On modeling of electrical cyber-physical systems considering cyber security

• Published in: Frontiers of information technology & electronic engineering Vol. 17; no. 5; pp. 465 - 478
• Main Authors: Wang, Yi-nan, Lin, Zhi-yun, Liang, Xiao, Xu, Wen-yuan, Yang, Qiang, Yan, Gang-feng
• Format: Journal Article
• Language: English
• Published: Hangzhou Zhejiang University Press 01.05.2016; Springer Nature B.V
• Subjects: Channels; Communication networks; Communications Engineering; Computer Hardware; Computer Science; Computer Systems Organization and Communication Networks; Cyber-physical systems; Cybersecurity; Denial of service attacks; Electrical Engineering; Electronics and Microelectronics; Finite element method; Fragility; Instrumentation; Load shedding; Modelling; Networks; Nodes; 建模框架; 物理系统; 电力传输网; 电气网络; 网络安全; 网络攻击; 脆弱性分析; 通信网络; Cyber-physical systems; Cyber attacks; TP11; Smart grid; TM711; Cascading failure analysis
• ISSN: 2095-9184; 2095-9230
• DOI: 10.1631/FITEE.1500446

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.