Abstract
Using a high-temperature superconducting wire in an on-board superconducting magnet for the maglev train has several advantages: improvement in the stability of the superconducting magnet, improvement in reliability through simplification of the magnet structure, and decrease in the mass of the superconducting magnet and the energy consumed by the on-board cryocooler. Therefore, we examined the feasibility of using 2G wires with a high critical current density in a high magnetic field. We performed numerical analysis to calculate the mass of the superconducting magnet and the energy consumption of the on-board cryocooler, taking into consideration the characteristics of 2G wires. Furthermore, we are now carrying out critical current measurements of 2G wires, while varying experimental conditions such as temperature, magnetic field, magnetic field directions and bending stress and so on.
