Research and Optimization of a Novel Flux-Modulated Permanent Magnet Vernier Machine

This paper presents a novel flux-modulated permanent magnet vernier machine (PMVM). Compared with conventional PMVM, the new structure has slotted rotor and its PMs are placed on the inner surface of stator. First, the working principle, flux modulation theory, is introduced by analytical method. Then the performance of novel PMVM is calculated by 2D finite element method (FEM). Nondominated sorting genetic algorithm II (NSGA-II) based on response surface surrogate model is used to optimize the proposed PMVM to get higher torque and power factor.