Design of a superconducting inductor for axial concentration flux motor

In this paper, an axial superconducting inductor based on the magnetic flux concentration method is designed. It is made of a NbTi superconducting solenoid and two YBaCuO bulks. The study is focused on the influence of the number of poles in the case of a NbTi solenoid which creates a high magnetic flux density. Its spatial variation is obtained thanks to the YBaCuO bulks. To improve the torque of the motor, the flux density in the air-gap has to be increased. This flux density depends on the inductor dimensions and the superconducting solenoid current density. The influence of the poles number of the inductor is studied. We present the cases of two- and four-poles. Calculations are carried out using the Monte Carlo method. The J-B characteristic of the superconducting wire is taken into account in the calculation of the flux density.