在磁极化波形(包括高次谐波部分)下的磁损耗测定.测量,建模和计算方法

[中文适用范围]： 如今，通过计算机辅助测试（CAT），可以在各种测量条件下自动测量电工钢板的交流磁性能。例如，可以使用任意波形合成器、数字转换器和计算机来测量磁极化的高次谐波频率分量存在下的磁损耗。目前确定特定总损耗的标准方法（IEC 60404-2、IEC 60404-3 和 IEC 60404-10）仅限于磁极化的正弦波形，这些标准对于磁芯材料的表征仍然很重要。然而，电机和变压器中的实际磁极化波形总是包括高次谐波极化，并且现在可以使用包括高次谐波的数值方法来设计电机。但对于这些条件，目前还没有标准的测试方法。本技术报告回顾了在包含高次谐波分量的磁极化条件下软磁材料磁损耗的测量方法。 [外文原描述]： This technical report reviews methods for measurement of the magnetic loss of soft magnetic materials under the condition of magnetic polarization which includes higher harmonic components. Nowadays, by computer aided testing (CAT), a.c. magnetic properties of electrical steel sheets can be measured under various measuring conditions automatically. For example, the magnetic loss in the presence of higher harmonic frequency components of magnetic polarization can be measured using the arbitrary waveform synthesizer, digitiser and computer. The present standard methods (IEC 60404-2, IEC 60404-3 and IEC 60404-10) for the determination of specific total loss are restricted to the sinusoidal waveform of magnetic polarization, and these standards are still important for the characterization of core materials. However, actual waveforms of magnetic polarization in the electrical machines and transformers always include higher harmonic polarizations, and nowadays electrical machines can be designed using numerical methods including higher harmonics. But for these conditions, there is still no standard testing method.