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Losses in the Saturated Iron-Core Superconducting Fault Current Limiter for VSC-HVDC System

  • Boyang Shen
  • , Xiaoyuan Chen*
  • , Lin Fu
  • , Mingshun Zhang
  • , Shan Jiang
  • , Jie Sheng
  • , Wei Wang
  • , Yujia Zhai
  • , Yupeng Yuan
  • , Shuo Gao
  • , Wafa Ali Soomro
  • , Youguang Guo
  • , Sheng Wang
  • , Chuanyue Li
  • , Xingming Bian
  • , Hongwei Liu
  • , Zhongting Zheng
  • , Chao Li
  • , Runtao Zhang
  • , Yavuz Ozturk
  • Yi Liu, Jiabin Yang, Tim Coombs
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the loss analysis on the saturated iron-core superconducting fault current limiter (SISFCL) for a VSC-HVDC transmission system. The numerical model of SISFCL as well as its loss calculation on superconducting parts were carried out by the finite-element method (FEM) using the H-formulation merged into the commercial package COMSOL. The SISFCL model was established for a practical ±10 kV VSC-HVDC system, and the fault current situation was simulated using the PSCAD with a SISFCL. The capability of fault current limiting was verified using the analysis of electromagnetic characteristics, and the corresponding patterns of magnetic field in the iron-core were studied. During the process of fault current limiting, the instantaneous power losses in the superconducting components were studied with the increasing DC bias current. Even in a DC grid system, results proved there were considerable amounts of losses occurred in the superconducting parts, when the SISFCL encountered the fault currents.

Original languageEnglish
Article number9454391
JournalIEEE Transactions on Applied Superconductivity
Volume31
Issue number8
DOIs
StatePublished - Nov 2021

Keywords

  • AC loss
  • Voltage source converter based high voltage direct current (VSC-HVDC)
  • finite element method (FEM)
  • high-temperature superconducting (HTS) coil
  • saturated iron-core superconducting fault current limiter (SISFCL)

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