Magnetic field analysis of a novel double stator linear-rotary permanent magnet motor

As the complexity of modern industrial drive systems, the two degree of freedom (2-DOF) operation is needed in the many industry drive applications [1]. Linear rotary permanent magnet (LRPM) motor with the simple structure, high power/mass ratio and good dynamic performance has been presented for 2-DOF motion in recent years [2]-[4]. A novel double stator linear and rotary permanent magnet (DSPLRPM) motor is proposed in this paper. The equivalent magnetic circuit model (EMCM) of the motor is established, and the magnetic field is analyzed. The results are confirmed by that of 3D finite element analysis (FEA).