Comparative Study of Two Novel Double-Sided Hybrid-Excitation Flux-Reversal Linear Motors With Surface and Interior PM Arrangements

Comparative Study of Two Novel Double-Sided Hybrid-Excitation Flux-Reversal Linear Motors With Surface and Interior PM Arrangements
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两种表面和内部永磁布置的新型双面混合励磁磁通反转直线电机的比较研究

DOI:
10.1109/tmag.2019.2902439
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发表时间:
2019-03
影响因子:
2.1
通讯作者:
Gerada Chris
Gerada Chris
中科院分区:
工程技术4区
文献类型:
--
作者:
Zeng Zhiqiang;Shen Yiming;Lu Qinfen;Jiang Qian;Gerada David;Gerada Chris

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本文提出了两种表面(S-)和内部(I-)永磁体的新型双面混合励磁磁反转直线电机(DSHEFRLM),并对其进行了比较研究。所提出的电机具有不对称的双面初级配置,使电枢和励磁能够分开放置。通过二维有限元法(FEM),对两种不同槽极组合的电机结构进行了优化,计算了电机的磁场和电磁性能,包括电感、空载磁链、推力特性和永磁退磁能力。通过对比发现,s - dshefrlm具有更大的推力密度,而i - dshefrlm具有更强的通量调节能力。最后,通过三维有限元分析对预测结果进行了验证。
In this paper, two novel double-sided hybrid-excitation flux-reversal linear motors (DSHEFRLM) with the surface (S-) and interior (I-) permanent-magnet(PM) arrangements are proposed and comparatively investigated. The proposed motors feature an asymmetrical double-sided primary configuration which enables the armature and field excitations to be placed separately. Through 2-D finite-element method (FEM), two motor structures with different slot/pole combinations are optimized, and then, the magnetic fields and electromagnetic performances are calculated, including inductances, no-load flux linkage, thrust characteristics, and PM demagnetization capability. By comparison, it is found that S-DSHEFRLMs show larger thrust density while I-DSHEFRLMs exhibit superior flux-adjusting capability. Finally, these predicted results are validated by 3-D FEM.
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