TY - JOUR
T1 - A flow importance measure with application to an Italian transmission power system
AU - Rocco, Claudio M.S.
AU - Ramirez-Marquez, José Emmanuel
AU - Salazar A, Daniel E.
AU - Zio, Enrico
PY - 2010/1
Y1 - 2010/1
N2 - 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.
AB - 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.
KW - Contingency screening
KW - Interdiction
KW - Multi-objective evolutionary optimization
KW - Power system security
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M3 - Article
AN - SCOPUS:77953815720
SN - 0973-1318
VL - 6
SP - 53
EP - 61
JO - International Journal of Performability Engineering
JF - International Journal of Performability Engineering
IS - 1
ER -