Verification of effect of damper windings on the transient condition of synchronous generator

Junya Matsuki*, Hisao Taoka, Yasuhiro Hayashi, Shigeru Iwamoto, Akihiro Daikoku

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This paper describes the results of an experimental investigation on the effects of the damper winding of a four-pole synchronous generator at a synchronous generator transient. It is known from simulations that the damper winding acts effectively under synchronous generator transient conditions. However, experimental proof has not been obtained yet. Thus, experiments on damper effects were conducted using a laboratory-scale power system. The damper winding of the tested generator consisted of five damper bars for each pole; the number of working damper bars could be changed manually. The damper currents at each bar were measured by a Rogowski coil. FFT analysis was applied to both the damper currents and armature currents under different operating conditions. The relationships between damper currents in the rotor and armature currents in the stator were made clearer than before. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 180(2): 33-42, 2012; Published online in Wiley Online Library ( DOI 10.1002/eej.21278

Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Issue number2
Publication statusPublished - 2012 Jul 30


  • Rogowski coil
  • damper winding current
  • harmonic component
  • saliency
  • transient characteristic
  • verification

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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