Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives

被引：29

作者：

Leuning, Nora ^{[1
]}

Jaeger, Markus ^{[1
]}

Schauerte, Benedikt ^{[1
]}

Stoecker, Anett ^{[2
]}

Kawalla, Rudolf ^{[2
]}

Wei, Xuefei ^{[3
]}

Hirt, Gerhard ^{[3
]}

Heller, Martin ^{[4
]}

Korte-Kerzel, Sandra ^{[4
]}

Boehm, Lucas ^{[5
]}

Volk, Wolfram ^{[5
]}

Hameyer, Kay ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Elect Machines, D-52062 Aachen, Germany

[2] TU Bergakad Freiberg, Inst Met Forming, D-09596 Freiberg, Germany

[3] Rhein Westfal TH Aachen, Inst Met Forming, D-52056 Aachen, Germany

[4] Rhein Westfal TH Aachen, Inst Phys Met & Mat Phys, D-52074 Aachen, Germany

[5] Tech Univ Munich, Chair Met Forming & Casting, D-85748 Garching, Germany

来源：

MATERIALS | 2021年 / 14卷 / 21期

关键词：

electrical steel; loss modeling; tailor-made material design; electrical machines; GRAIN-SIZE; MAGNETIC-PROPERTIES; TEXTURE; MICROSTRUCTURE;

D O I：

10.3390/ma14216588

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Due to the nonlinear material behavior and contradicting application requirements, the selection of a specific electrical steel grade for a highly efficient electrical machine during its design stage is challenging. With sufficient knowledge of the correlations between material and magnetic properties and capable material models, a material design for specific requirements can be enabled. In this work, the correlations between magnetization behavior, iron loss and the most relevant material parameters for non-oriented electrical steels, i.e., alloying, sheet thickness and grain size, are studied on laboratory-produced iron-based electrical steels of 2.4 and 3.2 wt % silicon. Different final thicknesses and grain sizes for both alloys are obtained by different production parameters to produce a total of 21 final material states, which are characterized by state-of-the-art material characterization methods. The magnetic properties are measured on a single sheet tester, quantified up to 5 kHz and used to parametrize the semi-physical IEM loss model. From the loss parameters, a tailor-made material, marked by its thickness and grain size is deduced. The influence of different steel grades and the chance of tailor-made material design is discussed in the context of an exemplary e-mobility application by performing finite-element electrical machine simulations and post-processing on four of the twenty-one materials and the tailor-made material. It is shown that thicker materials can lead to fewer iron losses if the alloying and grain size are adapted and that the three studied parameters are in fact levers for material design where resources can be saved by a targeted optimization.

引用

页数：19