引用本文:徐立新,杨建梅,姚灿中,王世华.基于加权网络模型的电网连锁故障分析[J].控制理论与应用,2011,28(11):1607~1612.[点击复制]
XU Li-xin,YANG Jian-mei,YAO Can-zhong,WANG Shi-hua.Analysis of cascading failures in power grids based on weighted network model[J].Control Theory and Technology,2011,28(11):1607~1612.[点击复制]
基于加权网络模型的电网连锁故障分析
Analysis of cascading failures in power grids based on weighted network model
摘要点击 2840  全文点击 1884  投稿时间：2011-01-25  修订日期：2011-05-12
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DOI编号  10.7641/j.issn.1000-8152.2011.11.CCTA110117
  2011,28(11):1607-1612
中文关键词  电力网络  连锁故障  复杂网络  加权网络
英文关键词  power grid  cascading failure  complex networks  weighted networks
基金项目  国家自然科学基金资助项目(70773041); 中央高校基本科研业务费专项资金资助项目(2011ZB0011).
作者单位E-mail
徐立新* 华南理工大学 经济与贸易学院
华南理工大学 工商管理学院 		xulixin@scut.edu.cn 
杨建梅 华南理工大学 工商管理学院  
姚灿中 华南理工大学 经济与贸易学院  
王世华 广东石油化工学院 信息与计算科学系  
中文摘要
      本文基于复杂网络理论提出了一种评估电网发生连锁故障的新方法, 运用复杂网络理论来分析电网有助于从电网架构上研究连锁故障. 首先, 以输电线路和变压器的阻抗模值为边权构建了电网加权拓扑模型, 并给出评价电网中心性的指标; 其次, 基于线路断开瞬间线路传输功率优先分配到邻近线路的原则, 提出评估电网发生连锁故障的阈值模型; 最后, 以IEEE 118节点系统为例, 通过计算反映其中心性的指标值, 找出了IEEE 118节点系统的中心节点, 验证了加权拓扑模型在反映节点中心性方面优于无权拓扑模型, 与实际网路也更接近. 在此基础上, 针对四种攻击网络的典型模式, 运用阈值模型计算该系统发生连锁故障的临界阈值, 揭示了电网发生连锁故障的机理.
英文摘要
      A new method for the assessment of cascading failures in power grids is presented. This method is helpful to investigating cascading failures from the configuration of power grids by using complex networks theory. The topological model of power grids is established by defining the impedance of transmission lines and transformers as connection weights. The indices of centrality characteristics of power grids are given. The critical threshold model of cascading failures in power grids is explored based on the principle that a failed edge causes redistribution of instant power flow only to its neighboring edges. Taking IEEE 118-bus test system as example, we find its central vertexes by calculating those indices of centrality characteristics of power grids. The weighted model is more efficient than conventional ones in exhibiting vertexes, and closer in characteristics to real transmission grids. By using the system threshold model, we calculate the threshold value of cascading failure in grids under four typical attacking modes, revealing the mechanism of cascading failures.