Title
Hidden Attacks on Power Grid: Optimal Attack Strategies and Mitigation.
Abstract
Real time operation of the power grid and synchronism of its different elements require accurate estimation of its state variables. Errors in state estimation will lead to sub-optimal Optimal Power Flow (OPF) solutions and subsequent increase in the price of electricity in the market or, potentially overload and create line outages. This paper studies hidden data attacks on power systems by an adversary trying to manipulate state estimators. The adversary gains control of a few meters, and is able to introduce spurious measurements in them. The paper presents a polynomial time algorithm using min-cut calculations to determine the minimum number of measurements an adversary needs to manipulate in order to perform a hidden attack. Greedy techniques are presented to aid the system operator in identifying critical measurements for protection to prevent such hidden data attacks. Secure PMU placement against data attacks is also discussed and an algorithm for placing PMUs for this purpose is developed. The performances of the proposed algorithms are shown through simulations on IEEE test cases.
Year
Venue
Field
2014
CoRR
Electricity market,Synchro,State vector,Computer science,Computer security,Electric power system,State variable,SCADA,Blackout,Grid
DocType
Volume
Citations 
Journal
abs/1401.3274
0
PageRank 
References 
Authors
0.34
5
3
Name
Order
Citations
PageRank
Deepjyoti Deka16816.63
Ross Baldick232242.22
Sriram Vishwanath34185445.45