Analytical modeling of overhead line vulnerability to wet snow events for resilience assessment

Publications - Paper

Analytical modeling of overhead line vulnerability to wet snow events for resilience assessment

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#Climate Change #Electrical System #Electricity Network #Security

Publications - Paper

Analytical modeling of overhead line vulnerability to wet snow events for resilience assessment

This article presents an analytical model to simulate the mechanical vulnerability of overhead lines to wet snow events, considering the three main subcomponents of the line: phase conductors, guard wires and pylons.

Extreme weather events are becoming increasingly frequent due to climate change and often cause major disruptions to electricity systems. A necessary and preliminary step to address this issue is the analysis of component vulnerabilities to natural threats that can cause multiple and dependent contingencies. Furthermore, the availability of advanced analytical models that describe the vulnerability of components to threats can encourage the development of approaches and tools to support operators’ choices in managing the electricity system. This article presents an analytical model to simulate the mechanical vulnerability of overhead lines to wet snow events, considering the three main subcomponents of the line: phase conductors, guard wires and pylons. Simulations performed on some realistic types of supports and on a reasonable range of mechanical loads, determined by the action of wet snow and ice and wind, can be useful to identify the weakest subcomponents of the lines and to calculate the return times of the relative faults.

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Publications - Paper

Analytical modeling of overhead line vulnerability to wet snow events for resilience assessment

Publications - Paper

Analytical modeling of overhead line vulnerability to wet snow events for resilience assessment

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