A preliminary study of power system reliability evaluation considering cyber attack effects

Author

Yichi Zhang ; Lingfeng Wang ; Weiqing Sun

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH, USA

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

As various novel smart grid technologies are being developed and deployed, the power system is becoming more vulnerable to malicious cyber attacks as it is more open to users. The reliability of the power system can be impacted by diverse types of attacks on its components. This paper deals with the impact of power system reliability due to the cyber attacks. 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 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 35 scenarios with different numbers of attacks. The simulation results showed that the reliability of the power system becomes worse as the number of attacks increases.

Keywords

power system reliability; power system security; probability; smart power grids; FOR model; LOLP curves; cyber attack effects; forced outage rate; generator reliability characteristic; loss of load probability curve; power system reliability evaluation; smart grid technology; transmission lines; Analytical models; Generators; Power grids; Power system reliability; Power transmission lines; Reliability; cyber security; forced outage rate; loss of load probability; power system reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6672737

Filename

6672737