Synthetic Risk Assessment of Catastrophic Event in Power System Based on Uncertainty

Abstract:

The risk assessment incorporate the severity as well as the possibility of event, however synthetic severity index weight coefficient is setting up subjectively in existing catastrophic event risk assessment. To overcome the uncertainty of the weight setting in conventional synthetic risk assessment, this paper introduces the entropy method to determine the weight objectively. Based on the existing severity measure matrix, the weight coefficient of severity indicator is generated by the entropy weight method combined with fuzzy membership function, furthermore proposing a catastrophic event assessment mathematical model and method based on uncertainty. The simulation of the local power grid proved that the proposed method is with correctness and objectivity, provided with engineering value.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 796-801
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.796
• Online since: December 2012
• Authors: Jing Feng, Xian Yong Xiao, Chao Ma
• Keywords: Catastrophic Event, Entropy Weight Method, Power System, Severity Index, Synthetic Risk Assessment, Uncertainty

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