Analysis of low saliency ratio and torque characteristics of the fractional slot concentrated winding surface mounted motors

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-20 DOI:10.24425/aee.2024.148863

H. Qiu, Dong Wang, Cunxiang Yang, Kun Wang

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引用次数: 0

Abstract

In recent years, fractional slot concentrated winding permanent magnet synchronous motors (FSCW PMSMs) have become a hotspot in the research field. Due to the unique inductance characteristics of the FSCW PMSM, a fast and accurate calculation of the d/q-axis inductance and saliency ratio is necessary. In this paper, a method is proposed to calculate the d/q-axis reactance of the FSCW SPMSM, which constructs the equivalent magnetic circuit model of the d/q-axis armature reaction flux separately, and the saliency ratio characteristics of the FSCW SPMSM were demonstrated. In addition, to meet the high requirements of the modern industries, especially in servo systems, accurate consideration of the effect of stator resistance on torque and electromagnetic performance is important and more applicable. According to the relationship between the vector parameter, the explicit expression of the d/q-axis currents that consider the stator resistance is obtained, and the prediction of load angle at maximum electromagnetic torque is achieved. Then, combined with the finite element method, the influence mechanism of stator resistance on the motor steady-state performance is revealed. Finally, the experimental data are compared with the calculation data, and the correctness of the models and analysis was verified.

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分数槽集中绕组表面安装电机的低延迟比和扭矩特性分析

近年来，分数槽集中绕组永磁同步电机（FSCW PMSMs）已成为研究领域的一个热点。由于 FSCW PMSM 具有独特的电感特性，因此需要快速准确地计算 d/q 轴电感和突出比。本文提出了一种计算 FSCW SPMSM 的 d/q 轴电抗的方法，该方法分别构建了 d/q 轴电枢反应磁通的等效磁路模型，并展示了 FSCW SPMSM 的突出比特性。此外，为了满足现代工业，尤其是伺服系统的高要求，准确考虑定子电阻对转矩和电磁性能的影响非常重要，也更加适用。根据矢量参数之间的关系，得到了考虑定子电阻的 d/q 轴电流的明确表达式，并实现了最大电磁转矩时负载角的预测。然后，结合有限元法，揭示了定子电阻对电机稳态性能的影响机理。最后，将实验数据与计算数据进行对比，验证了模型和分析的正确性。

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

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.