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首页> 外文期刊>Magnetics, IEEE Transactions on >Comparison of Complementary and Modular Linear Flux-Switching Motors With Different Mover and Stator Pole Pitch
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Comparison of Complementary and Modular Linear Flux-Switching Motors With Different Mover and Stator Pole Pitch

机译：带有不同运动和定子极距的互补和模块化线性磁通开关电动机的比较

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摘要

Linear flux-switching permanent magnet (LFSPM) motors with both permanent magnets and armature windings on the short primary mover have attracted considerable attention due to their simple and cheap stator which only consists of iron. Hence, this kind of liner motor is very suitable for long stator applications such as in urban rail transportations. However, the conventional LFSPM motors directly split from rotary FSPM motor suffer from drawbacks such as unbalanced magnetic circuit of end coil, heavy mover, and bigger cogging force and force ripple. Modular LFSPM (MLFSPM) motors can mitigate the problem of unbalanced magnetic circuit of end coil. But some MLFSPM motors with different stator/mover pole pitch $tau_{s}/tau_{m}=12/14, 12/10$ don't have complementary phase armature windings, which will lead to asymmetrical and non-sinusoidal back-electromotive force, bigger cogging force and thrust force ripple. The key of this paper is to propose, investigate, and compare four complementary and modular structures for the LFSPM motors with different $tau_{s}/tau_{m}$ . The electromagnetic performance and dimensions of the proposed complementary MLFSPM motors with different $tau_{s}/tau_{m}$ are investigated, compared and confirmed by the means of finite element analysis and experimental results. Based on the analysis results, two complementary MLFSPM motors with $tau_{s}/tau_{m}=12/13$ are chosen to be the two best motors, which can offer the biggest thrust force, relatively smaller cogging force and thrust force ripple, and shorter mover length.
机译：在短原动机上同时具有永磁体和电枢绕组的线性磁通量开关永磁体（LFSPM）电动机由于其简单且便宜的定子（仅由铁制成）而备受关注。因此，这种线性电动机非常适合长定子应用，例如城市轨道交通中的应用。然而，直接从旋转FSPM电动机直接分离的常规LFSPM电动机具有诸如端部线圈的磁路不平衡，重动子以及更大的齿槽力和力纹波的缺点。模块化LFSPM（MLFSPM）电动机可以缓解端部线圈磁路不平衡的问题。但是某些具有不同定子/移动极距的MLFSPM电机<公式> = inline“> $ tau_ {s} / tau_ {m} = 12/14，12/10 $ 没有互补的相电枢绕组，这将导致不对称和非正弦的反电动势，更大的齿槽力和推力波动。本文的重点是为具有不同 $ tau_ {s} / tau_ {m}的LFSPM电动机的四个互补和模块化结构提出建议，研究和比较$ 。研究了具有不同 $ tau_ {s} / tau_ {m} $ 的拟议互补MLFSPM电动机的电磁性能和尺寸，通过有限元分析和实验结果进行比较和确认。根据分析结果，两个互补的MLFSPM电动机具有 $ tau_ {s} / tau_ {m} = 12/13 $ 被选为最佳的两个电动机，它们可以提供最大的推力，相对较小的齿槽力和推力波动，以及较短的动子长度。

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