On modeling of electrical cyber-physical systems considering cyber security  

作　　者：Yi-nan WANG Zhi-yun LIN Xiao LIANG Wen-yuan XU Qiang YANG Gang-feng YAN 

机构地区：[1]College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China [2]Smart Grid Research Institute, State Grid, Beijing 102209, China

出　　处：《Frontiers of Information Technology & Electronic Engineering》2016年第5期465-478,共14页信息与电子工程前沿（英文版）

基　　金：Project supported by the National Basic Research Program(863)of China(No.2015AA05002);the National Natural Science Foundation of China(No.61471328);the Science and Technology Project of State Grid,China(No.XXB17201400056)

摘　　要：This paper establishes a new framework for modeling electrical cyber-physical systems(ECPSs),integrating both power grids and communication networks. To model the communication network associated with a power transmission grid, we use a mesh network that considers the features of power transmission grids such as high-voltage levels, long-transmission distances, and equal importance of each node. Moreover, bidirectional links including data uploading channels and command downloading channels are assumed to connect every node in the communication network and a corresponding physical node in the transmission grid. Based on this model,the fragility of an ECPS is analyzed under various cyber attacks including denial-of-service(Do S) attacks, replay attacks, and false data injection attacks. Control strategies such as load shedding and relay protection are also verified using this model against these attacks.This paper establishes a new framework for modeling electrical cyber-physical systems （ECPSs）, integrating both power grids and communication networks. To model the communication network associated with a power transmission grid, we use a mesh network that considers the features of power transmission grids such as high-voltage levels, long-transmission distances, and equal importance of each node. Moreover, bidirectional links including data uploading channels and command downloading channels are assumed to connect every node in the communication network and a corresponding physical node in the transmission grid. Based on this model, the fragility of an ECPS is analyzed under various cyber attacks including denial-of-service （DOS） attacks, replay attacks, and false data injection attacks. Control strategies such as load shedding and relay protection are also verified using this model against these attacks.

关 键 词：Cyber-physical systems Cyber attacks Cascading failure analysis Smart grid 

分 类 号：TM76[电气工程—电力系统及自动化] TP393.08[自动化与计算机技术—计算机应用技术]