4.6 Review

Smart Charging: A Comprehensive Review

Journal

IEEE ACCESS
Volume 10, Issue -, Pages 134690-134703

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2022.3227630

Keywords

Charging; electric vehicle; prediction; review; smart charging

Funding

  1. European Research Consortium of Informatics and Mathematics (ERCIM)
  2. European Union's Horizon 2020 Research and Innovation Programme [945380, 769850]
  3. H2020 Societal Challenges Programme [769850] Funding Source: H2020 Societal Challenges Programme
  4. Marie Curie Actions (MSCA) [945380] Funding Source: Marie Curie Actions (MSCA)

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Smart charging is crucial for both power systems and electric vehicle users, as it can meet their needs and provide ancillary services to the power grid during emergencies. It also offers significant financial benefits and is currently being piloted worldwide.
Large scale adoption and public acceptance of Electric Vehicles (EVs) require availability of charging stations. Electrification of transport has been identified as the one of the significant factors that would increase the power demand. Management of charger load has become a matter of concern for the power system engineers. Uncoordinated charging can be detrimental to the smooth operation of the power grid. On the contrary, smart charging gives certain amount of control over the charging process with respect to the power grid. Hence, adaptivity of the charging process of EVs in smart charging assists to meet the needs of power system as well as EV users. A smart charger can adjust the charging power according to the power available from the grid, EV user needs, and also support the grid during emergency. Smart charging enables EVs to act as flexible grid resources thereby providing ancillary services to the grid in case of emergency. Further, EV users can gain significant financial benefits through smart timing of their charging against spot market prices. This work presents a comprehensive overview of smart charging thereby explaining its perception, impact, user acceptance, global status and pilot projects. Also, case studies highlighting the benefits of smart charging are presented. This detailed elucidation of smart charging will assist the researchers, and experts of power industry as well as transport to find research initiatives on smart charging at one platform thereby promoting adoption of smart charging.

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