A Novel Axial Flux–Flux Reversal Motor Design with Optimized Rotor Geometry and Comparative Magnet Analysis
摘要
In this study, an original Axial Flux–Flux Reversal Motor (AF-FRM) design is presented. Its axial structure makes it suitable for household appliances and electric vehicles with dimensional constraints. An innovative motor design featuring high torque, high efficiency, and low torque ripple was developed. In the design of the AF-FRM, the dimensions were determined using a mathematical model, and a complete 3D model was created using simulation software. Performance analyses were conducted using the Finite Element Method (FEM) across a load range of 25% to 125%. In particular, optimization was carried out on the rotor side using the Multi-Objective Genetic Algorithm (MO-GA) to reduce torque ripple and improve motor performance. Additionally, performance results were compared by analyzing different magnet types (NdFeB, SmCo, AlNiCo, and Ferrite), while keeping the magnet arrangement unchanged. The results showed a 39.61% proportional increase in torque. The torque ripple value decreased by a factor of 13 compared to the initial model, reaching 11.2673%. The optimization also contributed to efficiency, with a proportional increase of 4.3%. Moreover, it was confirmed that NdFeB magnets delivered the highest performance among the magnet types analyzed. The designed AF-FRM has a novel axial structure and offers an innovative contribution to the literature. It is a promising alternative for applications requiring low torque ripple, high torque, and high efficiency.