to measure transmission-line parameters, that can resist interference voltage comprehensively, is proposed. As for the proposed method, using the π-shape model for one-terminal measurement and taking distributed parameter characteristic of transmission line into account, the interaction between impedance and capacitive reactance of transmission line can be determined by use of one-terminal measured data. In the proposed method, the variance coefficient is taken as the index to judge whether the measured result is creditable. Actual measured results and calculation results of power-frequency parameters of UHV AC transmission line show that the proposed method is feasible and effective.
出处
《电网技术》
EI
CSCD
北大核心
2009年第10期59-62,共4页
Power System Technology
关键词
工频变向量法
并联补偿加压技术
分布参数
单端测量π模型
变异系数
power-frequency varying vector method
parallel compensatory voltage lift technology
distributed parameters： n-shape mode/ for one-terminal measurement
variance coefficient
