https://doi.org/10.1140/epjs/s11734-024-01365-2
Regular Article
Design and experimental results of a 10 kV resistance-inductance type superconducting fault current limiter
1
School of Electrical Engineering, Beijing Jiaotong University, No.3 Shangyuancun, 100044, Beijing, China
2
Institute of New Converter Technology, Beijing Huairou Laboratory, Beijing, China
3
Joint Laboratory on Power Superconducting Technology of China Southern Power Grid, Guangdong Power Grid Co., Ltd., No. 757 Dongfeng East Road, 510080, Guangzhou, Guangdong, China
Received:
22
April
2024
Accepted:
29
September
2024
Published online:
22
October
2024
Superconducting fault current limiter (SFCL) can be a solution to limit the high and fast fault current of the voltage source controlled high-voltage DC (VSC-HVDC) transmission system. Resistance-inductance type SFCL has a good limiting current effect that can limit the fault current by resistance and inductance together. In this paper, the broadband dynamic model is established to calculate the current and voltage in high current impulse and voltage impulse conditions. The electromagnetic calculation and manufacture of the superconducting current-limiting unit are carried out. The maximum magnetic flux density in steady state and current impulse state is 39.6 mT and 132 mT, respectively. The critical current measurement, current impulse experiment, and lightning impulse experiment are carried out. The experimental results show that the critical current of the current-limiting unit is 390 A, and under the current impulse of 2420 A, the maximum impedance reaches 3.9 , and it passed 75 kV lightning impulse experiment, which ensured that the prototype operated normally.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.