To mitigate the inherent torque ripple in flux-reversal machines (FRMs), this study aims to propose a synergistic reconstruction topology. By modulating air gap harmonics and suppressing inter-pole leakage, this configuration resolves the conflict between torque density and stability, achieving significantly enhanced torque performance.
First, a synergistic reconstruction topology is proposed to unify stator, rotor and magnet designs. Second, to address high-dimensional conflicts, a hierarchical optimization strategy based on the Pearson Correlation Coefficient (PCC) is developed. The electromagnetic performance is rigorously evaluated using 2D Finite Element Analysis (FEA) based on the Maxwell Stress Tensor principle. Finally, a comprehensive comparative analysis against a conventional FRM is conducted under no-load, rated-load and overload conditions to validate the performance superiority.
The results indicated that the motor exhibited the best overall performance. Compared to traditional FRMs, it features increased harmonic components, reduced interpole leakage, 22.8% improvement in average torque and 57.2% reduction in torque ripple.
This study proposes a synergistic reconstruction topology and a PCC-based optimization strategy. Beyond establishing a generalizable design framework, the work demonstrates industrial feasibility using standard materials. The achieved 57.2% ripple reduction and high torque density offer significant economic benefits through reduced raw material consumption and maintenance costs, bridging theoretical innovation with practical engineering value.
