Cyber-Physical Risk Evolution Analysis of Active Distribution Network under Feeder Control Error

doi:10.11930/j.issn.1004-9649.202009100

Abstract

Abstract: In the active distribution network cyber-physical system exists a strong coupling relationship between the cyber system and the physical grid. Under the complex cyber-physical interaction, the cyber system anomalies or failures will directly affect and reduce the operation level of the power grids, and even cause serious cascading failures. Compared to the traditional power system, the risk incentives of the power cyber-physical system are more diversified, the interaction mechanisms are more complicated, and the identification are more difficult. The power system cyber-physical security risk has become one of the fundamental issues in the power system operation. By taking the active distribution network as an example, we establish a risk transfer model for active distribution networks under cyber-attacks to reveal the evolution mechanism of failures in the distribution network cyber-physical system. Finally, a simulation case study is carried out with DIgSILENT to verify the correctness of the proposed model, and some suggestions are proposed on how to prevent cyber-side risks in the future distribution network and improve the level of security risk protection.

Key words: active distribution network, cyber physical system, feeder control error, risk evolution, cyber attack

WENG Jiaming, LIU Dong, AN Yu, YIN Haoyang, HUANG Zhi, QIN Han. Cyber-Physical Risk Evolution Analysis of Active Distribution Network under Feeder Control Error[J]. Electric Power, 2021, 54(3): 13-22.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202009100

https://www.electricpower.com.cn/EN/Y2021/V54/I3/13

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