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摘 要 ：研究超导磁储能磁体在动态载荷作用下的热稳定性，基于有限元方法构建了直接冷却高温超导超导磁储能磁体的数学模型，进行了充放电过程磁体温度场仿真，研究表明在间断载荷作用下磁体具有较好的热稳定性，在连续载荷作用下，控制励磁电流速度和间隔时间可保证磁体的运行温度在30K以下。 关键词 ：SMES 高温超导磁体 有限元 数值模拟 温度场 Simulation Analysis For Temperature Field Of Smes Magnet On Dynamic Load At Low Temperature Wu Gang1 Wang Huiling2 Du Hu1 1. Department of Mechanism, Naval Univ of engineering ,Wuhan ,430033 China 2. Department of Cryogenics engineering, Huazhong University of Science and Technology, Wuhan 430074 China Abstract: In order to research dynamic thermal stability of SMES magnet, mathematics model of the magnet was established based on Finite element method ( FEM ). Simulation of temperature field was carried out when magnet was charged and discharged. The result of simulation shows the magnet be provided with favorable thermal stability on interrupted load and be ensured operating temperature under 30K by controlling rate and alternation time of excitation current on continuum load. keywords: SMES HTS magnet Finite element method(FEM) numerical Simulation temperature field.