Behavior Analysis and Anomaly Detection for a Digital Substation on Cyber-Physical System

The electric power system infrastructure has begun to adopt digital information technologies such as transmission control protocol/internet protocol (TCP/IP) and Ethernet infrastructures. With this adoption, information technology-centric network and system management (NSM) tools are used to manage...

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Bibliographic Details
Published in:Electronics (Basel) 2019-03, Vol.8 (3), p.326
Main Authors: Kwon, YooJin, Lee, SangYoum, King, Ralph, Lim, Jong, Kim, Huy
Format: Article
Language:English
Subjects:
Anomalies
Communication
Communications systems
Communications technology
Cyber-physical systems
Cybersecurity
Distributed network protocols
Electric devices
Electric power
Electric power grids
Electric power systems
Electricity distribution
Electronic devices
Ethernet
Infrastructure
IP (Internet Protocol)
Manufacturers
Security systems
Smart grid technology
Software
Substations
TCP (protocol)
TCP/IP (protocol)
Technology utilization
Threat evaluation
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Summary:The electric power system infrastructure has begun to adopt digital information technologies such as transmission control protocol/internet protocol (TCP/IP) and Ethernet infrastructures. With this adoption, information technology-centric network and system management (NSM) tools are used to manage the intermediate communication systems and electric devices in digital substations. However, the technology to monitor the cyber–physical System (CPS) statistics for the intelligent electronic devices (IEDs) and serial communication for a digital substation does not exist yet. In this paper, we aim to propose cyber-physical analysis methodologies of a digital substation system, concerning issues of (1) International Electrotechnical Commission (IEC) 62351-7 based network and system management, (2) behavior analysis of the CPS, (3) cyber–physical anomaly detection systems, and (4) a testbed for a digital substation. By collaborating with Electric Power Research Institute (EPRI), a cyber security testbed for the digital substation has been developed to implement the use cases and analyze potential security threats. Newly integrated methodologies for information handling are expected to lead to improved safety and reliability for the CPS of electric power grid systems.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics8030326