不同剩磁铁基纳米晶磁芯脉冲磁化特性

发布时间：2018-05-12 22:05

  本文选题：铁基纳米晶 + 磁化曲线　； 参考：《中国电机工程学报》2016年02期

【摘要】：铁基纳米晶材料因其优异的软磁性能被广泛应用于脉冲磁元件中。为更好指导脉冲磁元件的设计与性能分析,需要根据应用环境测试铁基纳米晶磁芯的脉冲磁化特性。该文建立了基于LC铁磁谐振放电型测试平台,选择合适的测量电路,获得高、低剩磁铁基纳米晶材料在不同磁化速率、磁感应增量下的初始磁化曲线和磁滞回线,并获得脉冲磁导率、损耗等关键磁参数的变化趋势。通过曲线拟合的方法建立了脉冲磁导率、损耗与磁化速率、磁感应增量之间的数学关系,全面反映了铁基纳米晶磁芯的脉冲磁化特性。基于铁基纳米晶磁芯的脉冲磁化特性基础数据,能够有效、准确分析典型脉冲磁元件的工作特性并优化其设计。
[Abstract]:Iron-based nanocrystalline materials are widely used in pulsed magnetic elements because of their excellent soft magnetic properties. In order to better guide the design and performance analysis of pulsed magnetic elements, it is necessary to test the pulse magnetization characteristics of Fe-based nanocrystalline cores according to the applied environment. In this paper, based on the LC ferroresonance discharge test platform, the initial magnetization curve and hysteresis loop of Fe-based nanocrystalline materials with high and low remanence magnetization rates and magnetic induction increments are obtained by selecting appropriate measuring circuits. The change trend of key magnetic parameters such as pulse permeability and loss is obtained. The mathematical relations among impulse permeability, loss, magnetization rate and magnetic induction increment are established by curve fitting method, which fully reflect the pulse magnetization characteristics of Fe-based nanocrystalline cores. Based on the basic data of pulse magnetization characteristics of Fe-based nanocrystalline cores, it is possible to accurately analyze the working characteristics of typical pulsed magnetic elements and optimize their design.
【作者单位】： 强电磁工程与新技术国家重点实验室(华中科技大学);
【基金】：国家自然科学基金项目(51507070)~~
【分类号】：TB383.1
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本文编号：1880313