电力信息物理系统建模和信息攻击机制分析  

Modeling of Cyber Power Physical System and Analysis of Information Attack Mechanism

作　　者：邓勇 彭敏放[1] 刘靖雯 DENG Yong;PENG Minfang;LIU Jingwen(College of Electrical and Information Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学电气与信息工程学院,长沙410082

出　　处：《电力系统及其自动化学报》2021年第10期10-17,共8页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(61973107,61472128)。

摘　　要：随着智能电网和能源互联网战略的推进,电力网的安全可靠运行越来越依赖信息网,对电力信息物理系统CPPS(cyber power physical system)合理建模具有十分重要的意义。本文从信息物理融合角度出发,将CPPS划分为电力层、信息层和耦合层三层架构。以信息流为主要视角,采用多元数据组构成的状态矩阵定量描述电力层信息,针对信息流传递方向的不同,将信息层分为信息上传、分析决策和信息下达三个过程分别建模。再以耦合矩阵关联电力层和信息层,建立以电力层状态量为“信源”和“信宿”的闭环一体化CPPS模型。简要分析了信息攻击风险在模型中的传播机制。最后,用IEEE 9节点和30节点系统定量推演信息流交互对电网运行状态的影响,验证模型的合理性。With the development of smart grid and the energy Internet strategy,the safe and reliable operation of power grid increasingly relies on information network,and the reasonable modeling of cyber power physical system(CPPS)is of significance.In this paper,from the perspective of cyber-physical integration,CPPS is divided into power,information and coupling layers.The information flow is taken as the main perspective,and the state matrix composed of multiple meta-data groups is used to describe the information in the power layer.Aimed at the direction of information flow transmission,the information layer is divided into information upload,analysis and decision-making,and information download,which are modeled,respectively.Then,the coupling matrix is used to associate the power and information layers,thus a closed-loop integrated CPPS model is established,with the state of the power layer as its“source”and“destination”.Moreover,the propagation mechanism of information attack risk in the model is also briefly analyzed.Finally,an IEEE 9-node system and an IEEE 30-node system are used to quantitatively derive the influence of information flow interaction on the operation state of power grid,which verifies the rationality of the proposed model.

关 键 词：电力信息物理系统 分层建模 信息交互 信息攻击 故障传播 

分 类 号：TM73[电气工程—电力系统及自动化]