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基于效用风险熵权模糊综合评判的复杂电网节点脆弱性评估

, PP. 214-223

Keywords: 复杂电网,效用风险熵,效用风险熵权,模糊综合评判,节点脆弱性评估

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Abstract:

电力系统脆弱性评估是当前的热点研究问题。目前基于复杂网络理论的电网元件脆弱性评估都是从社会网络分析方法或系统科学分析方法出发,从不同方面对具有不同拓扑结构特性的电网元件进行描述,所得结果不够全面。以电网节点为研究对象,提出基于效用风险熵权模糊综合评判的电网节点脆弱性评估方法。综合考虑节点客观数据信息和节点价值系数得到效用风险熵权,应用层次分析法将主观定性结论定量化,得到专家权重,两种权重通过合理方式形成综合权重。对节点脆弱性采取三种评价方式,实现对节点脆弱性的完全排序和分类。该方法不仅可以应用于不同类型的指标体系,而且便于扩展,以新英格兰10机39节点为例验证了该方法的合理性和有效性。

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