Abstract
In this paper, according to the ice storm weather, through the numerical analysis of meteorological records, the movement rule of ice storm weather and the mechanism of action on overhead transmission lines are studied, and the ice storm weather model suitable for overhead transmission lines is established. Then the ice storm weather model is connected with the failure probability of the overhead transmission lines, and the structural reliability of the overhead transmission lines under the ice storm weather is analyzed. Finally, based on the evaluation of the reliability of the lines, the restoration model of the damaged overhead transmission lines is established. So as to provide a theoretical basis for the safe operation of the power grid.
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