NDLI: Risk Based Identification of Cascading Chains Based on Generalized Line Outage Distribution Factors

Content Provider	IEEE Xplore Digital Library
Author	Yuanyu Dai Yusheng Xue Guo Chen Yan Xu Zhao Xu Dong, Z.Y.
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong, China (Zhao Xu) \|\| State Grid Electr. Power Res. Inst., Nanjing, China (Yusheng Xue) \|\| Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia (Guo Chen) \|\| Sch. of Autom., Nanjing Univ. of Sci. & Technol., Nanjing, China (Yuanyu Dai) \|\| Centre for Intell. Electr. Networks, Univ. of Newcastle, Newcastle, NSW, Australia (Yan Xu; Dong, Z.Y.)
Abstract	In the past decades, many countries have suffered from serious blackouts which demonstrate catastrophic consequences caused by rare events in power systems. To address the emerged issues, the contingency screening and ranking should consider the risks of potential failures instead of the associated probabilities of following-up failures alone. However, it is computationally infeasible to evaluate all possible cascading failure sequences beforehand. Thus, fast risk assessment method should be developed to enhance computation efficiency while maintaining acceptable accuracy. In this paper, based on distribution factors and pre-contingency power flow conditions, a novel risk index is proposed to quickly assess the consequences of possible cascading failures. Then creditable cascading failure sequences can be determined and ranked according to the risk index. In addition, case studies on the IEEE-118 bus system show that the computational efficiency of the proposed cascading assessment method can be greatly enhanced with satisfactory accuracy, indicating a high potential of practical implementation.
Starting Page	553
Ending Page	556
File Size	1059455
Page Count	4
File Format	PDF
e-ISBN	9781479927920
DOI	10.1109/ISDEA.2013.531
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Index system Accuracy Power system protection Entropy model Multi-criteria Indexes Security Physical education Power system faults Load flow
Content Type	Text
Resource Type	Article

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