Influence of fault current limiter on isolated operation of customer system with synchronous generator

Daisuke Iioka, Yasunobu Yokomizu, Toshiro Matsumura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Influences of a fault current limiter (FCL) on an isolated operation of a customer system with a synchronous generator are discussed for a fault occurrence. The customer system is supposed to be interconnected to a medium voltage feeder of the utility system through the FCL to reduce the fault current from the customer generator. When the fault occurs at the feeder, the customer system has to be disconnected from the utility system to keep the power supply in the customer system. If the separation of the customer system from the utility one is too late (in other words, if the continuous interconnecting time period after the fault occurrence is too long), the customer generator could not make the shift to the isolated operation mode because of the inadequate balance between the generator and loads. The allowable interconnecting time period to make the successful shift to the isolated operation mode is simulated by using PSCAD/EMTDC. It was found that a resistive type fault current limiter (R-type FCL) does not improve the allowable interconnecting time period since the consumption power in the R-type FCL causes the generator to decelerate. However, it was shown that the allowable interconnecting time period increases owing to the application of inductive type fault current limiter (L-type FCL). This is because the active power of load is nearly equal to the generator output. The influence of reverse power flow out of customer system on the isolated operation was also clarified.

Original languageEnglish
Title of host publicationIEEE Power and Energy Society 2008 General Meeting
Subtitle of host publicationConversion and Delivery of Electrical Energy in the 21st Century, PES
DOIs
Publication statusPublished - 2008 Sep 29
Externally publishedYes
EventIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES - Pittsburgh, PA, United States
Duration: 2008 Jul 202008 Jul 24

Publication series

NameIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES

Other

OtherIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES
Country/TerritoryUnited States
CityPittsburgh, PA
Period08/7/2008/7/24

Keywords

  • Critical disconnection time
  • Distributed generator
  • Fault current limiter
  • Isolated operation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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