This article proposes a new dual-stator consequent-pole (CP) flux reversal machine with triple-PM excitation (T-DSCPFRPMM), in which the two stators and rotor are all incorporated with CP permanent magnet (PM) arrangement. The employment of triple-PM excitation is beneficial to enhance the flux densities in the inner and outer air gaps. In addition, the ferromagnetic poles of rotor and stators are, respectively, used to modulate the magnetic field excited by stator-PM and rotor-PM, which introduces the bidirectional flux modulation effect into the proposed machine to enhance the torque production. The topology, operation principle, and design consideration of the proposed T-DSCPFRPMM are analyzed, respectively. The electromagnetic performances of the proposed machine under stator-PM excitation only, rotor-PM excitation only, and triple-PM excitation are evaluated and compared by finite-element analysis. The predicted results show that by using triple-PM excitation, the proposed machine can offer the superior torque production with low torque ripple, excellent overload torque capability, high efficiency and high-power factor, which are desirable for direct-drive applications.

中文翻译：

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新型三重永磁励磁双定子交替极磁通反转电机的设计与分析


本文提出了一种新型双定子交替极（CP）磁通反转电机（T-DSCPFRPMM），其中两个定子和转子均采用CP永磁体（PM）布置。采用三重永磁励磁有利于提高内外气隙的磁通密度。此外，转子和定子的铁磁极分别用于调制定子永磁和转子永磁激发的磁场，这将双向磁通调制效应引入到所提出的电机中以增强扭矩产生。分别分析了所提出的 T-DSCPFRPMM 的拓扑结构、工作原理和设计考虑。通过有限元分析对所提出的电机在仅定子永磁励磁、仅转子永磁励磁和三重永磁励磁下的电磁性能进行了评估和比较。预测结果表明，通过使用三重永磁励磁，所提出的电机可以提供卓越的扭矩产生，具有低扭矩脉动、出色的过载扭矩能力、高效率和高功率因数，这对于直接驱动应用来说是理想的。