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Computational Science and Engineering > Public > Events > Criticality, Self-Organization, and Cascading Failure in Electric Power System Blackouts Personal tools Log in Criticality, Self-Organization, and Cascading Failure in Electric Power System Blackouts Ian Dobson, University of Wisconsin-Madison will present Criticality, Self-Organization, and Cascading Failure in Electric Power System Blackouts What Presentation When 2006-06-30 02:00 PM 2006-06-30 03:00 PM June 30, 2006 from 02:00 pm to 03:00 pm Where MSB 1147 Add event to calendar vCal iCal Ian Dobson from the University of Wisconsin at Madison will pgive a presentation entitled Criticality, Self-Organization, and Cascading Failure in Electric Power System Blackouts. All are invited to attend. The large-scale electric power transmission networks that underpin our society occasionally fail in spectacular cascading blackouts. The failures propagate in a rich variety of ways, including redistributed network flows surpassing thresholds. Simulations of the cascading failure in blackouts suggest phase transitions in blackout risk as power system loading is increased. Viewing the slow upgrade of the transmission network as complex system dynamics suggests an explanation for the observed power-law distribution of the sizes of North American blackouts. The network upgrade process continually improves the components that fail in blackouts so that the network engineering is viewed as part of the complex dynamics. We propose to efficiently determine blackout risk from cascading failure simulations by estimating how much failures propagate. This is joint work with Benjamin Carreras at Oak Ridge National Laboratory, Tennessee and David Newman at the University of Alaska at Fairbanks and Kevin Wierzbicki at the University of Wisconsin at Madison.