Quench detection utilizing stray capacitances
文献类型：期刊论文
| 作者 | Ravaioli, Emmanuele1; Martchevskii, Maxim1; Sabbi, GianLuca1; Shen, Tengming1; Zhang, Kai2,3,4 |
| 刊名 | Ieee transactions on applied superconductivity
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 28期号:4页码:5 |
| 关键词 | Capacitance Diagnostic High-temperature superconductor Quench detection Superconducting coil |
| ISSN号 | 1051-8223 |
| DOI | 10.1109/tasc.2018.2812909 |
| 通讯作者 | Ravaioli, emmanuele(eravaioli@lbl.gov) |
| 英文摘要 | Fast detection of the occurrence of a quench in a high-field superconducting magnet is required in order to avoid damage due to overheating of the coil's spot when the quench initiated. this problem is particularly challenging for high temperature superconductor (hts) magnets due to the low normal zone propagation velocity. as a result, quench detection is one of the factors presently limiting the application of hts coils. here, a method based on the measurement of the variation of the stray capacitances between the magnet's elements is proposed. upon quench initiation, the capacitances between the elements and the coil vary due to multiple effects, including cryogenic fluid boil-off, variation of the dielectric properties of the insulation material, and thermal expansion, which locally changes the distance between coil and metal parts. results from the first application of this method on a small-scale hts coil are reported and discussed. advantages and limitations of this technique with respect to state of the art quench detection methods are discussed. |
| WOS关键词 | TEMPERATURE SUPERCONDUCTING COIL ; ACCELERATOR MAGNETS ; NORMAL TRANSITIONS ; ACOUSTIC-EMISSION ; DIPOLE MAGNETS ; PROPAGATION ; LOCALIZATION ; CONDUCTORS ; ANTENNAS ; SYSTEM |
| WOS研究方向 | Engineering ; Physics |
| WOS类目 | Engineering, Electrical & Electronic ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000429215200001 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178192 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Ravaioli, Emmanuele |
| 作者单位 | 1.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 4.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Ravaioli, Emmanuele,Martchevskii, Maxim,Sabbi, GianLuca,et al. Quench detection utilizing stray capacitances[J]. Ieee transactions on applied superconductivity,2018,28(4):5. |
| APA | Ravaioli, Emmanuele,Martchevskii, Maxim,Sabbi, GianLuca,Shen, Tengming,&Zhang, Kai.(2018).Quench detection utilizing stray capacitances.Ieee transactions on applied superconductivity,28(4),5. |
| MLA | Ravaioli, Emmanuele,et al."Quench detection utilizing stray capacitances".Ieee transactions on applied superconductivity 28.4(2018):5. |
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来源：高能物理研究所
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