Microgrids Resilience: Challenges, Metrics, and Improvement Metho

Recently, the ever-increasing occurrence rate of high-impact rare (HR) natural events has attracted the attention of researchers to the effects of such incidents on power systems. Examination of available data shows that HR events have the potential to shut down a significant part of the power system and disrupt the routine life of customers. To analyze the power system behavior in the face of HR events, researchers introduced the concept of power system resiliency. Reviewing HR event types threatening Microgrids, the effects of these incidents are investigated. Then, the basic concepts and elements of resilience are discussed. Presenting a state-of-the-art review of the literature, resilience-assessment metrics are discussed and compared. Finally, resilience-improving measures for Microgrids are described. Conclusive remarks are given as well.