Fiber-Optics Quench Detection Schemes in HTS Cables for Fusion Magnets

被引：5

作者：

Colombo, Gabriele ^{[1
]}

Adibi, Sayyed Ashkan ^{[2
]}

Breschi, Marco ^{[1
]}

Caponero, Michele A. ^{[3
]}

Castaldo, Antonio ^{[3
]}

Celentano, Giuseppe ^{[4
]}

della Corte, Antonio ^{[4
]}

Marchetti, Marcello ^{[4
]}

Masi, Andrea ^{[4
]}

Mazzotta, Cristina ^{[3
]}

Muzzi, Luigi ^{[4
]}

Polimadei, Andrea ^{[3
]}

Savoldi, Laura ^{[2
]}

Trotta, Antonio ^{[5
]}

Zanon, Fabio ^{[5
]}

De Marzi, Gianluca ^{[4
]}

机构：

[1] Univ Bologna, Dept Elect Elect & Informat Engn Guglielmo Marconi, I-40126 Bologna, Italy

[2] Politecn Torino, Dipartimento Energia Galileo Ferraris, MAHTEP Grp, Corso Duca Abruzzi, I-10129 Turin, Italy

[3] ENEA, FOS Lab, FSN TECFIS MNF Div, I-00044 Frascati, Italy

[4] ENEA, FSN Dept, Superconduct Sect, I-00044 Frascati, Italy

[5] Eni SpA, Piazzale Enr Mattei 1, I-00144 Rome, Italy

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2024年 / 34卷 / 05期

关键词：

Optical fiber cables; Optical fiber sensors; Temperature sensors; High-temperature superconductors; Strain; Optical fiber testing; Optical fibers; Distributed optical fiber sensors (DOFS); high temperature superconductors (HTSs); optical fibers; quench detection (QD);

D O I：

10.1109/TASC.2024.3356424

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, we report the results from two test campaigns conducted to evaluate the feasibility of implementing a commercially available optical fiber-based distributed sensing technology for Quench Detection (QD) purposes. We successfully characterized the temperature response and sensitivity achievable by this technique when using a bare single mode fiber within a cryogen free cooling system operating in the temperature range from 4 K to 300 K. A fiber was also incorporated into a sample featuring an High-Temperature Superconductor (HTS) stack mounted onto an extruded Aluminum slotted-core cable. Quench-like events were triggered by locally lowering the critical current using the magnetic field produced by a set of permanent magnets placed near the center of the stack. The experiments were carried out at 77 K by cooling the sample through the central channel of the Aluminum core with a forced flow of liquid nitrogen. The test results indicate the viability of this technology as a suitable alternative for QD in long-length HTS cables and motivate further work to develop distributed sensing systems able to work in the conditions foreseen for HTS fusion coils.

引用

页码：1 / 5

页数：5