Literature Survey on Power System Resilience Against Ice Storms

Ice accumulation on power lines during an ice storm can result in permanent damage and widespread power outages if left unaddressed. This paper presents a literature survey on the resilience of power systems against ice storms, focusing on three pillars of resilience: modelling, situational awareness, and response. Physical and data driven approaches for modelling ice formation around power lines are examined. Situational awareness as achieved through various methods for tracking spatiotemporal changes in ice storms, fragility modelling of power system components, and the assessment of power system resilience in different studies is also discussed. Finally, mitigation strategies are explored, including mechanical techniques that rely on force to break ice off a power line and electrical methods that use heat from power flow to melt it.