Are power grids vulnerable to cascading failures?

Communication networks and power grids may be subject to cascading failures which can lead to outages. Here the authors propose to investigate cascades using dynamical transients of electrical power grids, thereby identifying possible vulnerabilities that might remain undetected with any static approach.

How to improve power grid safety?

According to the change of power grid operation mode, carry out the troubleshooting of power grid safety risks, deeply study the characteristics of AC-DC hybrid power grid and the operation mechanism of large power grid, timely improve the stability control strategy. Improve the intelligent substation relay protection reliability level.

How can a systemic risk management strategy be implemented in power grids?

Through integrating grid operation-guided with structure-driven strategies, the current research focuses on providing a systemic risk management strategy for power grids through examining cascade failure propagations with and without the CSC implementation.

What happens if a power grid is damaged?

For certain initially damaged lines, this leads to very large cascades in grids with heterogeneous coupling Kij. For instance, both the Spanish and the French power grid show a peak of probability corresponding to cascades of about 150 line failures when α = α1.

Do extreme high temperatures affect power grid infrastructure?

Through scenario comparisons, it is evident that extreme high temperatures reduce the resilience of the power grid and increase investment costs. In , the impact of extreme high temperatures on power grid infrastructure is extensively discussed.

Can grid operation-guided modeling reduce the risk of catastrophic blackouts?

Through integrating grid operation-guided with structure-driven modeling strategies, the current study proposes an approach to manage the risks of such cascade failure (known as systemic-risks) to minimize the possibility of large-scale catastrophic blackouts.