Congestion management in LV grids using static and dynamic EV smart charging

Martijn Verhoog, Nico Brinkel, Tarek Alskaif

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

In recent years, the adoption of electric vehicle has increased steadily, posing substantial problems in the low voltage grid. Among these problems are grid congestion and voltage instability. This study proposes a dynamic smart charging strategy based on a constant impedance load flow model, in which the optimal electric vehicle charging power is based on the available grid capacity. The dynamic charging profile is compared to a static charging profile and business as usual charging in a case study on a representative low voltage grid. Simulations are made with projections for electric vehicle charging, residential electricity demand and photovoltaic generation for 2018, 2030 and 2050. The results of the case study show that no grid congestion occurs in the 2018 scenario, and little in the 2030 scenario, meaning that the current grid infrastructure is well- suited for the electric vehicle charging demand and that the business as usual and static smart charging profiles result in an underutilization of the grid capacity. Grid congestion occurs substantially more frequently in the 2050 scenario, but the dynamic smart charging profile results in a greater utilization of the grid capacity compared to the alternatives.

Original languageEnglish
Title of host publicationSEST 2020 - 3rd International Conference on Smart Energy Systems and Technologies
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728147017
ISBN (Print)9781728147024
DOIs
Publication statusPublished - Sep 2020
Event3rd International Conference on Smart Energy Systems and Technologies, SEST 2020 - Virtual, Istanbul, Turkey
Duration: 7 Sep 20209 Sep 2020

Publication series

NameSEST 2020 - 3rd International Conference on Smart Energy Systems and Technologies

Conference

Conference3rd International Conference on Smart Energy Systems and Technologies, SEST 2020
CountryTurkey
CityVirtual, Istanbul
Period7/09/209/09/20

Keywords

  • Congestion management
  • Dynamic smart charging
  • Electric vehicles
  • Load flow analysis
  • Low voltage network

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