کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
758728 896447 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural synchronization in power-grids with anti-correlated units
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Natural synchronization in power-grids with anti-correlated units
چکیده انگلیسی

Synchronization between spatially distributed nodes of a power-grid is a crucial requirement for its proper operation. Using a Kuramoto-like network as a realistic physical model for the distribution of electrical power in a power-grid, we obtain coupling strengths and topological characteristics that favor the synchronous state of those technological networks. Power-grids are highly heterogeneous. They are composed of different classes of nodes and each node behaves differently. We show in this work that if a power-grid is extensive and nodes are highly connected, the coupling strength that leads to synchronization depends mainly on the eigenvalues of the Laplacian matrix, as it happens in homogeneous networks composed of equal nodes. On the other hand, if a power-grid is sparsely connected, the coupling strength that leads to synchronization is also strongly related to the correlation coefficient of the network, which means that a high number of connections between similar nodes (two power plants or two consumer centers) disfavor the synchronizability of the power-grid. We apply our results to the Brazilian power-grid system.


► We investigate the onset of synchronization in large power-grids.
► Negative correlation-coefficient of the graph increases synchronizability.
► We analyse the role of the eigenvalues of the Laplacian matrix of power grids.
► We apply our results to the Brazilian power-grid system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 18, Issue 4, April 2013, Pages 1035–1046
نویسندگان
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