A service interruption free testing methodology for IEDs in IEC 61850-based substation automation systems

Lim, Seong-Il

doi:10.1016/j.ijepes.2016.11.007

Cited by 9 publications

(1 citation statement)

References 24 publications

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“…In recent years, more research has focused on the cyber-security in power grid. Cyber security in a typical smart grid is illustrated by S. Lim et al [5], and four types of cyber-power interdependencies were categorized by B. Falahati et al [6]. For evaluating the direct element-element interdependency between power grid and communication network, B. Falahati et al [6] proposed a probability table, denoted as the P- Table, to analyze the reliability in integrated systems.…”

Section: Introductionmentioning

confidence: 99%

Reliability Analysis of Cyber–Physical Systems: Case of the Substation Based on the IEC 61850 Standard in China

Cai

Chen

et al. 2018

Energies

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With the increasing interaction between physical devices and communication components, the substation based on the IEC 61850 standard is a type of cyber–physical system. This paper proposes a reliability analysis method for substations with a cyber–physical interface matrix (CPIM). This method calculates the influences from both the physical device failures and the communication devices failures. Two indices, Probability of Load Curtailments and Expected Demand Not Supplied, are used in the reliability analysis. Given the simplified model of the practical substation based on the Chinese IEC 61850 standard, the results show that the substation system had a potential risk of cascading failure under the cyber–physical fusion trend, as the failure in cyber layer would increase the power loss of the whole system. The changing magnitude of Expected Demand Not Supplied increased significantly with increasing transmission delay rate of the process bus.

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Section: Introductionmentioning

confidence: 99%