Research on Transverse Compression Electromechanical Characteristics of CORC Cable Under Curved Load Block

CORC cables have the advantages of high current density, low inductance, and ease of manufacturing, making them one of the best candidate cables for fusion projects. In fusion projects, there is a huge background magnetic field, and the current carrying capacity of the CORC cable can reach the level of ten thousand amperes. Therefore, CORC cables are often affected by significant transverse compressive electromagnetic forces. Excessive transverse compression load can cause irreversible degradation of the current carrying capacity of the CORC cable, thereby affecting its normal operation in fusion projects. Therefore, it is crucial to improve the ultimate transverse compressive load that CORC cables can withstand. This article investigates the influence of different winding methods of superconducting tapes under arc-shaped load blocks, as well as the copper plating thickness of superconducting tapes, on the transverse compression load performance of CORC cables. The experimental results show that reducing the number of layers, increasing the number of superconducting tapes per layer, and reducing the copper plating thickness of superconducting tapes can effectively increase the ultimate transverse compression value of CORC cables when the number of superconducting tapes is constant; When the number of superconducting tapes per layer is fixed, increasing the number of superconducting tape layers can also increase the ultimate transverse compressive load value of CORC cables. When the number of layers is fixed, increasing the number of winding layers of the superconducting tape material in each layer can also increase the ultimate transverse compressive load value of the CORC cable. The research results of this article provide a theoretical basis for the parameter design of CORC cables in the future.