IEEE Transactions on Magnetics最新文献_第7页

Electromagnetic Field Analysis and Diagnosis of Rotor Demagnetization and Eccentricity Faults in SPMSM 永磁同步电动机转子退磁和偏心故障的电磁场分析与诊断

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-31 DOI: 10.1109/TMAG.2024.3524638

Xian Li;Xiuhe Wang;Wenliang Zhao

{"title":"Electromagnetic Field Analysis and Diagnosis of Rotor Demagnetization and Eccentricity Faults in SPMSM","authors":"Xian Li;Xiuhe Wang;Wenliang Zhao","doi":"10.1109/TMAG.2024.3524638","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3524638","url":null,"abstract":"Aiming at the common faults of demagnetization and rotor eccentricity (RE) in permanent magnet (PM) synchronous motor, the electromagnetic field analysis under the faults and a nonintrusive fault diagnosis and localization technique are investigated in this article. Initially, a PM segmentation model is developed, and a general solution is derived for surface-mounted PM motor with local irreversible demagnetization fault (LIDF) accounting for core saturation, which can precisely simulate LIDF in arbitrary regions. Additionally, an equivalent transformation method is introduced to emulate the nonuniform magnetic field arising from RE. The validity and correctness of the proposed models are confirmed by finite element analysis and experiments. Furthermore, the effects caused by the faults on the no-load electromagnetic performance are analyzed, based on which a diagnosis technique for rotor faults using coil BEMF (CBEMF) is proposed. The localization of the LIDF is achieved by integration with the least square method, and the eccentric angle and ratio are determined by combining with a deep neural network (DNN). Overall, the proposed model can provide an important reference for rotor failure risk assessment, fault-tolerant optimization, and maintenance strategy.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 3","pages":"1-13"},"PeriodicalIF":2.1,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Honeycomb Halbach Flexible Permanent Magnet Array for Magnetically Levitated Planar Motor 用于磁悬浮平面电机的蜂窝状Halbach柔性永磁阵列

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-31 DOI: 10.1109/TMAG.2024.3524600

Xuyang Yu;Enshuo Liu;Chunguang Fan;Bo Zhao;Jiubin Tan

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IEEE Transactions on Magnetics Institutional Listings 《IEEE磁学汇刊》

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3520459

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TechRxiv: Share Your Preprint Research with the World! techxiv：与世界分享你的预印本研究！

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3523753

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Member Get-A-Member (MGM) Program 米高梅会员入会计划

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3523768

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Ferromagnetic Hysteresis Behavior of Ferroic and Multiferroic Ceramics From 100 to 400 K for Nonlinear Pulse Forming Line Applications 非线性脉冲成形线应用中100 ~ 400k铁磁和多铁磁陶瓷的磁滞特性

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3524335

Travis D. Crawford;Andrew J. Romes;Somnath Sengupta;Allen L. Garner

{"title":"Ferromagnetic Hysteresis Behavior of Ferroic and Multiferroic Ceramics From 100 to 400 K for Nonlinear Pulse Forming Line Applications","authors":"Travis D. Crawford;Andrew J. Romes;Somnath Sengupta;Allen L. Garner","doi":"10.1109/TMAG.2024.3524335","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3524335","url":null,"abstract":"Microwave generation in ferromagnetic nonlinear pulse forming lines (NPFLs) depends strongly on material properties, particularly the damped gyromagnetic precession of a ferrite’s magnetic moments. Additionally, temperature-dependent material properties, such as saturation magnetization and coercivity, are critical for assuring stable operation due to their influence on the output center frequency. In this study, we measured the temperature-dependent hysteresis behavior of both ferrous and multiferroic composites for NPFL applications. We manufactured ferrous materials [nickel zinc ferrite (NZF), yttrium iron garnet (YIG), and cobalt ferrite (CoFe)] using the standard ceramic processing methods and characterized them from 100 to 400 K using vibrating sample magnetometry. Additionally, multiferroic materials were manufactured by adding barium strontium titanate (BST) and were characterized using the same methods. Most ferroic and multiferroic samples agree with Kneller’s and Bloch’s laws, which state that the temperature-dependent coercivity and saturation magnetization vary as <inline-formula> <tex-math>$T^{1/2}$ </tex-math></inline-formula> and <inline-formula> <tex-math>${T}^{3/2}$ </tex-math></inline-formula>, respectively. Cobalt samples deviated slightly from Kneller’s law, while NZF deviated from Bloch’s law at temperatures below 200 K. For all samples, saturation magnetization decreased with increasing temperature and coercivity increased with decreasing temperature. These results provide a baseline analysis into temperature-dependent material properties for NPFL applications.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 2","pages":"1-6"},"PeriodicalIF":2.1,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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IEEE Transactions on Magnetics Publication Information IEEE电磁学学报出版信息

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3520458

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IEEE Magnetics Society Distinguished Lecturers for 2025 2025年IEEE磁学学会杰出讲师

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3514012

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IEEE Magnetics Society Information IEEE磁学学会信息

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-30 DOI: 10.1109/TMAG.2024.3520456

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Effects of Nb Content on the Microstructure and Magnetic Properties of the Sm₁.₂Zr₀.₂(Fe₀.₈Co₀.₂)₁₁.₅-ₓ Ti₀.₅Nbₓ (x=0 –0.4, at.%) Alloys Nb含量对Sm₁. 2 Zr₀. 2 （Fe₀.₈Co₀. 2）₁. 1的微观结构和磁性能的影响₅——ₓTi₀。₅Nbₓ（x=0 -0.4, at.%）合金

IF 2.1 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2024-12-20 DOI: 10.1109/TMAG.2024.3520698

Shuainan Xu;Jinbo Wei;Chengli Li;Yan Wang;Zhen Shi;Xiaolian Liu;Yuan Hong;Anjian Pan;Yancheng Kong;Lizhong Zhao;Xuefeng Zhang

{"title":"Effects of Nb Content on the Microstructure and Magnetic Properties of the Sm₁.₂Zr₀.₂(Fe₀.₈Co₀.₂)₁₁.₅-ₓ Ti₀.₅Nbₓ (x=0 –0.4, at.%) Alloys","authors":"Shuainan Xu;Jinbo Wei;Chengli Li;Yan Wang;Zhen Shi;Xiaolian Liu;Yuan Hong;Anjian Pan;Yancheng Kong;Lizhong Zhao;Xuefeng Zhang","doi":"10.1109/TMAG.2024.3520698","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3520698","url":null,"abstract":"ThMn12-type SmFe12-based magnet is suggested to be a promising permanent magnet because of its intrinsic magnetic properties and thermal stability. However, their potential applications are currently limited, as the existence of a soft magnetic <inline-formula> <tex-math>$alpha $ </tex-math></inline-formula>-Fe phase in the alloy deteriorates the hard magnetic properties. Hence, in this work, Nb element was introduced into the SmFe12 alloy to inhibit the precipitation of <inline-formula> <tex-math>$alpha $ </tex-math></inline-formula>-(Fe, Co) phase, and the effects of Nb addition on the microstructure and magnetic properties of melt-spun, hot-pressed (HP), and hot-deformed (HD) Sm1.2Zr0.2(Fe0.8Co0.2)11.5-x Ti0.5Nbx (<inline-formula> <tex-math>${x} =0$ </tex-math></inline-formula>–0.4, at.%) alloys were systematically investigated. Experimental results indicate that the additional Nb element could increase the glass-forming ability and thus inhibit the formation of the <inline-formula> <tex-math>$alpha $ </tex-math></inline-formula>-(Fe, Co) phase in the melt-spun ribbon. However, a zero-field shoulder appears in the demagnetization curves of the heat-treated ribbons due to the appearance of <inline-formula> <tex-math>$alpha $ </tex-math></inline-formula>-(Fe, Co) phase, which could be suppressed by the HP process. As a result, the coercivity of Nb =0.2 HP magnet reaches 3.8 kOe, and the magnetic energy product (BH)max reaches 58.40 kJ/m3. Furthermore, a weak (001) texture of the 1:12 phase is obtained for the one-step HD magnet from the amorphous ribbons, which results in a remanence <inline-formula> <tex-math>${J} _{text {r}}$ </tex-math></inline-formula> of 0.11 T higher in the direction parallel to the c-axis compared to the direction perpendicular to the c-axis. The present result suggests a route to fabricate high-performance bulk SmFe12-based permanent magnets.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 2","pages":"1-6"},"PeriodicalIF":2.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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