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  Curing critical links in oscillator networks as power flow models

Rohden, M., Witthaut, D., Timme, M., & Meyer-Ortmanns, H. (2017). Curing critical links in oscillator networks as power flow models. New Journal of Physics, 19(1): 013002. doi:10.1088/1367-2630/aa5597.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-DDBB-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-77D8-6
Genre: Journal Article

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 Creators:
Rohden, M., Author
Witthaut, Dirk1, Author              
Timme, Marc1, Author              
Meyer-Ortmanns, H., Author
Affiliations:
1Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063295              

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Free keywords: complex networks; power grids; rerouting; critical links; synchronization
 Abstract: Modern societies crucially depend on the robust supply with electric energy so that blackouts of power grids can have far reaching consequences. Typically, large scale blackouts take place after a cascade of failures: the failure of a single infrastructure component, such as a critical transmission line, results in several subsequent failures that spread across large parts of the network. Improving the robustness of a network to prevent such secondary failures is thus key for assuring a reliable power supply. In this article we analyze the nonlocal rerouting of power flows after transmission line failures for a simplified ACpower grid model and compare different strategies to improve network robustness. Weidentify critical links in the grid and compute alternative pathways to quantify the grid's redundant capacity and to find bottlenecks along the pathways. Different strategies are developed and tested to increase transmission capacities to restore stability with respect to transmission line failures. Weshow that local and nonlocal strategies typically perform alike: one can equally well cure critical links by providing backup capacities locally or by extending the capacities of bottleneck links at remote locations.

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Language(s): eng - English
 Dates: 2017-01-06
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1088/1367-2630/aa5597
 Degree: -

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Title: New Journal of Physics
Source Genre: Journal
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Publ. Info: -
Pages: 11 Volume / Issue: 19 (1) Sequence Number: 013002 Start / End Page: - Identifier: -