The AC loss evaluation of central solenoid model coil for CFETR
The AC loss evaluation of central solenoid model coil for CFETR
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DOI：
10.1016/j.fusengdes.2016.03.070
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发表时间：
2016-06
影响因子：
1.7
通讯作者：
Yi Shi;Yuehua Wu;Q. Hao;Bo Liu;Yi Yang
中科院分区：
文献类型：
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作者：
Yi Shi;Yuehua Wu;Q. Hao;Bo Liu;Yi Yang
计算了中国核聚变工程试验堆（CFETR）中央螺线管模型线圈（CSMC）的交流损耗，以便能够根据液氦温度下的可用制冷量及时确定允许励磁电流形状。首先，总结了CFETR CSMC的结构和运行参数，包括超导体、导体和磁场分布特性。其次，介绍了CFETR CSMC的主要交流损耗类型和机理，利用模型数据估计了Nb3Sn和NbTi线圈的磁滞和耦合损耗，并利用ANSYS二维模型计算了模型线圈截面内的磁通密度分布。第三，采用ANSYS/EMAG三维软件分别对拉杆、板、梁模型进行不锈钢结构构件的低频涡流损耗计算。没有考虑几个组件之间的相互作用。在导体接头的情况下，也使用了三维ANSYS程序和电流来获得金属部件的涡流损耗。最后，对各个损耗分量进行了总结。所得结论对CSMC的安全运行具有重要的指导意义。
The AC loss of Central Solenoid Model Coil (CSMC) of China Fusion Engineering Test Reactor (CFETR) is calculated in order to be able to determine the allowable excitation current shape in time with respect to the available cooling capacity at liquid helium temperature. Firstly, the structure and operation parameters of CFETR CSMC are summarized including the superconductor, conductor and magnetic field distribution characteristic. Secondly, the main AC losses type and mechanics of CFETR CSMC are introduced, where the hysteresis and coupling loss of Nb3Sn and NbTi coil are estimated using of the model data and a calculation flux density distribution in the cross-section of model coil by ANSYS 2-D model. Thirdly, the low frequency eddy current loss calculation of stainless steel structural components is carried out by ANSYS/EMAG code with 3-D separately for tension rods, plates and beams model. The interaction between several components is not considered. In the case of conductor joints, a 3-D ANSYS code is also used with current force to obtain the eddy current losses for the metal components. Lastly, the individual loss components are summed up. The significant conclusions are made which can provide the valuable guidance for safe operation of CSMC.