Application of hardening strategies and DG placement to improve distribution network resilience against earthquakes

Mehdi Ahmadi, Mahdi Bahrami, Mehdi Vakilian, Matti Lehtonen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

During natural disasters, distribution systems operation is severely affected by facing many failures. In this regard, it is crucial to enhance the resilience of the distribution systems (DSs) against these disasters. However, nowadays, due to limitation of resources for investment in these networks, only the most efficient measures should be implemented. In this paper, a new tri-level optimization model based on the min-max-min model is presented to improve the distribution system resilience. In this method, reviewing the past earthquakes' consequences in Iran and some parts of the world, three strategies are taken into account: 1- hardening distribution poles 2- hardening the connection of distribution transformers on their supporting poles 3- allocating distributed generator (DG) units in candidate nodes. In this model, the system planner determines which lines and nodes to be hardened in the upper level. In the middle level, the most vulnerable lines and nodes under occurrence of natural disasters are identified. In the lower-level, the system operator decides how to reconfigure the grid by a set of switching operations to minimize the load-shedding. The proposed method is implemented on a real 48-bus distribution network in Tehran. The results verify the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationProceedings of the 2020 IEEE PES Transmission and Distribution Conference and Exhibition - Latin America
PublisherIEEE
Number of pages6
ISBN (Electronic)9781728141558
DOIs
Publication statusPublished - 21 Jan 2021
MoE publication typeA4 Article in a conference publication
EventIEEE PES Transmission and Distribution Conference and Exposition - Latin America - Montevideo, Uruguay
Duration: 28 Sep 20202 Oct 2020

Conference

ConferenceIEEE PES Transmission and Distribution Conference and Exposition - Latin America
Abbreviated titleIEEE PES
CountryUruguay
CityMontevideo
Period28/09/202002/10/2020

Keywords

  • Distribution system resilience
  • Hardening strategies
  • Natural disaster
  • Tri-level optimization model

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