Title :
Investigating the impact of cyber attacks on power system reliability
Author :
Yichi Zhang ; Lingfeng Wang ; Weiqing Sun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH, USA
Abstract :
As power grids rely more on the open communication technologies and supervisory control and data acquisition (SCADA) system, they are becoming more vulnerable to malicious cyber attacks. The reliability of the power system can be impacted by the SCADA system due to a diverse set of probable cyber attacks on it. This paper deals with the impact of cyber attacks on power system reliability. A forced outage rate (FOR) model is proposed considering the impacts of cyber attacks on the reliability characteristic of generators and transmission lines. Different occurrences of the cyber attacks targeting the SCADA system lead to different effects on the FOR values. The loss of load probabilities (LOLP) curves in two reliability test systems are simulated based on 10 different types of attacks in the SCADA system. The simulation results illustrate that the reliability of the power system decreases as the effects of cyber attacks on SCADA become severe.
Keywords :
SCADA systems; power engineering computing; power grids; power system reliability; probability; transmission lines; FOR model; LOLP curves; SCADA system; cyber attacks; forced outage rate; loss of load probabilities; open communication technologies; power grids; power system reliability; supervisory control and data acquisition system; transmission lines; Computer crime; Generators; Grippers; Power system reliability; Power transmission lines; SCADA systems; SCADA system; cyber security; forced outage rate; loss of load probability; power system reliability;
Conference_Titel :
Cyber Technology in Automation, Control and Intelligent Systems (CYBER), 2013 IEEE 3rd Annual International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4799-0610-9
DOI :
10.1109/CYBER.2013.6705490
