Axial flux induction motor, design and evaluation of steady state modeling using equivalent circuit

This paper presents a design algorithm of a dual rotor axial flux induction motor, constructed from two cage rotors and a toroidal wound stator. The steady state performance of the motor is analyzed using equivalent circuit and time stepping 3D finite elements method (FEM). The results show the correctness of proposed design algorithm and also show the high accuracy of equivalent circuit model for steady state behavior prediction of axial flux induction motor. Furthermore it is shown that 2D FEM can calculate the motor torque pulsations with good precision in much less time. The proposed design by use of equivalent circuit as a simple model can be used for optimum design of such motor.