DC Magnetic Deviation, and its Suppression, of a Matching Transformer in a Series Active Filter

• Hasegawa Hiroshi

  Tokyo Insutitute of Technology

• Srianthumrong Sunt

  Tokyo Insutitute of Technology

• Akagi Hirofumi

  Tokyo Insutitute of Technology

• Fujita Hideaki

  Okayama University

Bibliographic Information

Other Title

• 直列形アクティブフィルタの整合変圧器に生じる直流偏磁とその抑制法
• チョクレツケイ アクティブフィルタ ノ セイゴウ ヘンアツキ ニ ショウジル チョクリュウヘンジ ト ソノ ヨクセイホウ

Abstract

This paper deals with a series active filter for harmonic-current compensation of a large-capacity diode rectifier with a capacitive load. Flux satulation may occur in a series matching transformer for connecting the series active filter to the ac side of the diode rectifier. This paper develops an analog controller of a dc magnetizing current flowing in the matching transformer, along with a model for the controller, to avoid the flux satulation. Operating characteristics of the controller are theoretically and exprimentally discussed, taking into account both an offset voltage in the controller and an error in a current sensor. Finally, this paper discusses a relation between magnetizing characteristics of the matching transformer and the amplitude of the magnetizing current.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 122 (7), 744-751, 2002

  The Institute of Electrical Engineers of Japan

Keywords

• DC magnetic deviation
• magnetizing-current control
• series active filter
• matching transformer

Details

• CRID: 1390001204659393152
• NII Article ID: 10008844815
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.122.744
• ISSN: 13488163
• ISSN: 09136339
• ISSN: http://id.crossref.org/issn/03854221
• ISSN: http://id.crossref.org/issn/03854205
• NDL BIB ID: 6204622
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6204622
• Web Site: http://www.jstage.jst.go.jp/article/ieejias1987/122/7/122_7_744/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed