Reliability Assessment of Smart Grids Considering Indirect Cyber-Power Interdependencies

The operation of power systems now relies on extensive applications of digital communication systems, known as cyber networks. These applications are categorized as having either direct or indirect interactions between cyber and power networks. We previously studied direct interdependencies inside c...

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Bibliographic Details
Published in:IEEE transactions on smart grid Vol. 5; no. 4; pp. 1677 - 1685
Main Authors: Falahati, Bamdad, Yong Fu
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.07.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Circuit faults
Cyber-physical interdependency
Electricity generation
Maintenance engineering
Monitoring
power system monitoring and protection
Power system reliability
Power system stability
Reliability
ISSN:1949-3053, 1949-3061
Online Access:Get full text
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Summary:The operation of power systems now relies on extensive applications of digital communication systems, known as cyber networks. These applications are categorized as having either direct or indirect interactions between cyber and power networks. We previously studied direct interdependencies inside cyber-power networks and proposed the state mapping based model to evaluate its impact on the power system reliability. This paper focuses on indirect interdependencies between cyber and power networks. Certain applications of indirect interdependencies in modern power systems are discussed, and a state updating-based model is proposed to quantitatively evaluate the reliability of cyber-power networks under indirect interdependencies. Two optimization models are used to maximize the data connectivity in the cyber network and minimize the load curtailment in the power network. A high-voltage substation equipped with both monitoring and protection systems is studied to show the effectiveness of the proposed solution model.
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ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2014.2310742