Potential estimation of hourly blank storage space and charge loads of EVs using road traffic census and vehicles status

Takuya Oda, Masakazu Ito, Norihiro Kawasaki, Takahiko Miyazaki, Takao Kashiwagi

Research output: Contribution to journalArticle

Abstract

If both EVs (Electric Vehicles, includes plug-in hybrid electric vehicles) and renewable energies spread in large quantities, it is possible to control the supply fluctuation of renewable energies using the storage battery of EVs. This research sought to show the charge load potential of EVs based on the state of the Japanese passenger car using traffic census results, etc. Furthermore, it tried to show the trend of the storage battery capacity according to time. From the estimated results: (1) the charge electricity of low and middle distance gets a majority of the total charge demand, (2) charge load changes according to time several times, and the minimum load is the number of gigawatt-hours at early morning, (3) if night charge is assumed, the standby charge demand of noon will reach tens of gigawatt-hours, it may have sufficient scale for supply fluctuation control of PVs. Although the present EV is not suitable for long-distance running, these are expected to be 30 or less percent of the total charge demand. The estimated storage capacity potential in this research will not change numbers of times.

Original languageEnglish
Pages (from-to)30-38
Number of pages9
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume182
Issue number3
DOIs
Publication statusPublished - 2013 Feb
Externally publishedYes

Keywords

  • charge load
  • electric vehicle
  • plug-in hybrid vehicle
  • renewable energy
  • road traffic census
  • supply fluctuation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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