3-D Eddy Current Analysis in Steel Laminations of Electrical Machines as a Contribution for Improved Iron Loss Modeling

被引：0

作者：

Handgruber, Paul ^{[1
]}

Stermecki, Andrej ^{[1
]}

Biro, Oszkar ^{[1
]}

Belahcen, Anouar ^{[2
]}

Dlala, Emad ^{[3
]}

机构：

[1] Graz Univ Technol, Christian Doppler Lab Multiphys Simulat Anal & De, A-8010 Graz, Austria

[2] Aalto Univ, Dept Elect Engn, Aalto, Finland

[3] ANSYS Inc, Ann Arbor, MI 48106 USA

来源：

2012 XXTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM) | 2012年

关键词：

AC machines; eddy currents; electric machines; electromagnetic modeling; finite element methods; magnetic hysteresis; magnetic losses; magnetic materials; CAGE INDUCTION-MOTOR; POWER LOSSES; FREQUENCY; FLUX; CORES;

D O I：

暂无

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：

A finite element method to compute the three-dimensional eddy current distribution in steel laminations of electrical machines is presented and applied to the loss estimation of an induction machine. Two different eddy current formulations, the A-V and A-T formulations, are investigated. The three-dimensional model is excited by boundary conditions derived from a two-dimensional field solution. The obtained eddy current losses serve as a validation basis for those from two simplified iron loss models. The first one is the traditional model based on the statistical loss theory. The second one is referred to as the hybrid model, which is based on the evaluation of magnetization curves. Both models are found to produce reasonable results for low frequency losses. The hybrid model is particularly suitable for the estimation of high-order harmonic losses. The results from the models are compared to measured no-load iron loss data.

引用

页码：16 / 22

页数：7

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