Reliability Assessment of Distribution Network Cyber-Physical System Using Goal-Oriented Method

doi:10.12204/j.issn.1000-7229.2020.05.007

Abstract

Abstract: Goal-oriented method is used to assess distribution network cyber-physical system reliability. According to the structure and application of cyber system， cyber equipment and function reliability models are established and success probability is used to depict the influence of cyber system on physical system. Reliability models of distribution network cyber-physical system are built on the basis of dependent relationship among cyber components， physical components， and cyber physical systems. Failure rates and average failure time of load points are calculated on the regional basis， which can be used in system reliability index calculation. This method is compared with Monte-Carlo method in a test system and the results verify the effectiveness of the proposed method. The results also show the efficiency advantage in large-scale distribution information physical system.

Key words: distribution network, cyber-physical system, Goal-oriented method, reliability assessment

CLC Number:

TM 732

GAO Chong， ZENG Guangxuan， ZHANG Junxiao， CAO Huazhen，TANG Junxi，YU Tao. Reliability Assessment of Distribution Network Cyber-Physical System Using Goal-Oriented Method[J]. Electric Power Construction, 2020, 41(5): 58-65.

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