2021 IEEE International Magnetic Conference (INTERMAG)最新文献_第3页

Investigation of Axial-Flux Permanent Magnet Machine with Strap-Wire and Segmented Magnet for Logistics Electric Vehicle 物流电动汽车用带线分段式轴向磁通永磁电机研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579854

Hang Zhang, Huijun Zhou, R. Pei

{"title":"Investigation of Axial-Flux Permanent Magnet Machine with Strap-Wire and Segmented Magnet for Logistics Electric Vehicle","authors":"Hang Zhang, Huijun Zhou, R. Pei","doi":"10.1109/INTERMAG42984.2021.9579854","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579854","url":null,"abstract":"The axial-flux permanent magnet synchronous machine (AFPM), also known as disc-type machine, was first presented in the last 70s. Since then, numerous investigations have been conducted on the AFPM due to the inherently compact structure, effective thermal management and high torque density compared with conventional radial-flux permanent magnet synchronous machine (RFPM). As a result, the AFPM possesses a more compact volume to transmit the similar energy, and is promising for the emerging automobile application. In this paper, an AFPM is designed and optimized for substituting the conventional RFPM in logistic electric vehicle (EV) in order to minimize the traction system volume. It is revealed that the AFPM exhibits significantly smaller volume and weight to obtain the same output capability. This paper mainly introduces three aspects of the AFPM: topology selection and parametric design, manufacturing techniques, and final optimization results analysis. With strap-wire design and stamping techniques to obtain a higher slot filling factor, the AFPM prototype is fabricated and tested for validation. It is demonstrated that the copper wire filling ratio increased from 78% to 88%, and the length of iron core has decreased from 180mm to 99mm compared with conventional RFPM. The analysis, simulation, and experiment validate the feasibility of AFPM for substituting conventional RFPM in logistics EV.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122364312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Low-frequency induction heating of a ferromagnetic catheter for the varicose veins treatment: a study of feasibility 低频感应加热铁磁导管用于静脉曲张治疗的可行性研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579639

Y. Liu, Z. Xiang, J. Garcia, B. Newell, M. Le, B. Ducharne

引用次数: 2

Quickly and High-Precision Digital Twin Device-Level Simulation Modeling of Permanent Magnet Synchronous Generator and Voltage Stabilizing System 永磁同步发电机及稳压系统的快速高精度双器件级数字仿真建模

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580087

Ruolan Sun, Du Yang, Daolong Shi, Liang Zhuo, Huideng Peng

引用次数: 1

Spin-Torque Oscillation Modes of a Composite Synthetic Antiferromagnetic Free Layer in Dual Magnetic Tunnel Junctions 双磁隧道结中复合合成反铁磁自由层的自旋-转矩振荡模式

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579760

X. Chao, Yisong Zhang, Jianping Wang

引用次数: 0

Study of Loss and Temperature Considering Different Shielding Structure in Power Transformer 考虑不同屏蔽结构的电力变压器损耗和温度研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579810

Cui Xiao, C. Dezhi, Bai Baodong

引用次数: 1

Additive manufacturing for soft magnetic materials 软磁材料的增材制造

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579804

Martin Vincent, Gillon Frédéric, Najjar Denis, Benabou Abdelkader, Witz Jean-François, Hecquet Michel, Quaegebeur Philippe

{"title":"Additive manufacturing for soft magnetic materials","authors":"Martin Vincent, Gillon Frédéric, Najjar Denis, Benabou Abdelkader, Witz Jean-François, Hecquet Michel, Quaegebeur Philippe","doi":"10.1109/INTERMAG42984.2021.9579804","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579804","url":null,"abstract":"Additive manufacturing technologies are known for fast prototyping and enabling a wide variety of shapes beneficial to the design of components. If materials used for 3D printers were first mainly polymers, nowadays they are beginning to become more complex in order to allow metal and ceramic 3D printing using composite feedstock. In this work, we aim at additively manufacturing magnetic component. The building process is presented by using filament feedstock for Fused Deposition Modeling process and part of the produced cores have been magnetically characterized. A second innovative printing process using a pellet-based material is investigated for the printing part. In order to consider soft magnetic ferrite, the modeling of the printed object has been carried out. First to calculate the losses in a toroidal inductor and take into account the strong impact of the temperature on the magnetic permeability. Second, to investigate the evolution of magnetic permeability in link with the material density. Thereafter an undulated geometry of a toroidal inductor that is enabled by 3d printing is presented as an illustration. Experimental characterization of the magnetic properties has been carried out to verify the modeling results concerning the impact of the density over permeability.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122709920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of Static Magnetic Fields and Temperature Increase on 3D Magnetic Storage in Heated-Dot Magnetic Recording (Revised May 2021) 静磁场和温度升高对热点磁记录中三维磁存储的影响(2021年5月修订)

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580007

F. Akagi, Yoshito Sakamoto, Naofumi Matsushima

引用次数: 1

Directional field-dependence of tunable magnetic domains in noncentrosymmetric ferromagnetic Weyl semimetal CeAlSi 非中心对称铁磁Weyl半金属CeAlSi中可调谐磁畴的方向场依赖性

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579642

Bochao Xu, Jacob Franklin, H. Yang, F. Tafti, I. Sochnikov

{"title":"Directional field-dependence of tunable magnetic domains in noncentrosymmetric ferromagnetic Weyl semimetal CeAlSi","authors":"Bochao Xu, Jacob Franklin, H. Yang, F. Tafti, I. Sochnikov","doi":"10.1109/INTERMAG42984.2021.9579642","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579642","url":null,"abstract":"Dynamics and textures of magnetic domain walls (DWs) may largely alter the electronic behaviors in a Weyl semimetal system via emergent gauge fields. However, very little is known about even the basic properties of these domain walls in Weyl materials. In this work, we imaged the spontaneous magnetization and magnetic susceptibility of a ferromagnetic (FM) Weyl semimetal CeAlSi using scanning SQUID microscopy. We observed the ferromagnetic DWs lined-up with the [100] direction (or other degenerate directions). We also discovered the coexistence of stable and metastable domain phases, which arise likely due to magnetoelastic and magnetostriction effects and are expected to be highly tunable with small strains. We applied an in-plane external field as the CeAlSi sample was cooled down to below the magnetic phase transition of 8.3K, showing that the pattern of FM domains is strongly correlated with both the amplitude and the orientation of the external field even for weak fields of a few Gausses. The area of stable domains increases with field and reaches maximum when the field is parallel to the main crystallographic axes of the CeAlSi crystal. Our results suggest that the manipulation of these heterogeneous phases can provide a practical way to study the interplay between magnetism and electronic properties in Weyl systems, and that these systems can even serve as a new platform for magnetic sensors.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126999941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Research on Optimal Design of Commutation Performance of Starter-Generator Used in Aero-Engine 航空发动机起动发电机换相性能优化设计研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580096

Ruolan Sun, Huideng Peng, Daolong Shi, Guisong Huang, Liang Zhuo

引用次数: 1

Experimental impact of pulsed laser irradiation, scribing and ablation on 2-D scalar and vector magnetic losses and general properties of Grain-Oriented Electrical Steels 脉冲激光辐照、刻划和烧蚀对晶粒取向电工钢二维标量和矢量磁损耗及一般性能的实验影响

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579742

Préscillia Dupont, M. Nesser, O. Maloberti, J. Dupuy, M. Lamblin, M. Ployard, D. Laloy, J. Fortin

{"title":"Experimental impact of pulsed laser irradiation, scribing and ablation on 2-D scalar and vector magnetic losses and general properties of Grain-Oriented Electrical Steels","authors":"Préscillia Dupont, M. Nesser, O. Maloberti, J. Dupuy, M. Lamblin, M. Ployard, D. Laloy, J. Fortin","doi":"10.1109/INTERMAG42984.2021.9579742","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579742","url":null,"abstract":"Increasing the efficiency of electrical equipment and machines (transformers, large alternators) is a global aim and a way to contribute to its fulfilment is to reduce iron losses of soft magnetic materials within their magnetic cores. Improvement of soft magnetic material properties, especially Grain-Oriented Electrical Steels (GOES), is possible using surface laser treatments and is classically obtained for alternating fields parallel to the Rolling Direction (RD). However, flux lines are not always parallel to this preferred direction and can also rotate. The behavior of laser treated GOES under rotational and alternating fields parallel to the Transverse Direction (TD) remains slightly explored and can be investigated further. In this paper, the magnetic behavior of GOES samples is measured with both unidirectional (with Single Sheet Tester (SST)) and rotational (with Rotational power loss Single Sheet Tester (RSST)) fields. Then, the experimental impacts of different laser treatments (irradiation, scribing and new laser process called ablation with Ultra-Short laser Pulses) on 1-D, 2-D and rotational magnetic losses are compared and discussed. The goal is to optimize the vector behavior of GOES. Power loss reductions are reported for several laser sets of parameters and for several polarization/frequency conditions under both unidirectional and rotational fields. Finally, a short analysis on the difference between rotational and average alternating losses leads to use 2-D vector magnetic properties involving a RD-TD coupled loss contribution while characterizing soft magnetic materials.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115619222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1