Modified magnetic equivalent circuit of double-stator single-rotor axial flux permanent magnet machine considering stator radial-end flux-leakage

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-01 DOI:10.1049/elp2.12379

Jixuan Chen, Wei Hua, Lingyun Shao, Zhongze Wu, Xueyi Yan, Wentao Zhang

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Abstract

A modified non-linear magnetic equivalent circuit (MEC) model is presented for double-stator single-rotor axial flux permanent magnet (AFPM) (DSSR-AFPM) machine considering stator radial-end flux-leakage, which is severer under a heavier load. Compared to the conventional MEC model for DSSR-AFPM machine, the proposed model can predict the electromagnetic performance more accurately when the machine operates under a heavy load. The proposed MEC model is verified by the finite element analysis (FEA) on a 24-slot/20-pole DSSR-AFPM machine. The comparison results show that the relative error between the proposed MEC model and FEA is <4% for back electromotive force and <5% for average electromagnetic torque, respectively. Specifically, the relative error of the average torque for the modified MEC model is 4.92% at 28.30 Arms/mm² slot current density, which is lower than the conventional MEC model, that is, 7.75%.

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考虑定子径向端漏磁通的双定子单转子轴向磁通永磁机的修正磁等效电路

本文针对双定子单转子轴向磁通永磁（AFPM）（DSSR-AFPM）机器提出了一种改进的非线性磁等效电路（MEC）模型，该模型考虑到了定子径向端漏磁通（在重负载下漏磁通更为严重）。与 DSSR-AFPM 机器的传统 MEC 模型相比，所提出的模型能更准确地预测机器在重负载下运行时的电磁性能。通过对 24 槽/20 极 DSSR-AFPM 机器进行有限元分析 (FEA) 验证了所提出的 MEC 模型。比较结果表明，所提出的 MEC 模型与有限元分析之间在反向电动势和平均电磁转矩方面的相对误差分别为 <4%和 <5%。具体而言，在 28.30 Arms/mm2 槽电流密度条件下，改进的 MEC 模型的平均扭矩相对误差为 4.92%，低于传统 MEC 模型的 7.75%。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.