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The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

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Title	A Study on Reliability Analysis of Substation Automation System
Authors	박철원(Park, Chul-Won)
DOI	https://doi.org/10.5370/KIEEP.2015.64.4.281
Page	pp.281-285
ISSN	1229-800X
Keywords	Availability ; Interoperability ; Reliability ; Reliability block diagram(RBD) ; Substation automation system(SAS) ; Unreliability
Abstract	Electrical energy supply interruption degrades reliability of power supply as well as social costs and economic loss. It is important to assess the reliability of the power system. Nowadays IEC61850 based substation automation system(SAS) has been developed for an updating of automation and interoperability. In this study, three kinds of reliability block diagram(RBD) were proposed to examine of network availability of the three types SAS. And reliability and unreliability of the SAS was formulated using the RBD. Finally, while varying the value of reliability and unreliability, the reliability and the unreliability of the overall system were evaluated.

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