NDLI: A network approach for power grid robustness against cascading failures

Content Provider	IEEE Xplore Digital Library
Author	Xiangrong Wang Koc, Y. Kooij, R.E. Van Mieghem, P.
Copyright Year	2015
Description	Author affiliation: Delft Univ. of Technol., Delft, Netherlands (Xiangrong Wang; Koc, Y.; Kooij, R.E.; Van Mieghem, P.)
Abstract	Cascading failures are one of the main reasons for blackouts in electrical power grids. Stable power supply requires a robust design of the power grid topology. Currently, the impact of the grid structure on the grid robustness is mainly assessed by purely topological metrics, that fail to capture the fundamental properties of the electrical power grids such as power flow allocation according to Kirchhoff's laws. This paper deploys the effective graph resistance as a metric to relate the topology of a grid to its robustness against cascading failures. Specifically, the effective graph resistance is deployed as a metric for network expansions (by means of transmission line additions) of an existing power grid. Four strategies based on network properties are investigated to optimize the effective graph resistance, accordingly to improve the robustness, of a given power grid at a low computational complexity. Experimental results suggest the existence of Braess's paradox in power grids: bringing an additional line into the system occasionally results in decrease of the grid robustness. This paper further investigates the impact of the topology on the Braess's paradox, and identifies specific substructures whose existence results in Braess's paradox. Careful assessment of the design and expansion choices of grid topologies incorporating the insights provided by this paper optimizes the robustness of a power grid, while avoiding the Braess's paradox in the system.
Starting Page	208
Ending Page	214
File Size	164271
Page Count	7
File Format	PDF
ISBN	9781467380508
e-ISBN	9781467380515
DOI	10.1109/RNDM.2015.7325231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-05
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resistance Measurement Power transmission lines Cascading failures Power system protection Complex networks Robustness Power grids Power system faults Power grid
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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