Reducing capacity of smart charger for electric vehicles on single-phase three-wire distribution feeders with reactive power control

Hidenori Tanaka, Takaaki Wakimoto, Toshihiko Tanaka, Masayuki Okamoto, Eiji Hiraki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper proposes a new control algorithm to reduce the capacity of the previously proposed smart charger for electric vehicles (EVs) on single-phase three-wire distribution feeders using reactive power control on the source side. The basic principle of the proposed reactive power control algorithm is discussed in detail. It is shown that controlling the reactive power on the source side reduces the capacity of the previously proposed smart charger. A digital computer simulation is carried out to confirm the validity of the proposed control algorithm using PSIM software. A prototype experimental model is constructed and tested. The experimental results demonstrate that balanced source currents with a power factor of 0.9, which conforms to Japanese regulations, are obtained on the secondary side of the pole-mounted distribution transformer during both the battery charging and discharging operations in EVs reducing the capacity of the smart charger by 31% in comparison to that of the smart charger with the previously proposed control algorithm.

Original languageEnglish
Pages (from-to)437-445
Number of pages9
JournalIEEJ Journal of Industry Applications
Volume3
Issue number6
DOIs
Publication statusPublished - 2014

Keywords

  • Constant DC-capacitor voltage control
  • Single-phase d-q transformation
  • Single-phase three-wire distribution system
  • Smart charger
  • Three-leg inverter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Automotive Engineering
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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