Compact GdBa2Cu3O7–δ coated conductor cables for electric power transmission and magnet applications
Compact GdBa2Cu3O7–δ coated conductor cables for electric power transmission and magnet applications
复制标题
DOI：
10.1088/0953-2048/24/4/042001
复制
发表时间：
2011-04
影响因子：
3.6
通讯作者：
D. C. van der Laan;X F Lu;L F Goodrich
中科院分区：
文献类型：
--
作者：
D. C. van der Laan;X F Lu;L F Goodrich
例如，在电力传输和低电感磁体应用中，需要将高温超导体捆绑在一起形成大电流电缆。到目前为止，采用的布线技术还没有产生紧凑、机械坚固、大电流、灵活的电缆。在这里，我们证明了我们最近才介绍的布线技术能够从满足这些要求的高温超导涂层导体中构建电缆。我们介绍了一种电缆的细节，该电缆由GdBa2Cu3O7 -δ涂层导体缠绕而成，外径为7.5 mm，在76 K和自场下临界电流约为2800 a。紧凑的尺寸和灵活性使该电缆适用于海军和空军的电力传输，并将允许已经安装在电网中的超导输电线路缩小直径。增加电缆工程电流密度的潜力，同时保持灵活性，使它们也适用于高磁场磁铁应用。
Bundling high-temperature superconductors together to form high-current cables is required in, for instance, power transmission and low-inductance magnet applications. Cabling techniques that have been applied so far have not resulted in compact, mechanically robust, high-current cables that remain flexible. Here, we demonstrate that the cabling technique that we have introduced only recently enables the construction of cables from high-temperature superconducting coated conductors that meet these requirements. We present details of a cable, wound from GdBa2Cu3O7–δ coated conductors, that has an outer diameter of 7.5 mm and a critical current of about 2800 A at 76 K and self-field. The compact size and flexibility make the cable suitable for Navy and Air Force power transmission, and would allow superconducting power transmission lines that have been installed in the electric power grid to be reduced in diameter. The potential of increasing the engineering current density of the cable, while maintaining flexibility, makes them also suitable for high-field magnet applications.