Rotational Power Losses and Vector Loci Under Controlled High Flux Density and Magnetic Field in Electrical Steel Sheets
Rotational Power Losses and Vector Loci Under Controlled High Flux Density and Magnetic Field in Electrical Steel Sheets
复制标题
电工钢板受控高磁通密度和磁场下的旋转功率损耗和矢量轨迹
DOI：
10.1109/tmag.2006.879907
复制
发表时间：
2006
影响因子：
2.1
通讯作者：
T. Meydan
中科院分区：
文献类型：
--
作者：
Stan Zurek;T. Meydan
本文给出了在磁通密度B或磁场H的控制轨迹下，无取向、常规取向和高磁导率取向电工钢的旋转功率损耗P_i曲线。在10、50和250 Hz下测量P，其中B的圆形轨迹的半径被控制在0.5至2.0 T，并且H的圆形轨迹的半径被控制在50至20 kA/m。结果证实了在较高磁化强度下P降低的众所周知的现象。对于各向异性电工钢，在受控圆形H下的最大P可以比在受控圆形B下高2.5倍，并且比交流损耗值高6倍。在较高频率下，在较厚的叠层中，由于涡流的贡献增加，P曲线中的峰值消失
This paper presents the rotational power loss P, curves measured for nonoriented, conventional grain-oriented and high-permeability grain-oriented electrical steel under controlled loci of flux density B, or magnetic field H. The P is measured at 10, 50, and 250 Hz with the radius of circular loci of B being controlled from 0.5 to 2.0 T and the radius of circular loci of H from 50 to 20 kA/m. The well-known phenomenon of decreasing P at higher magnetization is confirmed in the results. The maximum P under controlled circular H can be up to 2.5 times higher than under controlled circular B and up to six times higher than the value of alternating loss for anisotropic electrical steels. In thicker laminations at higher frequencies, the peaks in P curves vanish due to increased contribution of eddy currents