High Impact Low Probability Weatherization Impact Analysis for Electricity Infrastructure

Abstract

High impact low probability (HILP) weather events are known to have the capability to damage the power system network and lead to a complete outage. Such HILP events encourage the system to have continuous improvement for the resilience of the network. Enhancing the power system resilience has always been challenging for system operators to implement resilient strategies and techniques for pre-, during, and post-weather events. This paper introduces an approach to visualize the effect of wind gusts and the possibility of an outage from HILP, considering the contingencies of the power system network to analyze the risks of failure on the system. Furthermore, this paper also discusses the resilient strategy of utilizing battery storage to reduce the risk on the other components due to the overloading of critical components. Weather data analysis was conducted and incorporated with the power system network to visualize the weatherization effect on the Auckland Network, assuming the contingencies of the two busbars.