李振兴;张健婷;陈艳霞;翁汉琍;吕立平;

• 1:三峡大学电气与新能源学院
• 2:国网北京市电力公司电力科学研究院

摘要(Abstract)：

T型线路改变了线路的非均匀性,因此提高其故障测距精度历来是研究热点。为解决参数误差对测距精度的影响,利用系统正常运行状态下的电气信息,动态实时计算线路参数,并基于遗传算法修正参数的误差。进一步在此基础上,提出了一种沿线电压交叉修正故障测距方法。基于分布参数线路模型,分析输电线路的沿线电压幅值分布规律,并结合直线交叉原理进行故障支路预判与故障测距初判,进而通过少数次迭代和校正,达到故障测距的高精度定位。仿真分析结果表明,该算法测距原理简单,迭代次数少,收敛速度快,且测距精度不受故障类型、故障电阻及负荷等的影响。

关键词(KeyWords)： T型输电线路;参数调节;故障测距;直线交叉

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51607106);; 湖北省教育厅科学技术研究计划重点项目(D20171203)~~

作者(Author): 李振兴;张健婷;陈艳霞;翁汉琍;吕立平;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.0690

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