Finite element modeling of the magnetizing inductance of an induction motor as a function of torque

被引：17
|
作者：
Nerg, J [1 ]
Pyrhönen, J [1 ]
Partanen, J [1 ]
机构：
[1] Lappeenranta Univ Technol, Dept Elect Engn, Lappeenranta 53851, Finland
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2004年 / 40卷 / 04期
关键词：
finite element method (FEM); induction motor; magnetizing inductance;
D O I：
10.1109/TMAG.2004.830232
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 torque dependency of the magnetizing inductance of an induction motor is studied. A calculation procedure based on accurate finite element (FE) modeling solution of the air-gap flux linkage to obtain the magnetizing inductance of an induction motor at different load conditions is introduced. Two-dimensional nonlinear time stepping FE analysis is used to calculate the instantaneous rotor and stator currents as well as the flux density distribution in the air-gap. The amplitude of the magnetizing current vector is calculated using the sum magnetomotive forces of the rotor and the stator. The magnetizing inductance is calculated from the air-gap flux linkage and the magnetizing current vector. It is shown that the magnetizing inductance of an induction motor decreases as a function of torque.
引用
收藏
页码：2047 / 2049
页数：3
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