| 基于改进结构熵的电力信息物理系统脆弱性分析 |
| |
| 引用本文： | 李龙,李振文,刘颖,肖振锋,蔡晔,刘放. 基于改进结构熵的电力信息物理系统脆弱性分析[J]. 电力信息与通信技术, 2021, 0(2): 1-6 |
| |
| 作者姓名： | 李龙 李振文 刘颖 肖振锋 蔡晔 刘放 |
| |
| 作者单位： | 国网湖南省电力有限公司调度控制中心;长沙理工大学电气与信息工程学院;国网湖南省电力有限公司经济技术研究院 |
| |
| 基金项目： | 国家自然科学基金联合基金项目(No.U1966207);湖南省自然科学基金项目(No.2020JJ5573);国家重点研发计划项目(2018YFB0904903)。 |
| |
| 摘 要： | 随着电网与信息网的不断融合,考虑两网之间交互关系的电力信息物理系统脆弱性分析对保障电力系统稳定运行具有重要的实用价值.文章基于复杂网络理论,建立了电力信息物理系统拓扑模型,并提出了一种综合考虑节点差异性、边差异性和节点相依关系的电力信息物理系统拓扑改进结构熵指标.该指标可克服单层网络结构熵指标的局限性,并能识别电力信息...
|
| 关 键 词： | 电力信息物理系统 相依关系 改进结构熵 连锁故障 |
Vulnerability Analysis of Power Cyber Physical System Based on Improved Structural Entropy |
| |
| LI Long,LI Zhenwen,LIU Ying,XIAO Zhenfeng,CAI Ye,LIU Fang. Vulnerability Analysis of Power Cyber Physical System Based on Improved Structural Entropy[J]. Electric Power Information and Communication Technology, 2021, 0(2): 1-6 |
| |
| Authors: | LI Long LI Zhenwen LIU Ying XIAO Zhenfeng CAI Ye LIU Fang |
| |
| Affiliation: | (Dispatching Control Center,State Grid Hunan Electric Power Co.,Ltd.,Changsha 410004,China;College of Electrical and Information Engineering,Changsha University of Technology,Changsha 410114,China;Hunan Key Laboratory of Energy Internet Supply-demand and Operation,State Grid Hunan Electric Power Company Limited Economic&Technical Research Institute,Changsha 410004,China) |
| |
| Abstract: | With the continuous integration of power grid and information network,the vulnerability analysis of power cyber physical system considering the interaction between two networks has important practical value to ensure the stable operation of power system.In this paper,based on the complex network theory,a topological model of power cyber physical system is established,and an entropy index of topological structure of power cyber physical system is proposed,which takes into account the differences of nodes,edge differences and node dependencies.This index can overcome the limitation of the entropy index of single-layer network structure and identify the influence of important nodes in the power cyber physical system on the vulnerability.Taking a provincial power cyber physical system as an example,the simulation results show that the dependent network is more fragile than the single network,and nodes with high betweenness and high degree play a key role in maintaining the operation of the system,and if a few nodes with low degree and low betweenness fail,the robustness of the system will be reduced. |
| |
| Keywords: | power cyber physical system the dependence relationship improved structural entropy cascading failure |
| 本文献已被 维普 等数据库收录！ |
|
