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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yichi Zhang Yingmeng Xiang Lingfeng Wang |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH, USA (Yichi Zhang; Yingmeng Xiang; Lingfeng Wang) |
| Abstract | As information and communication networks are highly interconnected with the power grid, cyber security of the supervisory control and data acquisition (SCADA) system has become a critical issue in the power system. By intruding into the SCADA system via the remote access points, the attackers are able to eavesdrop critical data and reconfigure devices to trip the system breakers. The cyber attacks are able to impact the reliability of the power system through the SCADA system. In this paper, six cyber attack scenarios in the SCADA system are considered. A Bayesian attack graph model is used to evaluate the probabilities of successful cyber attacks on the SCADA system, which will result in breaker trips. A forced outage rate (FOR) model is proposed considering the frequencies of successful attacks on the generators and transmission lines. With increased FOR values resulted from the cyber attacks, the loss of load probabilities (LOLP) in reliability test system 79 (RTS79) are estimated. The results of the simulations demonstrate that the power system becomes less reliable as the frequency of successful attacks increases. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 414166 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479964154 |
| DOI | 10.1109/PESGM.2014.6939397 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-07-27 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | SCADA systems Substations Bayes methods Generators Power system reliability Reliability loss of load probability Cyber security power system reliability cyber-physical power systems Bayesian attack graph model SCADA system forced outage rate |
| Content Type | Text |
| Resource Type | Article |
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