| YBCO线圈在低温下的温度仿真分析 |
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| 引用本文： | 张莉,王秋良,王厚生,庞占中. YBCO线圈在低温下的温度仿真分析[J]. 低温与超导, 2012, 0(12): 29-32 |
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| 作者姓名： | 张莉 王秋良 王厚生 庞占中 |
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| 作者单位： | 中国科学院应用超导重点实验室中国科学院电工研究所;中国科学院研究生院 |
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| 摘 要： | 近几年,高温超导线材的制造技术已日趋成熟。作为第二代高温超导带材的代表,YBCO在低温下具有的优点使其在超导磁体领域的应用越来越突出。但是在高温超导磁体的运行中会因为受到扰动而失超。为了探讨这个问题,模拟了一个磁体在低温下(20K左右)有加热点扰动时的稳定性情况,即对YBCO线圈在低温下的工作情况进行了模拟仿真。文中根据实验设计的YBCO单饼线圈参数,利用热传导方程和基本电路方程,采用有限元计算方法,模拟出线圈内部的温度分布。分析仿真结果可以为后续实验设计提供参考。
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| 关 键 词： | YBCO线圈 高温超导 失超 有限元 |
Numerical simulation of the thermal behavior of a YBCO coil at low temperatures |
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| Zhang Li,Wang Qiuliang,Wang Housheng,Pang Zhanzhong. Numerical simulation of the thermal behavior of a YBCO coil at low temperatures[J]. Cryogenics and Superconductivity, 2012, 0(12): 29-32 |
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| Authors: | Zhang Li Wang Qiuliang Wang Housheng Pang Zhanzhong |
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| Affiliation: | 1,2(1.Key Laboratory of Applied Superconductivity,Institute of Electrical Engineering,Chinese Academy of Science, Beijing 100190,China; 2.Graduate School of the Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | The second-generation(2G) YBCO coated superconductor has high critical current density property in low temperature and high magnetic field.In order to operate safely,understanding the stability of high temperature superconductor(HTS) coils is very significant when operating and designing a magnet.In this paper,the thermal behavior of a HTS coil wounded with YBCO tape was presented.Based on the heat conduction equation,a model was built up with the help of finite element method(FEM) software.The temperature distribution as function of time and location was simulated.The simulation results presented the thermal response of a heat disturbance in the coil.Based on the calculated results,issues related to thermal behavior of the YBCO coil such as the magnitude of the disturbance and transport current were discussed.The results calculated in this paper will be helpful for the HTS quench experiment and magnet design. |
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| Keywords: | YBCO coil High temperature superconductivity Thermal behavior |
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