Recent Progress of the Quench Detection in the EAST HTS Current Leads Using Distributed Optical Fibers
文献类型：期刊论文
| 作者 | Lu, Hui2,3; Hu, Yanlan2 ; Xiao, Yezheng2; Li, Xiaofei1; Zheng, Longgui1; Yan, Qing3; Zhu, Xinxin3
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| 刊名 | IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
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| 出版日期 | 2023-11-01 |
| 卷号 | 33 |
| ISSN号 | 1051-8223 |
| 关键词 | Distributed optical fiber (OF) high-temperature superconducting current leads (HTSCL) quench detection sensor |
| DOI | 10.1109/TASC.2023.3317182 |
| 通讯作者 | Hu, Yanlan(yanlanghun@ipp.ac.cn) |
| 英文摘要 | High-temperature superconducting (HTS) current leads (CL) made of Bi-2223 superconducting tapes in Experimental and Advanced Superconducting Tokamak (EAST) are connected with the superconducting magnets and power supplies. The quench detection systems consist of primary (resistive voltage-based) and backup (temperature-based) detection systems; due to the required fast response time, the quench detection system for the EAST HTSCL relies primarily on direct voltage measurement. The traditional temperature and voltage detection methods have two main defects. First, to prevent the temperature sensor from high-voltage breakdown, it has to be installed in the rear section of the insulators, leading to its sensitivity decreasing significantly. Second, because the average zone propagation velocity of HTS is around 1/100 similar to 1/1000 of low-temperature superconducting (LTS) materials, the small resistive voltage during quench is very difficult to detect. Distributed optical fibers quench detection (DOFQD) based on Raleigh scattering (RS) can be a solution, which adopts the special communication glass fiber as the sensor. It can continuously monitor temperature changes (0.5 to 2 K) at intervals of 5 mm. At the same time, the method has the advantages of high-voltage resistance and immunity from electromagnetic interference. But the biggest drawback of this method is that the optical fiber (OF) sensor is very brittle in the transverse direction resulting in complicated installation. Recently, the OF sensor has been directly laid inside the insulation layer of the HTSCL and led out of the vessel successfully. Meanwhile, the Parsons discharge test, the thermal shock test, and the vacuum leakage rate test can come up with the technical requirements. The power-on test was shown that DOFQD could detect a quench ahead of voltage measurement when the HTSCL was soaked in the 77 K liquid nitrogen. The next plan is to apply this quench detection method in the EAST HTSCL. |
| WOS关键词 | TEMPERATURE |
| 资助项目 | Research on Performance Improvement and Key Technology of Quench Detection System of EAST Device of China[E05F0K153Z1] |
| WOS研究方向 | Engineering ; Physics |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:001078576600001 |
| 资助机构 | Research on Performance Improvement and Key Technology of Quench Detection System of EAST Device of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/133450]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Yanlan |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Hui,Hu, Yanlan,Xiao, Yezheng,et al. Recent Progress of the Quench Detection in the EAST HTS Current Leads Using Distributed Optical Fibers[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2023,33. |
| APA | Lu, Hui.,Hu, Yanlan.,Xiao, Yezheng.,Li, Xiaofei.,Zheng, Longgui.,...&Zhu, Xinxin.(2023).Recent Progress of the Quench Detection in the EAST HTS Current Leads Using Distributed Optical Fibers.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,33. |
| MLA | Lu, Hui,et al."Recent Progress of the Quench Detection in the EAST HTS Current Leads Using Distributed Optical Fibers".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 33(2023). |
入库方式： OAI收割
来源：合肥物质科学研究院
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