This article proposes a general design method for dual-stator field modulation machines (DSFMMs) that can be separated into two field modulation machine (FMM) portions sharing the key components with each other. The existing permanent-magnet synchronous machines and FMMs can be categorized into R/S types, where R denotes the part that can generate the rotating magnetic field, and S represents the stationary modulator. R and S can be used to derive various DSFMM topologies that take advantage of the high toque density. The combined machines employ the multilayer topology that provides space for multi-PM-excitation and multimodulation. The general design principle, simplest R/S-type machine, and the coupled armature winding configuration are discussed, and the modulated air-gap working harmonic components are investigated. Four representative dual-stator machines are developed based on the proposed method. The proposed hybrid-magnet DSFMM (HM-DSFMM) has the merits of high power factor, low cogging torque, and low torque ripple. The prototype of the HM-DSFMM is manufactured and tested. The result comparisons of the finite-element-analysis prediction and measurement verify the electromagnetic design.

中文翻译：

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新型双定子励磁机的设计


本文提出了一种双定子场调制机 (DSFMM) 的通用设计方法，该方法可以分为两个彼此共享关键组件的场调制机 (FMM) 部分。现有的永磁同步电机和FMM可分为R/S型，其中R表示能够产生旋转磁场的部分，S表示静止调制器。 R 和 S 可用于导出利用高扭矩密度的各种 DSFMM 拓扑。组合机器采用多层拓扑结构，为多相永磁激励和多调制提供空间。讨论了一般设计原理、最简单的 R/S 型电机和耦合电枢绕组配置，并研究了调制气隙工作谐波分量。基于所提出的方法开发了四种代表性的双定子电机。所提出的混合磁体DSFMM（HM-DSFMM）具有高功率因数、低齿槽转矩和低转矩脉动的优点。 HM-DSFMM 原型机已制造并测试。有限元分析预测和测量结果的比较验证了电磁设计。