Roebel cables assembled with high temperature superconducting tapes are a promising technology for several AC and DC applications. Their mechanical flexibility and compact design, combined with the capability of REBCO tapes to carry high transport currents in intense magnetic fields make them suitable for the application both in power devices and high field magnets. In this paper, an electro-thermal finite-element model developed at the University of Bologna (Italy) is described. The model allows computing the current and heat redistribution between the strands of the cable and from turn to turn inside a winding through non-uniform distributed thermal and electrical resistances between strands. The tape is ‘homogenized’ so as to create an anisotropic continuum model through a previously developed homogenization technique. The model is validated by comparison with quench tests performed on a well instrumented 7-turn pancake coil wound with a 2 m long Roebel cable composed of 15 REBCO tapes. The experiments were performed at the University of Southampton (UK) in the frame of the R&D activities of the EuCARD-2 project. The quench decision time, the temperature and electric potential evolution, the current and heat redistribution between strands in the event of a quench are analysed and discussed in the present study.

用高温超导胶带组装的 Roebel 电缆是适用于多种交流和直流应用的有前途的技术。它们的机械灵活性和紧凑的设计，再加上 REBCO 胶带在强磁场中承载高传输电流的能力，使其适用于功率器件和高场磁体中的应用。在本文中，描述了在博洛尼亚大学（意大利）开发的电热有限元模型。该模型允许通过股线之间非均匀分布的热阻和电阻来计算电缆股线之间以及绕组内匝间的电流和热量重新分布。胶带被“均质化”，以便通过先前开发的均质化技术创建各向异性连续体模型。该模型通过与在仪表良好的 7 匝扁平线圈上进行的淬火测试进行比较来验证，该线圈缠绕有 2 m 长的 Roebel 电缆，由 15 个 REBCO 带组成。这些实验是在南安普敦大学（英国）在 EuCARD-2 项目研发活动的框架内进行的。在本研究中分析和讨论了淬火决定时间、温度和电势演变、在淬火事件中股线之间的电流和热量重新分布。