Electromagnetic Characteristic Analysis of Superconducting Cables

Compared to conventional power cables, high-temperature superconducting cables have advantages such as high current-carrying capacity, low losses, compact structure, and no electromagnetic radiation. The application of high-temperature superconducting cables is of great significance for the future power system in terms of high-power, long-distance transmission of electrical energy [1], as well as energy saving and emissions reduction. In order to better understand and use superconducting cable in engineering practice, this paper focuses on the electromagnetic characteristics of superconducting cables. Firstly, the effects of temperature and magnetic field on the critical current of high-temperature superconducting tapes are analyzed, and an anisotropic model is proposed. Then, due to the limitations of traditional 2D model in accuracy and traditional 3D model in simplicity, a 2D finite element simulation modeling method applicable to the spiral winding structure of superconducting cables is presented, and this method is used to analyze the electromagnetic characteristics of superconducting cables.