Optimal placement of superconducting fault current limiters (SFCLs) for protection of an electric power system with distributed generations (DGs)

Hyung Chul Jo, Sung Kwan Joo, Kisung Lee

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Power flow patterns and fault current levels are influenced by the introduction of distributed generations (DGs) in an electric power system. In particular, the change in the fault current levels caused by DG installation may require a change in the coordination of relays to prevent their misoperation. When DGs are installed in an electric power system, superconducting fault current limiters (SFCLs) can be used to help reduce the fault currents within the breaking capacity of the protective devices. In this paper, multiple criteria such as the number of SFCLs, fault current reduction, and the total operating time of the relays are considered in order to determine the optimal placement of SFCLs for protection of an electric power system with DGs, and a scenario optimization based approach is used to solve the multi-criteria SFCL placement problem. Numerical simulations are also carried out to demonstrate the effectiveness of the proposed approach.

Original languageEnglish
Article number6376118
JournalIEEE Transactions on Applied Superconductivity
Volume23
Issue number3
DOIs
Publication statusPublished - 2013

Keywords

  • Distributed generation (DG)
  • relay coordination
  • superconducting electric power
  • superconducting fault current limiter
  • system studies for superconducting devices

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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