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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 20: Networks: From Topology to Dynamics IV (with BP, DY)
SOE 20.4: Vortrag
Donnerstag, 17. März 2011, 16:00–16:15, GÖR 226
Synchronization and stability of power grids with renewable energy sources — •Martin Rohden1, Andreas Sorge1, Dirk Witthaut1, and Marc Timme1,2 — 1MPI fuer Dynamik und Selbstorganisation, Göttingen, Deutschland — 2Bernstein Center for Computational Neuroscience, Göttingen, Deutschland
The integration of renewable energy sources poses severe challenges for power grids of the future because these sources are substantially smaller, more fluctuating and more distributed than fossil-based power plants. We present a detailed numerical study of synchronization speed and stability of complex power grids, based on a recent model [1] derived from basic equations for electric circuits which describes the real dynamics of a power grid. This approach bridges the gap between very detailed but practically intractable power grid models and too abstract ones on the other hand. A stable working alternating-current power grid has to have a fixed frequency and needs to be robust against power fluctuations. We present simulations for different topologies of power grid networks regarding stability against power failures and overall synchronization speed. Furthermore we analyze the integration of renewable power sources into the grid and show the consequences for its stability and synchronization speed.
[1]: G. Filatrella et. al., Eur. Phys. J. B 61, 485 (2008)