Effect of fault current limiter on shaft torsional torque

Daisuke Iioka, H. Shimizu, Y. Yokomizu, T. Matsumura, I. Kano

Research output: Contribution to journalArticlepeer-review


We investigated the influence of a resistive type (R-type) and inductive type (L-type) fault current limiter (FCL) on the behaviour of the shaft torsional torque of a synchronous generator installed in a consumer system connected to a utility distribution system. In the case that the generator has relatively low natural oscillation frequency f0 under about 40 Hz, the L-type FCL suppresses the maximum value of the shaft torsional torque τsm to lower level than the R-type FCL. The R-type FCL with low limiting resistance may instead increase τsm under the condition of low f0. On the other hand, for higher f0, R-type FCL limits τsm at any limiting resistance as well as L-type FCL. The limiting effect of R-type FCL on τsm is larger than that of L-type FCL.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalInternational Journal of Power and Energy Systems
Issue number1
Publication statusPublished - 2005 Oct 27
Externally publishedYes


  • Distributed generation
  • Fault current limiter
  • Natural oscillation frequency
  • Shaft torsional torque

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Applied Mathematics
  • Electrical and Electronic Engineering


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