Seismic risk and resilience analysis of power system enhancement strategies considering socioeconomic vulnerability factors
Journal
International Journal of Critical Infrastructure Protection
Journal Volume
54
Start Page
100865
ISSN
18745482
Date Issued
2026-09
Author(s)
Chen, I-Yun
Abstract
Natural disasters can severely impact critical infrastructure and lifelines. Governments worldwide are actively seeking methods to enhance resilience against such disasters. This research aims to integrate the characteristics of resilience and vulnerability and apply them to the network analysis of an electric power system. The proposed method assesses the effects and recovery levels of the power network during and after an earthquake and identifies feasible mitigation and response strategies considering the robustness, rapidity, redundancy, and resourcefulness to enhance community resilience. The study conducts graph theory analysis to evaluate the centrality of each node and its impact after failure, thereby identifying critical nodes. The damage and recovery of the power network under seismic scenarios are assessed through Monte Carlo simulations incorporating seismic intensities, fragility curves, and recovery functions. The resilience of the power network is evaluated considering socioeconomic vulnerability variables. The case study focuses on the administrative districts of Taipei and New Taipei City, Taiwan, with a simulated earthquake of magnitude 6.6 along the Shanchiao Fault. The results demonstrate that the proposed method can identify critical nodes and high-risk areas. The effects of different resilience enhancement strategies are evaluated, providing insights for decision-makers in planning disaster mitigation and resilience improvement strategies.
Subjects
Disaster mitigation
Power system
Resilience
Seismic risk
Vulnerability
Publisher
Elsevier B.V.
Type
journal article