title: The interplay of network structure and dispatch solutions in power grid cascading failures.
abstract: For a given minimum cost of the electricity dispatch, multiple equivalent dispatch solutions may exist. We explore the sensitivity of networks to these dispatch solutions and their impact on the vulnerability of the network to cascading failure blackouts. It is shown that, depending on the heterogeneity of the network structure, the blackout statistics can be sensitive to the dispatch solution chosen, with the clustering coefficient of the network being a key ingredient. We also investigate mechanisms or configurations that decrease discrepancies that can occur between the different dispatch solutions.
authors.affiliation: Departamento de Física, Universidad Carlos III de Madrid, 28911 Leganes, Madrid, Spain.
authors.forename: Jose M
authors.initials: JM
authors.lastname: Reynolds-Barredo
authors.affiliation: Physics Department, University of Alaska, Fairbanks, Alaska 99775, USA.
authors.forename: David E
authors.initials: DE
authors.lastname: Newman
authors.affiliation: Departamento de Física, Universidad Carlos III de Madrid, 28911 Leganes, Madrid, Spain.
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Carreras
authors.affiliation: Electrical and Computer Engineering Department, Iowa State University, Ames, Iowa 50011, USA.
authors.forename: Ian
authors.initials: I
authors.lastname: Dobson