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A Novel Method for Evaluating the Resilience of Distribution Networks during Heat Waves

Davide Falabretti1, Luca Lo Schiavo2, Stefano Liotta3, and Alessandro Palazzoli3
1. Department of Energy, Politecnico di Milano, Milano, Italy
2. ARERA (National Regulatory Authority for Energy, Milano, Italy
3. ARETI, Roma, Italy

Abstract—This paper describes a methodology for the evaluation of the distribution networks resilience in large metropolitan areas during heat waves. These weather conditions (very hot and dry periods) in recent years have become more and more frequent due to climate changes. Thus, procedures to evaluate their impact on electricity networks assumed a particular interest. In the paper, a novel approach for the modeling of heat waves is presented and an example is provided based on a simple network in order to better highlight how the procedure works, the results obtained and the methodology potentials. A combination of three in-cascade models is used to evaluate the fault risk of each network component: a thermal, an aging and a reliability model. On the basis of the work described in this paper, a software tool has been implemented, used by the Italian DSO Areti SpA for evaluating the resilience of the distribution system of the Italian capital of Rome. 

Index Terms—Distribution grids, resilience, heat wave, thermal model, Arrhenius law

Cite: Davide Falabretti, Luca Lo Schiavo, Stefano Liotta, and Alessandro Palazzoli, "A Novel Method for Evaluating the Resilience of Distribution Networks during Heat Waves," International Journal of Electrical and Electronic Engineering & Telecommunications,  Vol. 9, No. 2, pp. 73-79, March 2020. Doi: 10.18178/ijeetc.9.2.73-79

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.