A new current balancer in single-phase three-wire secondary distribution Feeders using the correlation coefficients

Hirokazu Fukui, Toshihiko Tanaka, Eiji Hiraki, Shuuji Watanabe, Shinji Fukuma

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes a new current balancer in singlephase three-wire secondary distribution systems using the correlation coefficients. The components of the load currents correlative to the primary side voltage waveform, which correspond to the active currents, are detected in each feeder, then the nonactive and unbalanced-active components are compensated on the source side. The balanced currents with unity power factor are obtained in each feeder. The basic principle of the proposed method is discussed in detail, and then confirmed by digital computer simulation. A prototype experimental system is constructed and tested. Experimental results demonstrate that the balanced source currents with unity power factor are obtained in spite of unbalanced load currents.

Original languageEnglish
Pages (from-to)50-58
Number of pages9
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume169
Issue number1
DOIs
Publication statusPublished - Oct 2009
Externally publishedYes

Keywords

  • Active current
  • Balanced condition
  • Correlation coefficient
  • Current balancer
  • Single-phase three-wire secondary distribution system
  • Unbalanced condition

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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