HTS axial flux induction motor with analytic and FEA modeling

• A high temperature superconductor axial flux induction motor and a novel maglev scheme are presented.
• Analytic method and finite element method have been adopted to model the motor and to calculate the force.
• Magnetic field distribution in HTS coil is calculated by analytic method.
• An effective method to improve the critical current of HTS coil is presented.
• AC losses of HTS coils in the HTS axial flux induction motor are estimated and tested.

This paper presents a high-temperature superconductor (HTS) axial-flux induction motor, which can output levitation force and torque simultaneously. In order to analyze the character of the force, analytic method and finite element method are adopted to model the motor. To make sure the HTS can carry sufficiently large current and work well, the magnetic field distribution in HTS coil is calculated. An effective method to improve the critical current of HTS coil is presented. Then, AC losses in HTS windings in the motor are estimated and tested.