基于电力系统复杂网络特征的线路脆弱性风险分析

发布时间：2018-01-13 01:20

本文关键词：基于电力系统复杂网络特征的线路脆弱性风险分析　出处：《电力自动化设备》2014年02期 　论文类型：期刊论文

【摘要】：提出了一种从电力系统复杂网络特征角度分析线路脆弱性风险的方法。该方法首先采用自下而上的层次聚类法挖掘线路脆弱性的层次风险,并以电力系统的复杂网络特征为条件属性,以电力系统线路脆弱性为决策属性,建立系统样本决策表;然后采用基于贪婪启发式算法的ID3决策树数据挖掘法,建立线路脆弱性的精细化决策表;最后根据决策树建立电力系统线路脆弱性的层次风险模型,各层次所含线路的脆弱性风险与层次聚类法所得层次风险水平一致。IEEE 39节点算例结果表明电力系统复杂网络特征的分布情况决定了系统脆弱性线路风险大小。
[Abstract]:This paper presents a method to analyze the line vulnerability risk from the point of view of the power system complex network characteristics. Firstly, the bottom-up hierarchical clustering method is used to mine the line vulnerability level risk. Taking the complex network characteristics of power system as the conditional attribute and the power system line vulnerability as the decision attribute, the system sample decision table is established. Then the ID3 decision tree data mining method based on greedy heuristic algorithm is used to establish the detailed decision table of line vulnerability. Finally, the hierarchical risk model of power system line vulnerability is established according to the decision tree. The vulnerability risk of the lines contained at each level is consistent with the hierarchical risk level obtained by hierarchical clustering method. IEEE. The results of 39 bus examples show that the distribution of complex network features determines the vulnerability of the system.
【作者单位】：东南大学电气工程学院;
【基金】：国家自然科学基金资助项目(51277028)~~
【分类号】：TM711
【正文快照】： 0引言现代电力系统是一个复杂的网络系统。电力系统连锁故障以及大停电事故,如系统失步、过负荷、电压异常等的发生一般不是由一个简单原因引起,而是一系列因素相互影响、发展及扩大的后果[1-2]。现有文献采用风险理论从不同角度分析了电力系统连锁故障发生的概率水平,如系统

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