Study of a 5 T Research Dipole Insert-Magnet Using an Anisotropic ReBCO Roebel Cable
Study of a 5 T Research Dipole Insert-Magnet Using an Anisotropic ReBCO Roebel Cable
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DOI：
10.1109/tasc.2014.2361797
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发表时间：
2015-06
影响因子：
1.8
通讯作者：
J. van Nugteren;G. Kirby;G. de Rijk;L. Rossi;H. T. ten Kate;M. Dhallé
中科院分区：
文献类型：
--
作者：
J. van Nugteren;G. Kirby;G. de Rijk;L. Rossi;H. T. ten Kate;M. Dhallé
对EUCARD-2五特斯拉高温超导研究(FEETER)磁体的线圈布局进行了设计研究。考虑了用过的REBCO罗贝尔电缆的临界电流与角度的关系。这将产生一个名为Align BLOCK的新线圈布局。这种布局通过将所有磁带与磁力线对齐来优化利用REBCO涂层导体的各向异性。给出了二维截面和三维线圈布置。在布局中，电缆边缘的磁场角度最大，导致临界电流在其宽度上有很大的变化。给出了不同的计算临界电流的方法，包括带内和带间均流两种情况。将这些值与使用电缆的非线性网络模型找到的值进行比较，在该模型中，元件的电属性被计算为磁场和磁场角度的函数。该模型还包括使用附加网络元件的线束之间的电接触。
A design study is presented for the coil layout of the EUCARD-2 Five Tesla HTS Research (FeaTHeR) magnet. The angular dependence of the critical current in the used ReBCO Roebel cable is taken into account. This leads to a new coil layout named aligned block. This layout makes optimal use of the anisotropy of the ReBCO coated conductor, by aligning all tapes with the magnetic field lines. Both two-dimensional cross sections and three-dimensional coil layouts are presented. In the layouts the magnetic field angle is highest at the edges of the cable causing a large variation of the critical current over its width. Different approaches to the calculation of the critical current, with and without current sharing in and between the tapes, are presented. The values are compared to the values found using a non-linear network model of the cable, in which the electrical properties of the elements are calculated as a function of magnetic field and magnetic field angle. The model also includes electrical contact between the strands using additional network elements.