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A Novel Dual-Rotor, Axial Field, Fault-Tolerant Flux-Switching Permanent Magnet Machine With High-Torque Performance

机译:具有高转矩性能的新型双转子,轴向磁场,容错磁通开关永磁电机

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摘要

This paper proposes a novel dual-rotor, axial field, fault-tolerant flux-switching permanent magnet machine (FSPMM) with high-torque performance for direct-drive applications, in which the phase-group concentrated-coil windings and the unaligned arrangement of the two rotors are used. The adoption of the phase-group concentrated-coil windings is made to obtain a unity displacement winding factor, and to enhance the flux-focusing effects together with the use of a spoke-type PM configuration. The unaligned arrangement of the two rotors will help to achieve increased flux magnification and also to suppress the cogging torque and the torque ripple. In particular, the proposed configuration for FSPMMs exhibits the advantage of fault tolerance, benefiting from the electromagnetic isolation of phases and a dual three-phase channel of supply. The operating principle and the design criteria of the proposed FSPMM are discussed in detail. To highlight the advantages of the proposed FSPMM, two conventional FSPMMs are adopted for comparison under the same operating conditions based on a 3-D finite-element method. As a result, it is demonstrated that the proposed FSPMM exhibits significantly improved performance with not only higher torque (power) density but also lower cogging torque and torque ripple, compared with the conventional FSPMMs.
机译:本文提出了一种新型的具有高转矩性能的双转子,轴向磁场,容错磁通量开关永磁电机(FSPMM),用于直驱应用,其中相组集中线圈绕组和绕组的不对准布置使用两个转子。采用相组集中线圈绕组是为了获得单位位移绕组因数,并与轮辐型PM配置一起使用,以增强磁通聚焦效果。两个转子的未对准布置将有助于实现更高的磁通量放大倍率,并且还将抑制齿槽转矩和转矩波动。尤其是,针对FSPMM的建议配置具有容错优势,这得益于相的电磁隔离和双三相电源通道。详细讨论了所提出的FSPMM的工作原理和设计标准。为了突出提出的FSPMM的优势,基于3-D有限元方法,在相同的工作条件下,采用了两个常规的FSPMM进行比较。结果表明,与传统的FSPMM相比,所提出的FSPMM不仅具有更高的转矩(功率)密度,而且具有更低的齿槽转矩和转矩脉动,显示出显着改善的性能。

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