基于可靠性加权拓扑模型下的电网脆弱性评估模型

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摘要在考虑元件可靠性参数的同时, 结合复杂网络理论的结构分析, 对电网的脆弱强度进行评估。提出了基于元件可靠性参数的加权电网拓扑模型；给出了加权后相应复杂网络参数的定义与计算方法及考虑经济性的结构脆弱后评估新指标；由此, 提出了结合参数脆弱性与结构脆弱性的电网脆弱性评估模型。算例结果表明所提模型有效克服了考察角度单一的弊端, 在保持了复杂网络理论对结构脆弱性有较好辨识能力的基础上, 对电网薄弱环节进行准确定位, 提高了脆弱辨识精度, 可为电网安全运行维护及改造提供参考, 验证了模型的合理性及有效性。

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	魏震波
	刘俊勇
	朱国俊
	朱康
	刘友波
	王民昆

关键词 ：参数脆弱性, 可靠性, 结构脆弱性, 复杂网络理论, 小世界理论, 脆弱性评估模型

Abstract：Combining running parameters based on reliability and structural analysis based on complex network theory, a new vulnerability evaluation model to power grid is proposed in this paper. Weighted topological model based on the reliability parameter is established, and definitions and calculations of corresponding characteristic indices of the weighted topological model are given, and a new post-evaluation structural vulnerability index considering economic factor is presented. Based upon all, the evaluation model integrating parametric vulnerability and structural vulnerability to power grid is presented. Results of a numerical example show that the model effectively overcomes the insufficiency of methods assessing in simplex aspect, and it keeps a good ability of small-world theory in structure vulnerability identification, and has a preferable ability and precision in distinguishing vulnerable part of power grid. So it can be a reference to power grid maintenance and reconstruction. Meanwhile, it is verified that the proposed method is rational and available.

Key words： Parametric vulnerability reliability structural vulnerability complex network theory small-world theory vulnerability evaluation model

收稿日期: 2008-12-16 出版日期: 2014-03-04

PACS:

TM732

作者简介: 魏震波男, 1978年生, 博士研究生, 从事电力系统稳定与控制及电力市场研究。刘俊勇男, 1963年生, 教授, 博士生导师, 从事电力系统稳定与控制及电力市场研究。

引用本文:

魏震波, 刘俊勇, 朱国俊, 朱康, 刘友波, 王民昆. 基于可靠性加权拓扑模型下的电网脆弱性评估模型[J]. 电工技术学报, 2010, 25(8): 131-137. Wei Zhenbo, Liu Junyong, Zhu Guojun, Zhu Kang, Liu Youbo, Wang Minkun. Vulnerability Evaluation Model to Power Grid Based on Reliability-Parameter-Weighted Topological Model. Transactions of China Electrotechnical Society, 2010, 25(8): 131-137.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2010/V25/I8/131

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