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

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 properti...

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Autores principales: Nora Leuning, Markus Jaeger, Benedikt Schauerte, Anett Stöcker, Rudolf Kawalla, Xuefei Wei, Gerhard Hirt, Martin Heller, Sandra Korte-Kerzel, Lucas Böhm, Wolfram Volk, Kay Hameyer
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:6109de4d16d64c5ebfd987bf563d43092021-11-11T18:07:52ZMaterial Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives10.3390/ma142165881996-1944https://doaj.org/article/6109de4d16d64c5ebfd987bf563d43092021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6588https://doaj.org/toc/1996-1944Due 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.Nora LeuningMarkus JaegerBenedikt SchauerteAnett StöckerRudolf KawallaXuefei WeiGerhard HirtMartin HellerSandra Korte-KerzelLucas BöhmWolfram VolkKay HameyerMDPI AGarticleelectrical steelloss modelingtailor-made material designelectrical machinesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6588, p 6588 (2021)
institution DOAJ
collection DOAJ
language EN
topic electrical steel
loss modeling
tailor-made material design
electrical machines
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
spellingShingle electrical steel
loss modeling
tailor-made material design
electrical machines
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
Nora Leuning
Markus Jaeger
Benedikt Schauerte
Anett Stöcker
Rudolf Kawalla
Xuefei Wei
Gerhard Hirt
Martin Heller
Sandra Korte-Kerzel
Lucas Böhm
Wolfram Volk
Kay Hameyer
Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
description 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.
format article
author Nora Leuning
Markus Jaeger
Benedikt Schauerte
Anett Stöcker
Rudolf Kawalla
Xuefei Wei
Gerhard Hirt
Martin Heller
Sandra Korte-Kerzel
Lucas Böhm
Wolfram Volk
Kay Hameyer
author_facet Nora Leuning
Markus Jaeger
Benedikt Schauerte
Anett Stöcker
Rudolf Kawalla
Xuefei Wei
Gerhard Hirt
Martin Heller
Sandra Korte-Kerzel
Lucas Böhm
Wolfram Volk
Kay Hameyer
author_sort Nora Leuning
title Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
title_short Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
title_full Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
title_fullStr Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
title_full_unstemmed Material Design for Low-Loss Non-Oriented Electrical Steel for Energy Efficient Drives
title_sort material design for low-loss non-oriented electrical steel for energy efficient drives
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/6109de4d16d64c5ebfd987bf563d4309
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