Expected Regret-Based Method for Determining Impedance of Fault Current Limiting Superconducting Cable Incorporating Power System Uncertainties

Hyung Chul Jo, Sung-Kwan Joo

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1 Citation (Scopus)

Abstract

In a medium-voltage power system, fault currents are subjected to uncertainties in lines and distributed generations. Uncertainties in fault currents in a power grid can introduce system protection problems. Superconducting cable with fault current limiting capability can be used as means to meet the increasing electricity demand while resolving the issues involving system protection. In order to integrate the fault current limiting superconducting cable into a power grid, its impedance selection under fault conditions needs to consider the impact of power system uncertainties on system protection. In this paper, an expected regret-based method is proposed for determining the impedance of the fault current limiting superconducting cable incorporating the uncertainties in fault currents. The results of numerical simulations are presented to show the effectiveness of the proposed expected regret-based impedance selection method.

Original languageEnglish
Article number7828089
JournalIEEE Transactions on Applied Superconductivity
Volume27
Issue number4
DOIs
Publication statusPublished - 2017 Jun 1

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Keywords

  • Fault current
  • power system protection
  • power system uncertainty
  • superconducting cable
  • 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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