Energy Not Exchanged: A Metric to Quantify Energy Resilience in Smart Grids

Hassen Soualah (1) , Gurvan Jodin (1) , Roman Le Goff Latimier (2, 1) , Hamid Ben Ahmed (1)

1 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
2 ENS Rennes - École normale supérieure - Rennes

In high-impact, low-probability (HILP) events, resilience is defined as the ability of a system to return to a normal operating state after a failure. The generalization of information technologies and distributed renewable production is transforming the power grid into the so-called smart grid, thus allowing for new mitigation methods to address failures. After illustrating the limits of currently existing metrics, this paper proposes a method to quantify the resilience of smart grids during physical line faults while identifying the most impactful failures. For this purpose, a new resilience metric is defined in order to quantify Energy Not Exchanged (ENE). The calculation of this metric in a power grid via the optimal power flow (OPF) serves, therefore, to quantify the extreme resilience of the grid. In addition, various mitigation strategies, which enable maintaining a high level of resilience, despite the presence of failure, are simulated and then compared to one another (tie switch and microgrid formation).

Mots clés: metric; power grid; high-impact low-probability; smart grid; resilience; microgrid

Domaines: Energie électrique

Hassen Soualah, Gurvan Jodin, Roman Le Goff Latimier, Hamid Ben Ahmed. Energy Not Exchanged: A Metric to Quantify Energy Resilience in Smart Grids. Sustainability, 2023, 15 (3), pp.2596. ⟨10.3390/su15032596⟩. ⟨hal-04001646⟩