4.7 Article

Large-scale scenarios of electric vehicle charging with a data-driven model of control

期刊

ENERGY
卷 248, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2022.123592

关键词

Electric vehicle; Controlled charging; Machine learning; Load pro file; Scalable

资金

  1. California Energy Commission [EPC-16-057]
  2. National Science Foundation [1554178]
  3. US Department of Energy [DE-AC02-76SF00515]

向作者/读者索取更多资源

This paper presents a novel modeling approach to generate rapid demand estimates for large-scale scenarios of controlled charging in transportation electrification. The approach utilizes machine learning to model the effect of load modulation control on aggregate charging profiles, replacing traditional optimization approaches. Additionally, statistical representations of real charging session data are used to generate uncontrolled charging demand for various scenarios.
Transportation electrification is forecast to bring millions of new electric vehicles to roads worldwide this decade. Planning to support those vehicles depends on detailed scenarios of their electricity demand in both uncontrolled and controlled or smart charging scenarios. In this paper, we present a novel modeling approach to enable rapid generation of demand estimates that represent the impact of controlled charging for large-scale scenarios with millions of individual drivers. To model the effect of load modulation control on aggregate charging profiles, we propose a novel machine learning approach that replaces traditional optimization approaches. We demonstrate its performance modeling workplace charging control under a range of electricity rate schedules, achieving small errors (2.5%-4.5%) while accelerating computations by more than 4000 times. To generate the uncontrolled charging demand for scenarios with residential, workplace, and public charging we use statistical representations of a large data set of real charging sessions. We demonstrate the methodology by generating diverse sets of scenarios for California's charging demand in 2030 which consider multiple charging segments and controls, each run locally in under 50 s. We further demonstrate support for rate design by modeling the large-scale impact of a new, custom rate schedule for workplace charging. (c) 2022 Elsevier Ltd. All rights reserved.

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