Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on Power Outage Cost Analysis according to Distribution System Resilience and Restoration Strategies

배전계통 복원력 확보 및 복원 전략에 따른 정전비용분석에 관한 연구

  • Sehun Seo (Department of Safety Engineering, Pukyong National University) ;
  • Hyeongon Park (Department of Safety Engineering, Pukyong National University)
  • 서세훈 (부경대학교 안전공학과) ;
  • 박현곤 (부경대학교 안전공학과)
  • Received : 2022.10.20
  • Accepted : 2022.11.22
  • Published : 2023.02.28
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Abstract

Severe natural disasters and man-made attacks such as terrorism are causing unprecedented disruptions in power systems. Due to rapid climate change and the aging of energy infrastructure, both the frequency of failure and the level of damage are expected to increase. Resilience is a concept proposed to respond to extreme disaster events that have a low probability of occurrence but cause enormous damage and is defined as the ability of a system to recover to its original function after a disaster. Resilience is a comprehensive indicator that can include system performance before and after a disaster and focuses on preparing for all possible disaster scenarios and having quick and efficient recovery actions after an incident. Various studies have been conducted to evaluate resilience, but studies on economic damage considering the duration of a power outage are scarce. In this study, we propose an optimal algorithm that can identify failures after an extreme disaster and restore the load on the distribution system through emergency distributed power generation input and system reconfiguration. After that, the cost of power outage damage is analyzed by applying VoLL and CDF according to each restoration strategy.

Keywords

Acknowledgement

This work was supported by the Pukyong National University Research Fund in 2020 (No. CD20200839).

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