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Heavy-duty electric vehicle charging profile generation method for grid impact analysis

Abstract

The transport sector is responsible for 20 % of the global CO 2 emissions. By transitioning from internal-combustion engine to battery-electric vehicles, there is a big potential in reducing the emissions. The upcoming heavy-duty electric vehicles (HDEVs) are expected to have a charging power between 100-1600 kW. A transition to HDEVs can cause challenges to the power grid to deliver the charging power needed. In this paper, a methodology to model the load profile of a high-power charging station for HDEVs is proposed. Generated load profiles with different future shares of HDEVs are used to study the impact on the power grid in a representative area in Norway. The loading of the regional substation exceeds its rated capacity when the share of HDEV is 25%, and its thermal limit when the share is increased to 50%. Extending the mandatory breaks for the drivers, and a corresponding reduction of the charging power, shows promising results.

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 257626
  • Research Council of Norway (RCN) / 295133

Language

English

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Energisystemer

Year

2021

Publisher

IEEE

Book

2021 International Conference on Smart Energy Systems and Technologies - SEST

ISBN

978-1-7281-7660-4

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