Design of a Dual-Stator Flux-Barrier Spoke-Array Vernier Permanent Magnet Motor for Enhancing Average Torque Production and Impact of Rare-Earth Magnets on Torque

Nowadays, with the growing emphasis on clean energy and renewable resources, the use of permanent magnet (PM) electric motors has garnered significant attention. One of the latest types of PM motors is the Vernier permanent magnet motor (VPM). This paper focuses on analyzing and evaluating a spoke-type Vernier permanent magnet motor (SVPM). The main innovation and contribution of this study is the introduction of a dual-stator configuration for the spoke-type Vernier permanent magnet motor. Dual-stator spoke-type Vernier permanent magnet motors (DSSA-PMVM) typically lacking flux barriers on their rotors. In this research, a novel design incorporating magnetic flux barriers into such motors has led to the development of a new motor architecture. The dual-stator spoke-type Vernier permanent magnet motor with flux barriers (DSSA-FBPMVM) effectively addresses some of the challenges inherent to traditional Vernier motors. Vernier motors are generally characterized by high torque output at low speeds; however, a notable drawback is their low power factor. The DSSA-FBPMVM not only enhances the torque output compared to the SVPM within the same volume but also overcomes the low power factor issue of the SVPM, achieving a relatively desirable power factor. The analysis and evaluation method used in this study is based on the two-dimensional finite element method (۲D FEM).

Keywords:

Power Factor , Average output torque , Finite element method , Vernier Permanent Magnet Motor , Dual-stator Flux-barrier