张科;朱永利;郑艳艳;刘帅;

• 1:华北电力大学电气与电子工程学院

摘要(Abstract)：

为解决目前多分支混合配电线路的故障定位问题,提出一种基于冗余度参数估计的方法。应用终端同步信息构造冗余度传输方程组,基于统计学理论,采用参数估计求解传输方程组进行故障定位。利用行波信息构建故障分支判据,解决了T节点附近故障时的分支误判难题。该方法无需波速计算,且高效的信息利用度和参数估计理论在最大限度上减小了误差。此外,引入长度系数,解决了因线路弧垂效应导致的误差增大问题。通过PSCAD/EMTDC仿真验证了所提方法的可行性。

关键词(KeyWords)： 配电网;故障定位;参数估计;冗余度;最小二乘法;混合线路

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51677072);; 中央高校基本科研业务资费专项金资助(2017XS118)~~

作者(Author): 张科;朱永利;郑艳艳;刘帅;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0645

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