Cyber attackers can be anywhere with network access.
In addition, cyber intruders, compared to physical intrusion events, are hard to locate. This cyber intrusion event shows that attackers can damage a large-scale ICT network in a short time. This attack was enabled by a malware called BlackEnergy installed on the control center computers. More than ten thousand homes and facilities experienced a power outage for hours, even days. As a result, vulnerabilities with respect to cyber intrusions also become a serious concern.Ī massive cyber attack occurred on Ukraine’s power system in December 2015. These remote control and monitoring technologies are based on information and communications technology (ICT).
Due to the installation of intelligent electronic devices (IEDs) on power grids, power system operators are able to monitor and control a power system from a remote control center. IntroductionĪ primary purpose of the smart grid is to deploy digital communication networks (e.g., Ethernet, cellular service and satellite signal) to enable data acquisition and remote control between control centers and the large number of power grid facilities (e.g., substations and power plants). Keywords: cyber security cyber-physical system intrusion detection testbed smart grid 1. A test case is provided in this paper to demonstrate how a testbed helps the study of cyber security and the anomaly detection system (ADS) for substations. At Washington State University (WSU), the Smart City Testbed (SCT) has been developed to provide a platform to test, analyze and validate defense mechanisms against potential cyber intrusions. In this paper, a survey of the state-of-the-art is conducted on the cyber security of the power grid concerning issues of: (1) the structure of CPSs in a smart grid (2) cyber vulnerability assessment (3) cyber protection systems and (4) testbeds of a CPS. As a result, the level of connectivity has become much higher, and cyber security also becomes a potential threat to the cyber-physical systems (CPSs). A primary purpose of the smart grid is to significantly increase the capability of computer-based remote control and automation. Published by Chih-Che Sun 1, Chen-Ching Liu 1, 2 and Jing Xie 1, *ġ School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164,Ģ Visiting Professor, School of Mechanical and Materials Engineering, University College Dublin, Belfield,Īcademic Editors: Alfredo Vaccaro and Jin (Wei) KocsisĪs part of the smart grid development, more and more technologies are developed and deployed on the power grid to enhance the system reliability.
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