Magnetic anisotropy under arbitrary excitation in finite element models
Magnetic anisotropy under arbitrary excitation in finite element models
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DOI：
10.24425/aee.2019.128280
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发表时间：
2019-01-01
影响因子：
1.3
通讯作者：
Hameyer, Kay
中科院分区：
文献类型：
--
作者：
Bavendiek, Gregor;Leuning, Nora;Hameyer, Kay
采用标准化的测量装置和不同的励磁参数，测定了硅铁电工钢的磁性能。磁损耗和磁化强度的特征值用于选择最适合其应用的材料。这种方法是不够的，因为电机内部的复杂材料行为，这可能导致估计和实际机器行为之间的可能差异。材料的各向异性可能是模拟和测量不一致的原因之一。借助旋转式单片测试仪，可以在与应用相关的场分布下对磁性材料进行测试。因此，可以表征滞后和各向异性的附加效应，以进行详细的建模和仿真。
Magnetic properties of silicon iron electrical steel are determined by using standardized measurement setups and distinct excitation parameters. Characteristic values for magnetic loss and magnetization are used to select the most appropriate material for its application. This approach is not sufficient, because of the complex material behavior inside electrical machines, which can result in possible discrepancies between estimated and actual machine behavior. The materials' anisotropy can be one of the problems why simulation and measurement are not in good accordance. With the help of a rotational single sheet tester, the magnetic material can be tested under application relevant field distribution. Thereby, additional effects of hysteresis and anisotropy can be characterized for detailed modelling and simulation.