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Appl. Sci. 2018, 8(5), 768;

Vulnerability Assessment of Electrical Cyber-Physical Systems against Cyber Attacks

College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Huanan Industrial Technology Research Institute of Zhejiang University, Guangzhou 510535, China
Zhejiang Province Marine Renewable Energy Electrical Equipment and System Technology Research Laboratory, Zhejiang University, Hangzhou 310007, China
Author to whom correspondence should be addressed.
Received: 16 April 2018 / Revised: 29 April 2018 / Accepted: 9 May 2018 / Published: 11 May 2018
(This article belongs to the Special Issue Security and Privacy for Cyber Physical Systems)
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The integration of modern computing and advanced communication with power grids has led to the emergence of electrical cyber-physical systems (ECPSs). However, the massive application of communication technologies makes the power grids become more vulnerable to cyber attacks. In this paper, we study the vulnerability of ECPSs and develop defence strategies against cyber attacks. Detection and protection algorithms are proposed to deal with the emergency of cascading failures. Moreover, we propose a weight adjustment strategy to solve the unbalanced power flows problem which is caused by splitting incidents. A MATLAB-based platform with advantages of easy programming, fast calculation, and no damage to systems is built for the offline simulation and analysis of the vulnerability of ECPSs. We also propose a five-aspect method of vulnerability assessment which includes the robustness, economic costs, degree of damage, vulnerable equipment, and trip point. The study is of significance to decision makers as they can get specific advice and defence strategies about a special power system. View Full-Text
Keywords: electrical cyber-physical system; protection procedure; vulnerability assessment; simulation platform electrical cyber-physical system; protection procedure; vulnerability assessment; simulation platform

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Wang, Y.; Yan, G.; Zheng, R. Vulnerability Assessment of Electrical Cyber-Physical Systems against Cyber Attacks. Appl. Sci. 2018, 8, 768.

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