Title: Evidence for self-organized criticality in electric power system blackouts
Abstract: We examine correlations in a time series of electric power system blackout sizes using scaled window variance analysis and R/S statistics. The data shows some evidence of long time correlations and has Hurst exponent near 0.7. Large blackouts tend to correlate with further large blackouts after a long time interval. Similar effects are also observed in many other complex systems exhibiting self-organized criticality. We discuss this initial evidence and possible explanations for self-organized criticality in power systems blackouts. Self-organized criticality, if fully confirmed in power systems, would suggest new approaches to understanding and possibly controlling blackouts.
Publication Year: 2005
Publication Date: 2005-08-29
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 150
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