电网脆弱性综合指标建立与评估

doi:10.3969/j.issn.1000-7229.2015.08.015

摘要/Abstract

摘要：

为评估节点故障对电网的静态性能的影响，构建了一种基于复杂网络理论的电网脆弱性综合评价指标。在由最大连通子集与网络平均效率组成的结构脆弱性指标，以及由失负荷比例与电网功率传输效率组成的功能脆弱性指标的基础上，构建了一种基于熵值模糊综合评价法的脆弱性综合指标。该方法克服了多种指标赋权时，主观性强、容易出现与实际数据不相符的现象。最后通过对IEEE-118节点系统的仿真、分析，比较了随机、节点度、节点电气介数、传统线路介数以及线路电气介数5种不同的攻击对电网的脆弱性综合指标、各个单一指标的影响，同时验证了该综合指标的合理性。

关键词: 复杂网络模型, 脆弱性综合指标, 熵值模糊综合评价法, IEEE-118

Abstract:

To assess the impact of node-fault on the static performance of power grid, this paper proposed the vulnerability comprehensive index for power grid based on the complex network theory. This paper constructed the structural vulnerability index consisting of the largest connected subset and the average efficiency of the network, as well as the functional vulnerability index consisting of the proportion of the loss load and the grid power transmission efficiency. On this basis, this paper proposed a vulnerability comprehensive index based on the entropy value fuzzy comprehensive assessment method, which could overcome the strong subjectivity and the inconsistency with the real data when its vulnerability indexes were empowered. Finally, the numerical simulations and analyses for the attacks: random, node degree, node electrical betweenness, traditional line betweenness and line electrical betweenness, were investigated based on the IEEE-118 bus system respectively. The impacts of these five types of attacks on the grid comprehensive vulnerability index and every single index were analyzed, meanwhile, the rationality of the comprehensive index was verified.

Key words: complex network model, vulnerability comprehensive index, entropy value fuzzy comprehensive assessment method, IEEE-118

中图分类号:

TM 711

韩泽文，苏永清，岳继光，张鲲鹏. 电网脆弱性综合指标建立与评估[J]. 电力建设, 2015, 36(8): 89-94.

HAN Zewen, SU Yongqing, YUE Jiguang, ZHANG Kunpeng. Establishment and Assessment of Power Grid Vulnerability Comprehensive Index[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(8): 89-94.

参考文献

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