Design of a Flux-Barrier Permanent Magnet Vernier Motor with a Flux Modulation Ring to Enhance Torque Production and Efficiency Factor

Flux-barrier permanent magnet Vernier motors are among the latest magnetic motors developed and optimized in the industry. In these motors, the arrangement of magnets plays a critical role and significantly impacts on the torque density in the rotor-stator gap. This is because the motor's output torque increases with an enhancement of magnetic flux intensity in this gap. The magnetic gearbox effect in the flux-barrier permanent magnet Vernier motors, along with flux modulation, is one of the most critical factors in the design and construction of these motors. Flux modulation in the air-gap generates high torque at low speeds. In this study, inspired by the concept of magnetic gearboxes and by adding a modulation ring to the air-gap of this motor, a novel design for flux-barrier permanent magnet Vernier motors with a gearbox is presented. Using the two-dimensional finite element method (FEM), it has been demonstrated that the designed motor achieves significant improvements in average output torque and power factor compared to previous designs.

کلیدواژه ها:

Power Factor ، Average output torque ، Modulation ring ، Spoke type permanent magnet Vernier motor ، Finite element method