Paper Info
Title
Detection and Mitigation of Cyber Attacks on Voltage Stability Monitoring of Smart Grids
Abstract
This paper investigates the possible cyber-physical attacks on voltage stability monitoring of a power transmission system. By considering a smart adversary that can launch a vector attack based on power flow equations, conventional voltage stability monitoring systems based on voltage stability indexes will fail to detect the instability issue. This can mislead the Power System Operator (PSO) to take inappropriate corrective action. In order to prevent and to combat such a malicious attack, a new indicator for efficient intrusion detection and a novel mitigation algorithm is proposed. This proposed detection algorithm employs the multi-port equivalent circuit of the power system to calculate the Thevenin Equivalent (TE) parameters. These TE parameters are then used to calculate an indicator, which reveals the attack on Phasor Measurement Unit (PMU) data. The proposed mitigation scheme then helps PSO to detect which PMU is under-attack. Furthermore, the amount of injected attack vectors is computed or estimated depending on the number of compromised PMUs. The effectiveness of the proposed techniques is demonstrated via illustrative case studies.
Year
DOI
Venue
2020
10.1109/TSG.2020.3004303
IEEE Transactions on Smart Grid
Keywords
DocType
Volume
Cyber-physical attack,voltage stability,wide-area measurement system,phasor measurement unit
Journal
11
Issue
ISSN
Citations 
6
1949-3053
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Mohsen Ghafouri114.74
Minh Au200.34
Marthe Kassouf363.53
Mourad Debbabi41467144.47
C. Assi535032.41
Jun Yan617913.72