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中文摘要：
高温超导磁体运行过程中,磁体的热稳定性是磁体能否安全运行和实用化的重要指标。在磁体热稳定性的相关研究中,超导磁体在运行过程中的交流损耗和热传导特性是两个值得研究的问题。因此,文中运用商业有限元软件Comsol构造了YBCO高温超导体的数值仿真模型,通过Comsol中的AC/DC模块和热传导模块的相互耦合,在给予不同频率和不同幅值的交变外磁场激励下,对YBCO高温超导体在运行过程中的温升特性进行实时监测和分析,并计算出其交流损耗。为避免超导体失超,保证其安全稳定运行提供一定的指导。
英文摘要：
In the process of running high temperature superconducting（ HTS） magnet,the thermal stability of magnets is one of the important indicators for its safe operation and practical application as the thermal stability related research of magnet,the ac loss and heat transfer characteristics are two problems which are to be studied worthy of studying. Therefore,using the commercial finite element software Comsol in this paper,the numerical simulation model of YBCO HTS was constructed. Through introducing AC / DC module and heat transfer module,the temperature characteristics of YBCO HTS was really- time monitored and analyzed and its AC loss was calculated in a variety of alternating magnetic field excitation and under the condition of different frequencies,which was to avoid quench and provide some reference for the stable operation of HTS.
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