Comprehensive study on in-plane eddy-current loss in permanent-magnet synchronous machines

被引：1
作者：
Ohguchi, Hideki [1 ,3 ]
Takigawa, Shion [1 ]
Imamori, Satoshi [2 ]
机构：
[1] Tokai Univ, Sch Engn, Dept Elect & Elect Engn, Hiratsuka, Japan
[2] Fuji Elect Co Ltd, Adv Technol Lab, Hino, Japan
[3] 4-1-1 Kitakaname, Hiratsuka, Kng 2591292, Japan
来源：
IET ELECTRIC POWER APPLICATIONS | 2024年 / 18卷 / 03期
关键词：
eddy current losses; finite element analysis; permanent magnet machines;
D O I：
10.1049/elp2.12386
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In-plane eddy-current loss in permanent-magnet synchronous machines has been comprehensively and analytically studied by using three-dimensional (3D) finite element method. Considering the accuracy and calculation time, the electrical conductivity in the stack direction should be set to zero in 3D analysis. Stacking factor is also an important analytical parameter in this kind of calculation. The influences of slot number and coil-end height have been clarified. Harmonics caused by an inverter in pulse-width-modulation or one-pulse mode result in additional in-plane eddy-current loss, which is independent of the slot number. This behaviour can be explained by a theoretical equation of the eddy-current loss. These results are useful for the analysis and design of highly efficient electrical machines. In this paper, in-plane eddy-current loss in permanent-magnet synchronous machines has been comprehensively and analytically studied by using three-dimensional finite element method. The influences of slot number and coil-end height have been clarified. Harmonics caused by an inverter in pulse-width-modulation or one-pulse mode result in additional in-plane eddy-current loss, which is independent of the slot number.image
引用
收藏
页码：278 / 286
页数：9
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