Optimal Slot/Pole Combination of Axial-Field Flux-Modulated Machines With Split Teeth

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-10 DOI:10.1109/TASC.2024.3456570

Shuai Wang;Mingyao Lin

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Abstract

In this paper, a novel axial-field permanent magnet (AFPM) motor is presented and the optimal stator-slot/rotor-pole combination is explored for great performance. This machine contains two stators with split teeth and an inner rotor with consequent-pole (CP) PMs. The stator configuration achieves a harmonious balance between a high winding factor and an elevated torque amplification capability, while the rotor structure enhances PM utilization. The investigation into the slot/pole combination is primarily driven by two considerations: winding configuration and the number of ferromagnetic pole pieces attached to each main tooth. The introduced CP PM brings about direct component (DC) bias and even-number harmonics in the flux linkage of each winding, which must be eliminated by selecting appropriate winding configurations. Additionally, the number of ferromagnetic pole pieces has a significant influence on the magnetic gearing effect and iron saturation. In this way, the torque characteristics and power factor are compared using the finite element method. A 12-slot/24-flux-modulation-pole (FMP) /19-rotor-pole AFPM machine is fabricated and experimented to confirm the effectiveness.

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带有分齿的轴向磁场流量调制机的最佳槽/极组合

本文介绍了一种新型轴向磁场永磁（AFPM）电机，并探讨了如何优化定子-槽/转子-磁极组合以获得最佳性能。该电机包含两个带分齿的定子和一个带后极永磁（CP）的内转子。定子结构实现了高绕组因数和高扭矩放大能力之间的和谐平衡，而转子结构则提高了永磁发电机的利用率。对槽/极组合的研究主要出于两个方面的考虑：绕组配置和连接到每个主齿上的铁磁极片数量。引入的 CP PM 会在每个绕组的磁通连线中产生直接分量（DC）偏置和偶数谐波，必须通过选择适当的绕组配置来消除。此外，铁磁磁极片的数量对磁齿轮效应和铁饱和也有很大影响。因此，使用有限元法对扭矩特性和功率因数进行了比较。为了证实其有效性，我们制作了一台 12 插槽/24 通量调制极（FMP）/19 转子极 AFPM 机器，并进行了实验。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.