Stable Equilibrium Rotor Positions for Three-Phase Switched Reluctance Machine

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-07-01 DOI:10.1541/ieejjia.22007335

Georg Tobias Götz, Philipp Tillmann, Anne von Hoegen, Rik W. De Doncker

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引用次数: 1

Abstract

In mobile applications such as eletric vehicles, weight and installation space are the primary limiting factors that affect the system efficiency and consequently the driving range. Reusing the machine windings of an electrical machine as inductors, e. g. in DC-DC converters for onboard chargers, saves weight and space. However, currents in the machine windings when operating as DC-DC converter can result in undesired torque ripple generated by the machine. Therefore, stable rotor positions of a switched reluctance machine have to be found to prevent it from rotating in DC-DC converter operation mode. In this study, stable rotor positions for a wide range of current distributions are determined, enabling flexibility in the choice of currents. A method to analyze such stable equilibrium positions for switched reluctance motors is presented. The proposed method is used to determine the stable positions that facilitate flexible current distribution between phases. Moreover, locus curves are calculated, simulated, and measured to illustrate and evaluate stable rotor positions for the various current distributions.

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三相开关磁阻电机稳定平衡转子位置

在电动汽车等移动应用中，重量和安装空间是影响系统效率和行驶里程的主要限制因素。重新使用电机的绕组作为电感器，例如在车载充电器的DC-DC转换器中，可以节省重量和空间。然而，当作为DC-DC变换器工作时，机器绕组中的电流会导致机器产生不希望的转矩脉动。因此，必须找到稳定的开关磁阻电机转子位置，以防止其在DC-DC变换器工作模式下旋转。在本研究中，确定了大范围电流分布的稳定转子位置，从而实现了电流选择的灵活性。提出了一种分析开关磁阻电机稳定平衡位置的方法。该方法用于确定稳定的位置，使电流在相间的分布更加灵活。此外，还计算、模拟和测量了轨迹曲线，以说明和评估各种电流分布下转子的稳定位置。

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.