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

被引：37

作者：

Handgruber, Paul ^{[1
,2
]}

Stermecki, Andrej ^{[1
,2
]}

Biro, Oszkar ^{[1
,2
]}

Belahcen, Anouar ^{[3
,4
]}

Dlala, Emad ^{[5
]}

机构：

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

[2] Graz Univ Technol, Inst Fundamentals & Theory Elect Engn IGTE, A-8010 Graz, Austria

[3] Aalto Univ, Dept Elect Engn, Espoo 00076, Finland

[4] Tallinn Univ Technol, EE-19086 Tallinn, Estonia

[5] ANSYS Inc, Ann Arbor, MI 48108 USA

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2013年 / 49卷 / 05期

关键词：

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

D O I：

10.1109/TIA.2013.2260713

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A finite-element method to compute the 3-D 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 3-D model is excited by boundary conditions derived from a 2-D 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 the so-called 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：2044 / 2052

页数：9