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

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

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this paper, we propose a new control algorithm to reduce the capacity of a previously proposed smart charger for electric vehicles (EVs) on single-phase three-wire distribution feeders with reactive power control. The basic principle of the proposed 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 implemented to confirm the validity of the proposed control algorithm using PSIM software. A prototype experimental model is also constructed and tested. Experimental results demonstrate that balanced source currents with a power factor of 0.9, which is acceptable for Japanese home appliances, are obtained on the secondary side of the pole-mounted distribution transformer during both the battery charging and discharging operations in EVs. The capacity of dc capacitor CDC is also reduced by 37% with the proposed reactive power control algorithm.

Original languageEnglish
Article number6823129
Pages (from-to)315-324
Number of pages10
JournalIEEE Transactions on Industry Applications
Volume51
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

Keywords

  • Constant dc-capacitor voltage control
  • reactive power control
  • single-phase d-q transformation
  • single-phase phase-locked loop (PLL) circuit
  • single-phase three-wire distribution system
  • smart charger
  • three-leg inverter

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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