| 摘要: |
| 基于图论无尺度图的分析方法，提出了一种电网脆弱性分析的新方法，对复杂网络的脆弱性进行评估。构建了无尺度图的解析模型，把系统的所有状态变量处理成有向图中的节点，并给出了相关参数的定义及计算方法，弥补了电网脆弱性分析只考虑网络结构，没有结合状态参数的不足，因此能更好地揭示电网的脆弱环节。通过对IEEE57节点系统计算分析，验证了该方法的合理性与有效性，为电力系统的规划设计及安全运行维护提供保证。 |
| 关键词: 电网脆弱性 网络拓扑 图论 无尺度图 |
| DOI：10.7667/j.issn.1674-3415.2014.12.014 |
| 投稿时间：2013-12-12 |
| 基金项目:吉林省科技发展计划重点科技攻关项目（20130206083SF） |
|
| A new method of power system vulnerability analysis |
| XU Zheng-xun,ZHANG Wei-min |
| (Xuji Transformer Co., Ltd, Xuchang 461000, China;Power Education Center of Yunnan Power Grid Corporation, Kunming 650204, China) |
| Abstract: |
| A new method of power system vulnerability analysis is proposed, which is based on the scale-free graph of graph theory to evaluate the vulnerability of complex network. A new analytical model of scale-free graph is constructed, all the state variables of the system is treated as a node in a directed graph, and the definition of the relevant parameters and calculation methods are given, to make up for the the deficiency of power grid vulnerability analysis that considers only the network structure and not combines state parameters, thus the grid vulnerabilities can be revealed better. IEEE57 node system is analyzed and calculated, research shows that the proposed method is correct and effective, ensuring the power system planning and design and the safe operating and maintenance. |
| Key words: vulnerability analysis network topology graph theory scale-free graph |
