In recent years

with the rapid expansion of ultra-high voltage （UHV）long-distance overhead transmission networks and the continuous extension of power infrastructure coverage

the frequency of ice disasters has surged significantly.Chain fault events such as conductor breakage and tower collapse have occurred frequently

posing severe challenges to the secure and stable operation of power systems.To mitigate these impacts

it is crucial to enhance power system resilience during ice disasters.This involves calculating ice thickness on transmission lines using weather forecasts and micro-terrain data

determining the total load on lines and towers

and assessing the change in line failure rates based on design strengths.System operating states are simulated to construct resilience indices and evaluate system resilience.Enhancement methods are applied in pre-disaster

during-disaster

and post-disaster stages to improve system resilience.