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Influence of magnet arrangement on performance of flux reversal permanent magnet machine

机译：磁体布置对反向磁通永磁电机性能的影响

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摘要

This paper provides a comprehensive analysis of performance difference in the flux reversal permanent magnet (FRPM) machines with various magnet arrangements. The influence of different PM arrangements on working airgap flux density harmonics is firstly revealed. The torque variation against rotor pole number for four PM arrangements is then analyzed. Results show that each arrangement exhibits superiority in different ranges of rotor pole number. In addition, the electromagnetic performances of four PM arrangements with associated optimal rotor pole numbers are compared. It indicates that the FRPM machine, in which four PM pieces are mounted on each stator tooth and two adjacent magnets on different stator teeth are of opposite polarities, offers the highest torque density and the highest efficiency, which makes it promising in low-speed high-torque applications.
机译：本文对具有各种磁体布置的磁通反向永磁（FRPM）机器的性能差异进行了全面分析。首先揭示了不同的PM布置对工作气隙通量密度谐波的影响。然后分析了四个PM装​​置相对于转子极数的转矩变化。结果表明，每种布置在不同的转子极数范围内均具有优越性。另外，比较了四个具有相关的最佳转子极数的PM装置的电磁性能。这表明FRPM机器具有最高的转矩密度和最高的效率，其中在每个定子齿上安装了四个永磁体，而在不同定子齿上的两个相邻磁体具有相反的极性，这使其在低速高转速下具有广阔的前景-扭矩应用。

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