Berlin 2015 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 43: Energy Systems and Power Grid (joint session DY/ AK Energy /SOE)
DY 43.6: Talk
Thursday, March 19, 2015, 10:45–11:00, BH-N 243
Impact of network topology on decentral frequency-based smart grid control — •Carsten Grabow1 and Jürgen Kurths2 — 1Potsdam Institute for Climate Impact Research, Potsdam, Germany — 2Potsdam Institute for Climate Impact Research, Potsdam, Germany
Replacing conventional power sources by renewables in power grids poses a big challenge nowadays. In particular, a stable operation of the power grid requires new methods and ideas in aligning the arising fluctuations in decentralised supply to the temporally varying demands. In this context, a decentral Smart Grid Control has been proposed recently in order to directly link the price information to the local grid frequency. Principally, it has been shown that this approach leads to an efficient decentralized strategy for matching supply and demand in a dynamically stable way. However, first results are restricted to simple small and regular networks. In our talk, we will extend the local and global stability analysis of the decentral Smart Grid Control to the collective dynamics of small network motifs, in particular, star-like networks and regular grid motifs. For larger networks, we numerically investigate decentralization scenarios finding additional phenomena that have to be considered to support power grids in exhibiting a stable state.