硅钢叠片在宽频三轴正交激磁条件下的磁特性模拟方法研究

发布时间：2018-04-22 00:27

本文选题：磁特性测量 + 电工钢片　；参考：《中国电机工程学报》2017年07期

【摘要】：针对硅钢叠片的工作磁通频率高于工频时磁特性计算不准确的问题,开展了宽频(20Hz~1k Hz)激磁条件下的磁特性测量和建模。建立了硅钢叠片的线性涡流场解析模型,该模型在低磁场激励下有效预测硅钢片宽频磁特性;在高磁场激励下,提出一种考虑多涡流域和非线性的瞬态电磁有限元方法。该方法模拟了二维硅钢片材料,隔离了叠片铁心二维平面内多个涡流区域,计算了硅钢叠片的宽频磁化曲线。最后,利用三轴正交磁特性测量装置对硅钢叠片进行综合磁特实验。比较实验结果与数值模拟结果验证算法的有效性。
[Abstract]:In order to solve the problem of inaccurate calculation of magnetic characteristics when the working flux frequency of silicon steel laminates is higher than that of power frequency, the measurement and modeling of magnetic characteristics are carried out under the excited-magnetic conditions of 20Hz / 1 Hz. An analytical model of linear eddy current field for silicon steel laminated sheet is established, which can effectively predict the wide frequency magnetic properties of silicon steel sheet under low magnetic field excitation, and a transient electromagnetic finite element method considering multi-eddy current domain and nonlinearity is proposed under high magnetic field excitation. This method simulates the two-dimensional silicon steel sheet material, isolates many eddy current regions in the two-dimensional plane of the laminated iron core, and calculates the wide-band magnetization curve of the silicon steel laminate. Finally, a three-axis orthogonal magnetic characteristic measuring device is used to test the magnetic properties of silicon steel laminates. Compared the experimental results with the numerical simulation results to verify the effectiveness of the algorithm.
【作者单位】：河北工业大学电磁场与电器可靠性省部共建重点实验室;天津工业大学天津市电工电能新技术重点实验室;
【基金】：国家自然科学基金项目(51237005,51507110) 河北省自然科学基金项目(E2014202137) 新能源电力系统国家重点实验室开放课题(LAPS16002)~~
【分类号】：TM275

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