NDLI: Transmission grid vulnerability assessment by eigen-sensitivity and cut-set screening

Content Provider	IEEE Xplore Digital Library
Author	Liu, X. Joos, G.
Copyright Year	2010
Description	Author affiliation: AESO (Alberta Electric System Operators), and the Department of Electrical and Computer Engineering, McGill University, Montreal, H3A 2A7, Canada (Liu, X.; Joos, G.)
Abstract	This paper deals with the assessment of the vulnerability of the transmission grid under extreme contingencies, including a terrorist threat or an exceptional natural disaster. It proposes a two-step screening-and-ranking approach to find the dynamically most disruptive disturbances created by multiple-line outages. In the screening step, critical transmission lines are selected according to the sensitivities of the critical system eigenvalues to the loss of transmission lines, complemented by a topology analysis that searches for the cut-sets in the system leading to islanding. In the ranking step, time-domain simulations are performed for the contingencies given by the combination of lines screened out in the first step in order to determine and classify their actual dynamic impacts. Results obtained from a test system show that the proposed approach is able to screen out most of the critical multiple-line outages in terms of load shedding and transient stability.
Starting Page	1
Ending Page	8
File Size	499784
Page Count	8
File Format	PDF
ISBN	9781424465460
e-ISBN	9781424465484
DOI	10.1109/TDC.2010.5484204
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Security Terrorism Risk analysis Power transmission lines Transmission line theory Propagation losses Frequency estimation Monitoring Power generation Cost function Vulnerability Eigen-Sensitivity Cut-set Contingency Screening
Content Type	Text
Resource Type	Article

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