Modelling of nonlinear magnetic material using a complex effective reluctivity

被引：22

作者：

Lederer, D

Kost, A

机构：

[1] TU Berlin, Inst Elekt Energietech, D-10587 Berlin, Germany

[2] BTU Cottbus, Lehrstuhl Allgemeine Elektrotech, D-03013 Cottbus, Germany

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 05期

关键词：

effective reluctivity; hysteresis (magnetics); ferromagnetic materials; finite element methods; power cable shielding;

D O I：

10.1109/20.717716

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：

The modelling of nonlinear hysteretic magnetic material in the computation of shielding problems with sinusoidal excitation at power frequency is investigated. A complex valued effective reluctivity model is chosen which allows a sinusoidal calculation in spite of the material's nonlinearity. The absolute value and the phase of the reluctivity are determined from the hysteresis curves of the material. The complex Newton-Raphson method is adapted to solve the arising equation system. The results obtained are compared with measurements and with calculation results using a real valued effective reluctivity.

引用

页码：3060 / 3063

页数：4