Energy Storing and Fault Current Limiting in a Unified Superconducting Magnetic Device

Y. Nikulshin, A. Kafri, Y. Yeshurun, S. Wolfus

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This work describes a novel concept for unifying Superconducting Magnetic Energy Storage (SMES) and an inductive-type Fault Current Limiter (FCL). A single superconducting coil is used both as an energy source for the operation of the SMES and as the field source for saturating the magnetic cores in the FCL. A possible geometry model for the implementation of this concept is suggested and a test case in an 11 kV, 10 MVA network is described for a fully, and 50% charged SMES states. Results show that the Saturated Cores FCL exhibits low insertion impedance and high limiting ratio in both scenarios. The unified SMES-FCL device saves major resources by making the superconducting coil a dual-purpose source, thus opening the door for an easier and efficient implementation of SMES and FCL technologies.

Original languageEnglish
Article number5700405
JournalIEEE Transactions on Applied Superconductivity
Volume33
Issue number5
DOIs
StatePublished - 1 Aug 2023

Bibliographical note

Publisher Copyright:
© 2002-2011 IEEE.

Keywords

  • Fault current limiters
  • magnetic cores
  • power quality
  • superconducting coils
  • superconducting magnetic energy storage

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