DocumentCode :
2633837
Title :
Distributed joint cyber attack detection and state recovery in smart grids
Author :
Tajer, Ali ; Kar, Soummyar ; Poor, H. Vincent ; Cui, Shuguang
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
fYear :
2011
fDate :
17-20 Oct. 2011
Firstpage :
202
Lastpage :
207
Abstract :
Dynamic state estimation in power systems plays a central role in controlling the system operations. State estimation, however, is vulnerable to malicious cyber attacks that contaminate the controller´s observation through injecting false data into the system. It is, therefore, of paramount significance not only to detect the attacks, but also to recover the system state from the contaminated observation when an attack is deemed to be present. This paper offers a distributed framework for an optimal such joint attack detection and system recovery. This framework has two main features: 1) it provides the network operator with the freedom of striking any desired balance between attack detection and state recovery accuracies, and 2) it is distributed in the sense that different controlling agents distributed across the network carry out the attack detection and system recovery tasks through iterative local processing and message passing.
Keywords :
computer network security; message passing; power engineering computing; power system security; smart power grids; system recovery; contaminated observation; controller observation; controlling agent; distributed framework; dynamic state estimation; false data; iterative local processing; joint cyber attack detection; malicious cyber attacks; message passing; network operator; smart grids; state recovery; system operation; Joints; Noise; Reliability; Sensors; State estimation; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Smart Grid Communications (SmartGridComm), 2011 IEEE International Conference on
Conference_Location :
Brussels
Print_ISBN :
978-1-4577-1704-8
Electronic_ISBN :
978-1-4577-1702-4
Type :
conf
DOI :
10.1109/SmartGridComm.2011.6102319
Filename :
6102319
Link To Document :
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