曾江;蔡东阳;

• 1:华南理工大学电力学院

摘要(Abstract)：

针对电网中监测装置配备滞后、电压暂降水平亟待评估的问题,提出一种基于组合权重的蒙特卡洛评估方法。评估工作中,着重研究电网中线路短路故障对节点电压的影响。首先在考虑数据易获取性的基础上,构建涵盖线路自身属性及环境因素的故障概率评估体系,结合G1法和熵权法评估线路故障概率。该体系相比传统的评估体系,更加接近电网的真实工况,能够准确反映电网中短路故障的分布情况。运用该评估体系,构建故障数学模型,开发适用的BPA程序计算接口,可以对电网进行蒙特卡洛模拟仿真。研究结果对电网的改造和缓解装置的配备有指导性作用。最后以某特大城市的220 kV电网为例进行电压暂降评估,验证了方法的有效性。

关键词(KeyWords)： 电压暂降;组合权重;概率评估;电能质量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51177051)~~

作者(Author): 曾江;蔡东阳;

Email:

DOI: 10.13335/j.1000-3673.pst.2016.05.026

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