Wang Meng, Hou Long, Ju Wenwei, Ma Yan, Guo Zhongkai, Ma Dianguo, Liang Lanju, Liu Haishun, Yang Weiming
School of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang 277160, China.
School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China.
Materials (Basel). 2025 May 16;18(10):2325. doi: 10.3390/ma18102325.
Iron core loss () is the main source of energy dissipation in motors, primarily affected by the stator material, which necessitates the optimization of soft-magnetic materials. In this work, the magnetic characteristics of FeSiB amorphous alloys and their influence on motors were systematically investigated via both experiment and finite-element simulation. It was found that the of the FeSiB core initially decreased significantly during heating but subsequently increased with a further temperature rise. In particular, after annealing at 460 °C for 10 min, the FeSiB core exhibited the lowest of 0.11 W/kg (50 Hz, 1 T) and 5.45 W/kg (1 kHz, 1 T), which correlated well with the changes in the magnetization. With the help of the finite-element analysis, the low of the motor using the FeSiB core was further demonstrated, and was closely associated with the dominance of the stator loss. Additionally, the magnetic flux density cloud and the related electromagnetic torque of the motor were comparatively analyzed to unveil the potential advantages of the current FeSiB core. This work provides an important theoretical basis for the design and development of amorphous/nanocrystalline motors.
铁芯损耗（）是电机能量耗散的主要来源，主要受定子材料影响，这就需要对软磁材料进行优化。在这项工作中，通过实验和有限元模拟系统地研究了FeSiB非晶合金的磁特性及其对电机的影响。研究发现，FeSiB铁芯的在加热过程中最初显著下降，但随后随着温度进一步升高而增加。特别是，在460℃退火10分钟后，FeSiB铁芯表现出最低的，50Hz、1T时为0.11W/kg，1kHz、1T时为5.45W/kg，这与磁化强度的变化密切相关。借助有限元分析，进一步证明了使用FeSiB铁芯的电机的低，并且与定子损耗的主导地位密切相关。此外，对电机的磁通密度云图和相关电磁转矩进行了比较分析，以揭示当前FeSiB铁芯的潜在优势。这项工作为非晶/纳米晶电机的设计和开发提供了重要的理论依据。
