基于多布拉格光栅串的ReBCO带材失超探测研究  

Study on quench detecting of ReBCO tape based on multi-Bragg grating series

作　　者：李道政 胡曙阳[1] 乔奇 王梦琳 张震 康芮 朱自安[2,4] 赵玲 徐庆金[2,4] 宁飞鹏 Li Daozheng;Hu Shuyang;Qiao Qi;Wang Menglin;Zhang Zhen;Kang Rui;Zhu Zian;Zhao Ling;Xu Qingjin;Ning Feipeng(Faculty of Science,Beijing University of Technology,Beijing 100124,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京工业大学理学部,北京100124 [2]中国科学院高能物理研究所,北京100049 [3]北京科技大学能源与环境工程学院,北京100049 [4]中国科学院大学,北京100083

出　　处：《低温与超导》2022年第5期19-24,共6页Cryogenics and Superconductivity

基　　金：中国科学院基础前沿科学研究计划从0到1原始创新项目(ZDBS-LY-SLH016)资助。

摘　　要：高温超导电缆、线圈和磁体的失超探测一直都是一个难点。利用基于光纤光栅传感技术的多光栅串温度监测系统,通过检测温度的实时变化为快速探测失超并准确找到失超点提供了一种新的方法。通过多次对高温超导带材失超探测实验,结果表明,在超导带材失超时,多光栅串会同时发生中心波长位移,表明带材温度变化可以被光栅串实时监测。通过理论计算和实验测定,验证了基于多光栅串探测高温超导失超的可行性,为后续的高温超导磁体和超导电缆的失超探测提供了一种新方法。Quench detection of HTS cables, coils and magnets has always been a challenge.A multi-grating string temperature monitoring system was used to detect the real-time temperature changes for rapid detection of quench and accurate detection of quench points to offer a new way based on fiber grating sensing technology.Through several quench detection experiments on HTS tapes, the results show that the center wavelength shift of multiple grating strings will occur at the same time when the superconducting tape quenches, indicating that the temperature changes of the tapes can be monitored in real time by the grating strings. Through theoretical calculations and experimental measurements, the feasibility of detecting HTS quench based on multiple grating strings is verified, which provides a method for subsequent quench detection of HTS magnets and superconducting cables.

关 键 词：高温超导 多光栅串 光纤光栅 失超探测 

分 类 号：TM725[电气工程—电力系统及自动化]