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Open AccessArticle

Risk Assessment Method of UHV AC/DC Power System under Serious Disasters

State Key Laboratory of New Energy Power System, North China Electric Power University, Beijing 102206, China
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Author to whom correspondence should be addressed.
Academic Editor: Gianfranco Chicco
Energies 2017, 10(1), 13; https://doi.org/10.3390/en10010013
Received: 10 November 2016 / Revised: 14 December 2016 / Accepted: 17 December 2016 / Published: 23 December 2016
(This article belongs to the Special Issue Advances in Power System Operations and Planning)
Based on the theory of risk assessment, the risk assessment method for an ultra-high voltage (UHV) AC/DC hybrid power system under severe disaster is studied. Firstly, considering the whole process of cascading failure, a fast failure probability calculation method is proposed, and the whole process risk assessment model is established considering the loss of both fault stage and recovery stage based on Monte Carlo method and BPA software. Secondly, the comprehensive evaluation index system is proposed from the aspects of power system structure, fault state and economic loss, and the quantitative assessment of system risk is carried out by an entropy weight model. Finally, the risk assessment of two UHV planning schemes are carried out and compared, which proves the effectiveness of the research work. View Full-Text
Keywords: ultra-high voltage (UHV); chain failure; risk assessment; index system ultra-high voltage (UHV); chain failure; risk assessment; index system
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Long, R.; Zhang, J. Risk Assessment Method of UHV AC/DC Power System under Serious Disasters. Energies 2017, 10, 13.

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