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电网技术  2015 

双网耦合模型中基于级联失效的节点重要度评估

DOI: 10.13335/j.1000-3673.pst.2015.04.027, PP. 1053-1058

Keywords: 耦合模型,级联失效,负载重分配,节点重要度

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Abstract:

电网与信息通信(informationandcommunicationtechnology,ICT)网的关联程度不断增强,网络节点的重要度评估需要考虑双网的耦合特性。为此,针对传统单一网络节点重要度评估算法在关联性方面的不足,提出一种考虑级联失效的耦合网络节点重要度评估方法,并以电网和ICT网拓扑关联关系为基础建立了双网耦合模型。该方法从带负载耦合网络出发,在级联失效过程中加入负载因素,引入最大负载分支,采用相邻节点平均负载均衡度和网络负载率参数融合方法衡量失效节点对网络的影响,从而判断耦合网络节点的重要度,避免了单一指标在单个网络中度量节点重要性的局限性。采用IEEE30节点系统构建耦合网络仿真模型,并与节点收缩法和Max-Cas算法进行了对比,结果表明所提方法在鉴别触发级联失效节点的基础上更细致地区分耦合网络中各节点重要度差异。

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