Recovery Characteristics of GdBCO Series-Connected Non-Inductive Coil in Pressurized Liquid Nitrogen for a Resistive SFCL
| Autor: | Tanat Angkoolpakdeekul, Masahiro Shiotsu, Yasuyuki Shirai, Naoya Matsushita, Sota Yanai |
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| Rok vydání: | 2021 |
| Předmět: |
Resistive touchscreen
Materials science Superconducting wire Nuclear engineering engineering.material Condensed Matter Physics Fault (power engineering) 01 natural sciences Leidenfrost effect Electronic Optical and Magnetic Materials Current limiting Electromagnetic coil Boiling 0103 physical sciences engineering Electrical and Electronic Engineering 010306 general physics Circuit breaker |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 31:1-5 |
| ISSN: | 2378-7074 1051-8223 |
| DOI: | 10.1109/tasc.2021.3067160 |
| Popis: | A SFCL (Superconducting Fault Current Limiter) is expected to limit a fault current and to improve system stability and operation flexibility in electric power system which is becoming more and more complicated and larger-scale. In order to put SFCL into practical use, it is important for quick recovery to improve the cooling property of a superconducting wire. Especially in resistive SFCL, the superconductor turns to the resistive state for current limiting performance, then the temperature of the superconductor rises up to the film boiling regime of LN2 heat transfer characteristics. After the fault, the SFCL should recover to the superconducting state (stand-by for repetitive fault) within a short period according to the circuit breaker operation. In this study, to improve current-limiting capability, we used GdBCO series-connected Non-inductive coil for the resistive SFCL and investigated the effect of different applying pressure for improvement of its recovery characteristics. In addition, we observed the difference of the boiling phenomena on the surface between under pressurized condition and under ambient pressure by a high-speed video camera. |
| Databáze: | OpenAIRE |
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