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A high-temperature superconductor (HTS) field coil with a novel, step-shaped cross section is proposed for large-capacity superconducting machine applications. The design of the structure is explained in detail, and comparisons are made with conventional coils. The electromagnetic characteristics are also analyzed in comparison with the conventional alternative. From the analysis, the overlapping...
In this paper, a step-shaped field coil for large capacity superconducting motors application is investigated. As compared to a conventional rectangular cross-sectional shaped field coil, the step-shaped one can obtain the same air gap magnetic field intensity at a target point located at symmetry axis of field coil with reduced HTS tape consumption, and it also improves the critical current significantly...
For high power applications, the first generation (1 G) high Tc superconducting (HTS) tapes have demonstrated applicable properties and can be produced in one thousand meters in length to make HTS coils. In term of the superconducting performance, the second generation (2 G) developed is superior to the 1 G, i.e. the critical current of 2 G is higher than the 1 G tape. However the detailed traits...
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