Self-organized synchronization in decentralized power grids.

Robust synchronization (phase locking) of power plants and consumers centrally underlies the stable operation of electric power grids. Despite current attempts to control large-scale networks, even their uncontrolled collective dynamics is not fully understood. Here we analyze conditions enabling self-organized synchronization in oscillator networks that serve as coarse-scale models for power grids, focusing on decentralizing power sources. Intriguingly, we find that whereas more decentralized grids become more sensitive to dynamical perturbations, they simultaneously become more robust to topological failures. Decentralizing power sources may thus facilitate the onset of synchronization in modern power grids.

[1]  Dirk Helbing,et al.  Transient dynamics increasing network vulnerability to cascading failures. , 2007, Physical review letters.

[2]  Ronnie Belmans,et al.  Distributed generation: definition, benefits and issues , 2005 .

[3]  Frede Blaabjerg,et al.  Overview of Control and Grid Synchronization for Distributed Power Generation Systems , 2006, IEEE Transactions on Industrial Electronics.

[4]  Adilson E Motter,et al.  Cascade-based attacks on complex networks. , 2002, Physical review. E, Statistical, nonlinear, and soft matter physics.

[5]  W. Patterson.  Energy policy , 1978, Nature.

[6]  H. Risken.  Fokker-Planck Equation , 1996 .

[7]  Martin Greiner,et al.  Proactive robustness control of heterogeneously loaded networks. , 2006, Physical review letters.

[8]  Emma Marris,et al.  Energy: Upgrading the grid , 2008, Nature.

[9]  Jan T. Bialasiewicz,et al.  Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey , 2006, IEEE Transactions on Industrial Electronics.

[10]  Mirko Schäfer,et al.  Robustness of networks against fluctuation-induced cascading failures. , 2008, Physical review. E, Statistical, nonlinear, and soft matter physics.

[11]  Declan Butler.  Energy efficiency: Super savers: Meters to manage the future , 2007, Nature.

[12]  R. Rosenfeld.  Nature , 2009, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[13]  G. Filatrella,et al.  Analysis of a power grid using a Kuramoto-like model , 2007, 0705.1305.

[14]  S. Sharma,et al.  The Fokker-Planck Equation , 2010 .