Battery-assisted charging system for simultaneous charging of electric vehicles

Muhammad Aziz, Takuya Oda, Masakazu Ito

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

A battery-assisted charging system has been developed to improve the charging performance of a quick charger for electric vehicles. The developed system mainly consists of an alternating current-to-direct current inverter, a direct current-to-direct current voltage converter, a stationary battery, and an electric vehicle charger. The difference in charging rates in different seasons (winter and summer) was determined initially to measure the effect of electric vehicle battery temperature (influenced by surrounding temperature) on the charging rate. The charging rate during summer was higher than that during winter. In addition, simultaneous charging experiments were performed in different seasons (winter and summer) and for different contracted power capacities (50, 30, and 15 kW). Compared to a conventional charging system, the developed system can improve the charging performance of electric vehicle chargers in terms of the charging rate, while maintaining the contracted power capacity.

Original languageEnglish
Pages (from-to)82-90
Number of pages9
JournalEnergy
Volume100
DOIs
Publication statusPublished - 2016 Apr 1

Keywords

  • Battery assistance
  • Charging rate
  • Contracted power capacity
  • Electric vehicles
  • Quick charging

ASJC Scopus subject areas

  • Energy(all)
  • Pollution

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