Regensburg 2019 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 46: Energy Networks (joint SOE/DY) (joint session SOE/DY)
DY 46.2: Vortrag
Donnerstag, 4. April 2019, 11:45–12:00, H17
Flow Redistribution after Link Failures in Linear Flow Networks — •Franz Kaiser1,2, Julius Strake1,2, Henrik Ronellenfitsch3, and Dirk Witthaut1,2 — 1Forschungszentrum Jülich, Institute for Energy and Climate Research - Systems Analysis and Technology Evaluation (IEK-STE) — 2University of Cologne, Institute for Theoretical Physics — 3Department of Mathematics, Massachusetts Institute of Technology
Failing links can degrade the operation of a supply network up to the point of complete collapse. Yet, the interplay between network topology and locality of the response to such damage is poorly understood. Here, we study the role of topology for the redistribution of flow after the failure of links in linear flow networks with a special focus on power grids. In particular, we analyze the decay of flow changes with distance after a link failure and examine the interplay of multiple lines failing at the same time. In addition to that, we introduce a rerouting distance to predict this decay for real-world networks and use this tool for describing the interaction of multiple outages. Our results show that it is possible to forecast flow rerouting after link failures to a large extent based on purely topological measures and that these effects generally decay with distance from the failing link.