Investigation on the Impact of Heat Waves on Distribution System Failures

TL;DR

This paper examines how heat waves affect the reliability of distribution systems, highlighting differences between real-world failure data and theoretical models, and suggesting improvements for resilience modeling.

Contribution

It identifies specific features influencing failure modeling during heat waves and proposes refinements to existing resilience models based on real case analyses.

Findings

Differences observed between empirical and theoretical failure distributions during heat waves.

Real case examples illustrate the impact of heat waves on distribution system failures.

Refined models can improve resilience assessment under extreme heat conditions.

Abstract

This paper discusses some aspects referring to the characterization and modelling of the resilience of distribution systems in the presence of heat waves. The aim is to identify the specific features that can lead to more detailed modelling of the impact of heat waves on the failures that happen in distribution systems. In particular, with heat waves there are differences between the cumulative distribution function of the time to failure in practical cases and in the theoretical reference used for reliability analysis. These differences may be considered to refine the resilience models due to heat waves. Examples taken from real cases are illustrated and commented.