Preliminary Analysis of Network Fragility and Resilience in Large Electric Grids Conference Paper uri icon


  • This paper introduces and compares two frameworks for evaluating and quantifying the network fragility and resilience of large, high-voltage transmission grids, with example applications given for validating synthetic test case datasets. The first framework uses an all-terminal reliability metric based on graph-theoretic probabilistic connectivity analysis, allowing for a more precise determination of the distribution and edge cases of fragility. The other network resilience framework considered here analyzes maximal load delivery capability, as evaluated by a linearized optimal power flow analysis that allows load shedding. This analysis is performed under multiple component outage conditions, along the full spectrum from ordinary operation to complete non-availability of the extra-high voltage grid. The range of results indicates grid performance under three types of outage sets: planned outages, random outages, and targeted outages. Example results for the North-Central area of the 2000-bus synthetic Texas test case show the application of the two methods.

name of conference

  • 2021 IEEE Power and Energy Conference at Illinois (PECI)

published proceedings


author list (cited authors)

  • Birchfield, A. B., Patil, J., Paredes, R., & Duenas-Osorio, L.

citation count

  • 0

complete list of authors

  • Birchfield, Adam B||Patil, Jayant||Paredes, Roger||Duenas-Osorio, Leonardo

publication date

  • April 2021