The pulse magnetic field method for measuring magnetization curves of silicon steel under highly saturated state

IF 3 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Magnetism and Magnetic Materials Pub Date : 2025-02-20 DOI:10.1016/j.jmmm.2025.172873

Xiang Zhao, Yapeng Jiang, Yu Wang, Junquan Chen

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Abstract

Silicon steel in high power density motors typically operates at high saturation points (above 2 T). However, existing magnetic measurement methods currently struggle to accurately measure the characteristics under highly saturated conditions. Therefore, this paper proposes a Pulse Magnetic Field (PMF) method, which generates a sufficient excitation magnetic field to measure the magnetic properties of silicon steel under highly saturated states. Firstly, the feasibility of the method is proved by principle and simulation. Secondly a signal processing method is proposed to solve the noise, zero drift, and localization. Then the experiments show that the PMF method can generate a magnetic field of over 1,40,000 A/m, causing the silicon steel to reach a high saturation state, over 2 T. Finally, the effect of capacitance value on the measurement of the intrinsic magnetization curve is explored. The test results show that the PMF method can quickly and accurately measure the intrinsic magnetization curve of silicon steel materials under high saturation. Compared with the existing method, the error is about 1 %.

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用脉冲磁场法测量硅钢在高饱和状态下的磁化曲线

高功率密度电机中的硅钢通常在高饱和点（高于2t）下运行。然而，现有的磁测量方法目前难以准确测量高饱和条件下的特性。因此，本文提出了一种脉冲磁场（Pulse Magnetic Field， PMF）方法，该方法能产生足够的激励磁场来测量硅钢在高饱和状态下的磁性能。首先，通过原理和仿真验证了该方法的可行性。其次，提出了一种信号处理方法来解决噪声、零点漂移和定位问题。实验表明，PMF法可产生超过14000 a /m的磁场，使硅钢达到2 t以上的高饱和状态。最后，探讨了电容值对本构磁化曲线测量的影响。试验结果表明，PMF方法能快速准确地测量出高饱和条件下硅钢材料的本征磁化曲线。与现有方法相比，误差约为1%。

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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.