Power losses in magnetic laminations with hysteresis: Finite element modeling and experimental validation

被引：44

作者：

Basso, V

Bertotti, G

Bottauscio, O

Fiorillo, F

Pasquale, M

Chiampi, M

Repetto, M

机构：

[1] GNSM, I-1025 TURIN, ITALY

[2] POLITECN TORINO, I-1029 TURIN, ITALY

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 81卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.364614

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dynamic hysteresis loop shapes and magnetic power losses are studied in nonoriented Fe-Si laminations exhibiting significant excess losses. Measurements are carried out under controlled sinusoidal induction in the frequency range from 1 Hz to 1.6 kHz, at various peak inductions from 0.25 to 1.5 T. Excess losses are found to obey a integral(3/2) law up to frequencies of 200-400 Hz, depending on peak induction. Beyond this limit, definite deviations are observed, due to eddy current shielding. Detailed information on the flux and field distribution in this high frequency regime is obtained by finite element solutions of Maxwell equations employing the dynamic Preisach model to describe quasi-static hysteresis and dynamic wall processes. The agreement between theoretical predictions and measurements is discussed. (C) 1997 American Institute of Physics.

引用

页码：5606 / 5608

页数：3

共 11 条

[1] Power losses in thick steel laminations with hysteresis [J].