Day-Ahead Forecast of Electric Vehicle Charging Demand with Deep Neural Networks

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Abstract

The increasing penetration rate of electric vehicles, associated with a growing charging demand, could induce a negative impact on the electric grid, such as higher peak power demand. To support the electric grid, and to anticipate those peaks, a growing interest exists for forecasting the day-ahead charging demand of electric vehicles. This paper proposes the enhancement of a state-of-the-art deep neural network to forecast the day-ahead charging demand of electric vehicles with a time resolution of 15 min. In particular, new features have been added on the neural network in order to improve the forecasting. The forecaster is applied on an important use case of a local charging site of a hospital. The results show that the mean-absolute error (MAE) and root-mean-square error (RMSE) are respectively reduced by 28.8% and 19.22% thanks to the use of calendar and weather features. The main achievement of this research is the possibility to forecast a high stochastic aggregated EV charging demand on a day-ahead horizon with a MAE lower than 1 kW.
Original languageEnglish
Article number178
Number of pages14
JournalWorld Electric Vehicle Journal
Volume12
Publication statusPublished - 3 Oct 2021

Keywords

  • aggregated charging demand
  • recurrent neural network
  • feature importance
  • electric vehicle
  • day-ahead forecast

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