A flow importance measure with application to an Italian transmission power system

Claudio M.S. Rocco, José Emmanuel Ramirez-Marquez, Daniel E. Salazar A, Enrico Zio

    Research output: Contribution to journalArticlepeer-review

    22 Scopus citations

    Abstract

    Potential catastrophic events have been historically assessed through the techniques of power system security analysis. A correct assessment must consider not only events associated with "credible outages" but also the possibility of attacks and/or "rare" events. This paper combines concepts of reliability engineering and operations research to develop a new importance measure, D(α), that identifies the most vulnerable group of α links in a network. Since the computation of the new importance measure, D(α), becomes computationally prohibitive for large systems, an approximation technique is provided based on the optimization of a multi-objective deterministic network interdiction problem. The efficiency of the algorithm is then illustrated by analyzing the Italian high-voltage electrical transmission network. In summary, D(α) can be useful for an initial screening of the critical elements of the network.

    Original languageEnglish
    Pages (from-to)53-61
    Number of pages9
    JournalInternational Journal of Performability Engineering
    Volume6
    Issue number1
    StatePublished - Jan 2010

    Keywords

    • Contingency screening
    • Interdiction
    • Multi-objective evolutionary optimization
    • Power system security

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