公开(公告)号：US20200287450A1

公开(公告)日：2020-09-10

申请号：US16060890

申请日：2017-06-07

Applicant: Huazhong University of Science and Technology

Inventor： Dawei LI ,  Kangfu XIE ,  Ronghai QU

IPC: H02K21/16 ,  H02K1/17 ,  H02K1/24 ,  H02K1/14 ,  H02K1/27

Abstract: The present invention discloses a stator, a rotor and a multi-working-harmonic permanent magnet motor using the above rotor and the stator, wherein the N poles and the S poles are alternately distributed in a circumference direction of the rotor core or the stator core; any N pole comprises at least one N-pole permanent magnet; any S pole comprises at least one S-pole permanent magnet; and at least two adjacent N pole and S pole has different widths. According to the invention, through the arrangement of magnetic poles with different widths on a rotor or a stator, it is possible to generate magnetic fields containing a plurality of harmonic magnetic fields with high amplitudes so that the harmonic magnetic fields can interact with the magnetic fields generated by the armature windings of the permanent motor to realize the superposition of multi-part torques, thereby further enhancing the outputted torque of the motor. In addition, with the invention, the harmonic permanent fields can be completely decoupled on the frequency, thereby significantly improving the fault tolerance performance of the motor, and as a dual-mechanical-port motor, the motor of the invention can be applied to electric vehicles and other relevant variable transmission field.