Spatial and temporal clustering of fault events on the GB transmission network

Abstract

Abstract-The UK is subject to changing weather patterns due to the global process of climate change. The full extent of these changes is not currently known; however, it is possible that the UK will be subject to more extreme or more frequent severe weather events (or both). As 50% of the faults on the transmission network in Britain are weather related it is likely that any change in weather patterns for the worse would increase the number of faults the network experiences. This paper describes a review of fault records in one region of the UK in order to understand the potential impact on system operation of clusters of weather related network faults. Based on the patterns of identified clusters, it suggests some potential impacts of climate change.

Management of extreme weather impacts on electricity grids: an international review

“…Moreover, multiple outages can occur before the SO has had a chance to re-secure the system. This can be because of equipment error or during a storm when weather-related outages can occur with a frequency 3 orders of magnitude higher than during normal conditions (Morris et al 2016).…”

How Long is a Resilience Event in a Transmission System?: Metrics and Models Driven by Utility Data

“…For example, [24], [25] extracted events in the Northwest USA in which outages occurred in quick succession, and modeled the propagation and number of outages using a branching process, and how event outages spread in the network. [26] extracted events in Britain in which outages occurred in quick succession and analyzed their sizes and causes. [27] extracted events from North American data with a quick succession of overlapping outages and analyzed their sizes and causes.…”