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Losses in the saturated iron-core superconducting fault current limiter for VSC-HVDC system

Shen, Boyang, Chen, Xiaoyuan, Fu, Lin, Zhang, Mingshun, Jiang, Shan, Sheng, Jie, Wang, Wei, Zhai, Yujia, Yuan, Yupeng, Gao, Shuo, Soomro, Wafa Ali, Guo, Youguang, Wang, Sheng, Li, Chuanyue, Bian, Xingming, Liu, Hongwei, Zheng, Zhongting, Li, Chao, Zhang, Runtao, Ozturk, Yavuz, Liu, Yi, Yang, Jiabin and Coombs, Tim 2021. Losses in the saturated iron-core superconducting fault current limiter for VSC-HVDC system. IEEE Transactions on Applied Superconductivity 31 (8) , pp. 1-5. 10.1109/TASC.2021.3089123

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1051-8223
Last Modified: 31 Jan 2022 07:44
URI: https://orca.cardiff.ac.uk/id/eprint/143496

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