Performance analysis of Axial-Radial Flux Type Fully Superconducting Synchronous Motor

According to the novel structure of Axial-Radial Flux Type Fully Superconducting Synchronous Motor (ARFTFSSM), the 3D transient electromagnetic field mathematics model of the High Temperature Superconducting (HTS) synchronous motor integrated with HTS armature windings in the stator and HTS field coils in the end cover is established. No-load and load flux distributions, no-load properties, no-load flux densities in air gap and magnetic end ring, and electromagnetic torque under different armature currents are obtained by 3D Finite Element Method (FEM). Based on the electromagnetic field analyses, the saturation degree of stator iron core is analyzed under different armature currents. And the influences of HTS axial Magnetic Motive Force (MMF) on radial air-gap flux density, no-load back EMF, and electromagnetic torque are studied. The experiments on the prototype are performed. And the obtained conclusions are helpful for the further study on large capacity fully superconducting synchronous motor.