The field modulation electric machine has been paid much attention on account of its excellent performance. A superconducting magnetic-field-modulation (SMFM) electric machine is designed in this article with the full utilization of superconducting properties, which can increase the torque density and greatly reduce the loss. Firstly, the basic model of the SMFM electric machine is shown and compared with the traditional magnetic-field-modulation electric machine (MFM). Secondly, the modulation effect of SMFM electric machine is analyzed by magnetic circuit method. Lastly, the SMFM electric machine is analyzed by the finite element method (FEM). The electromagnetic characteristics show that the SMFM electric machine owns high torque and power density with low loss and torque ripple rate, which verifies SMFM electric machine is superior to the conventional MFM electric machine.

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超导磁场调制电机的设计与分析


场调制电机因其优异的性能而备受关注。本文设计了一种超导磁场调制（SMFM）电机，充分利用超导特性，可以提高扭矩密度并大大降低损耗。首先，展示了 SMFM 电机的基本模型，并与传统的磁场调制电机（MFM）进行了比较。其次，采用磁路法分析了SMFM电机的调制效果。最后，采用有限元法（FEM）对SMFM电机进行了分析。电磁特性表明，SMFM电机具有高扭矩和功率密度，且损耗和扭矩脉动率低，验证了SMFM电机优于传统MFM电机。