New method for determining iron power losses in switched reluctance motors with laminated and composite magnetic cores

IF 2.5 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2024-10-01 DOI:10.1016/j.jmmm.2024.172565

Marek Przybylski

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引用次数: 0

Abstract

Power losses from motors and drives can decrease their efficiency. The development of devices with high efficiency is a necessity nowadays, with a view to reducing CO₂ emissions. The application of new magnetic materials is one method for increasing the efficiency of motors, although prediction and calculation of the losses in the magnetic circuits of motors are also very important. To reduce the iron losses, iron powder composites are used here instead of Fe-Si laminated steel sheets, in a low-power switched reluctance motor (SRM), and a new method of determining the iron loss in the magnetic circuit is developed. Through the use of new materials in the motor, we can achieve a 19% decrease in the iron loss in comparison to a commercial motor. A comparison of the measurement results for our new method of iron loss prediction showed that the difference is approximately 20-26%, depending on the type of magnetic circuit used for the motor. The usage of soft magnetic composites rather than electrical steel sheets can decrease the loss in magnetic circuits. The results from our new method of determination of iron loss are in good agreement with results of measurements, meaning that it can be applied in a detailed analysis of SRMs. The application of soft magnetic composites in electromagnetic and electromechanical converters is a new method for lowering iron losses in new devices. The determination of such losses in SRMs is still challenging, and the proposed method broadens the state of the art in this area. The method developed here is based on motor current measurements, FEM calculations, and measurements of the magnetisation curves and iron loss for samples according to IEC standards. The results obtained in this work can be used by designers for the development of new kinds of SRMs.

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确定带叠片和复合磁芯开关磁阻电机铁功率损耗的新方法

电机和驱动器的功率损耗会降低其效率。如今，为了减少二氧化碳排放，必须开发高效率的设备。新磁性材料的应用是提高电机效率的方法之一，但电机磁路损耗的预测和计算也非常重要。为了减少铁损耗，在低功率开关磁阻电机（SRM）中使用了铁粉复合材料代替铁硅叠层钢板，并开发了一种确定磁路中铁损耗的新方法。通过在电机中使用新材料，与商用电机相比，我们可以将铁损降低 19%。对我们新的铁损预测方法的测量结果进行比较后发现，根据电机所使用的磁路类型，两者之间的差异约为 20-26%。使用软磁复合材料而不是电工钢片可以降低磁路损耗。我们的铁损测定新方法得出的结果与测量结果非常吻合，这意味着该方法可用于 SRM 的详细分析。在电磁和机电转换器中应用软磁复合材料是降低新设备中铁损耗的一种新方法。SRM 中此类损耗的测定仍具有挑战性，而所提出的方法则拓宽了这一领域的技术现状。本文开发的方法基于电机电流测量、有限元计算，以及根据 IEC 标准对样品的磁化曲线和铁损进行测量。设计人员可以利用这项工作中获得的结果来开发新类型的自润滑器。

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

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.