Abstract

Recent severe power outages caused by extreme weather events have highlighted the importance and urgency of improving the resilience of the electric power grid. Grid resilience is increasingly critical since the number of outages caused by severe weather is expected to rise as climate change increases the frequency and intensity of hurricanes, blizzards, floods, and other extreme weather events. As the distribution grids may still remain vulnerable to natural disasters to a certain extent, the power industry has focused on methods of restoring distribution systems quickly after disasters. However, current distribution grid restoration practice is based on the predetermined priorities from previous experiences, which is not adaptive with respect to the status of power grid damage under evolving weather events and available restoration capabilities and resources, and thus tends to be inefficient and suboptimal. In addition, lack of situational awareness of distribution grids poses great challenges to power system operators, which largely delays the restoration process and incurs large economic costs to customers.

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