3D Modeling of High-Temperature Superconducting Rotating Field Electrodynamic Maglev Motor

High-Temperature Superconducting (HTS) Rotating Field Electrodynamic Maglev Motor (RFEMM), which 3D finite element method is time-consuming and analytical model has insufficient accuracy, is presented in this paper. Based on magnetic field reconstruction method (FRM) and second order vector potential (SOVP), a 3D calculation model of the motor, which the expression of magnetic field in the air gap, the lift force, torque and power losses were derived respectively, was proposed and verified by 3D transient finite element model. Finally, a small-scale prototype is manufactured, and experiments are carried out to verify the predicted results.