Reliability evaluation of a substation automation system communication network based on IEC 61850

The application of IEC 61850 brings significant changes to the instrumentation, monitoring, communication, control and protection systems used in the substation automation system (SAS). Compared with the conventional substation system, the implementation of IEC 61850 provides more flexibility in SAS...

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Bibliographic Details
Published in12th IET International Conference on Developments in Power System Protection (DPSP 2014) p. 7.2.4
Main Authors Liu, N, Panteli, M, Crossley, P.A
Format Conference Proceeding
LanguageEnglish
Published Stevenage, UK IET 2014
The Institution of Engineering & Technology
Subjects
Monte Carlo methods
Power system protection
Reliability
Substations
power system measurement
stochastic Monte Carlo simulation method
SAS
RBD approach
sensitive analysis
reliability block diagram
protection system reliability evaluation
SCN architecture
topologies
Monte Carlo methods
IEC standards
substation automation
process buses
monitoring system
power system reliability
substation communication network
substation protection
stochastic processes
all-digital substation
substation automation system communication network
IEC 61850
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Summary:The application of IEC 61850 brings significant changes to the instrumentation, monitoring, communication, control and protection systems used in the substation automation system (SAS). Compared with the conventional substation system, the implementation of IEC 61850 provides more flexibility in SAS architectures, but it also raises concerns about the reliability and performance of the overall system. This paper proposes a methodology to evaluate the reliability of an all-digital substation considering different topologies of both the station and process buses. The proposed reliability evaluation procedure is based on analytical Reliability Block Diagram (RBD) approach and stochastic Monte Carlo simulation method. This reliability analysis, combined with sensitive analysis, would help indicate the most reliable Substation Communication Network (SCN) architecture to realize a specific communication service. It would also help determine the weak points needed to be improved in order to improve the overall reliability of the automation system.
ISBN:1849198349
9781849198349
DOI:10.1049/cp.2014.0057