Flooding risk assessment of power grids by modelling and simulation

Power grids can be significantly affected by floods that can cause power outages with widespread impact on social and economic activities. In this work, we propose a “What-if” scenario analysis by modelling and simulation, which makes use of a hydraulic model to simulate hazard scenarios, fragility curves to describe the process of failure of the power grid components, and a power flow model to assess power outages. A synthetic case study is worked out with reference to the IEEE 14 bus system benchmark serving different categories of electricity customers. The proposed modelling and simulation-based analysis can be used to identify the most critical components to protect for the security of power supply.