2021 IEEE International Magnetic Conference (INTERMAG)最新文献_第5页

Experimental Study Of Microwave Magnetic Properties Of Composites Under Magnetic Bias 偏磁作用下复合材料微波磁性能的实验研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579504

A. Shiryaev, K. Rozanov, Anastasia V. Artemova, S. Bobrovskii, A. Naboko, A. V. Osipov, D. A. Petrov, P. Zezyulina

{"title":"Experimental Study Of Microwave Magnetic Properties Of Composites Under Magnetic Bias","authors":"A. Shiryaev, K. Rozanov, Anastasia V. Artemova, S. Bobrovskii, A. Naboko, A. V. Osipov, D. A. Petrov, P. Zezyulina","doi":"10.1109/INTERMAG42984.2021.9579504","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579504","url":null,"abstract":"The frequency dependencies of microwave permeability of composites filled with flake-shaped sendust (Fe-Al-Si alloy) powder particles are measured. A technique for determining the physical mechanisms resulting in the appearance of magnetic loss peaks is proposed. The technique consists in analysis of the data on microwave permeability obtained under external magnetic field. It is shown that the mixing rule, which correctly retrieves the intrinsic permeability in the absence of the external field, is not valid under magnetic bias. Based on the measured data, the physical mechanisms leading to the appearance of loss peaks are determined, and the invalidity of mixing rules under magnetic bias is explained. It is shown that the main peak of magnetic loss is attributed to the Polder-Smith modes. An increase in the external field leads to vanishing of the domain structure and to an increase in the interaction between powder particles. The permeability under bias should be described by mixing rules that take into account the interaction between inclusions. The found frequencies of the Polder-Smith modes are in good agreement with the permeability data.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"47 9 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":"132481345","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

Design considerations for biphasic pulsed field generators used in portable magnetic sensor systems 便携式磁传感器系统中双相脉冲场发生器的设计考虑

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579812

Neelam Prabhu-Gaunkar, N. R. Bouda, W. Theh, M. Mina

引用次数: 0

The International Magnetics Conference (INTERMAG) 2021 Program Committee 国际磁学会议(INTERMAG) 2021计划委员会

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/intermag42984.2021.9580014

引用次数: 0

A Novel Hybrid Excited Machine with H-type Modular Stator and Consequent Pole PM Rotor 一种新型的h型模块定子和顺极永磁转子混合励磁电机

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579739

W. Ullah, F. Khan, E. Sulaiman, B. Khan, M. Umair

{"title":"A Novel Hybrid Excited Machine with H-type Modular Stator and Consequent Pole PM Rotor","authors":"W. Ullah, F. Khan, E. Sulaiman, B. Khan, M. Umair","doi":"10.1109/INTERMAG42984.2021.9579739","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579739","url":null,"abstract":"Compact stator structure of conventional hybrid excited flux switching machines (HE-FSMs) suffer from parasitic effects of iron loss and demagnetization due to spatial harmonics in non-overlapped winding that effect electromagnetic performance i.e. average torque ($T_{avg}$), torque density (Tdvg), average power ($P_{avg}$), power density ($P_{den}$), efficiency (n), flux controllability and flux focusing effects. To overcome the aforesaid demerits, in this paper a novel modular H-type stator core is proposed to improve electromagnetic performance, flux controllability and flux focusing effects. Proposed modular HE-FSMs operating principle is analytically discussed whereas electromagnetic performance with varying flux gaps is investigated through finite element method (FEA). Analysis reveals that despite of better flux focusing effects, modular structure ease manufacturing process, transportation, assembly, and on-site maintenance. Finally, comparison of proposed design with existing state of the art exposes that H-type modular structure offers 42.35% higher $T_{avg}$, 42% improved $T_{den}$, better $P_{den}$ by 48.68%, truncate $T_{rip}$ by 13.43% with boost n of 98.6 %.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"145 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":"131580295","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

Analysis of Magnetic Coupling Between Armature and Field Windings of VFRM VFRM电枢与磁场绕组之间的磁耦合分析

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580166

H. Gurleyen

引用次数: 0

Design and Simulation of Electromagnetic Metamaterial Unit for High-frequency Transformer 高频变压器电磁超材料单元的设计与仿真

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579942

Wang Yingying, W. Yuyang, Wu Shuai, Fu Weinong

引用次数: 0

2021 Intermag Virtual Conference Conference Chair's Foreword 2021 Intermag虚拟会议会议主席前言

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/intermag42984.2021.9579567

引用次数: 0

Analysis of Highly Reliable Electric Drive System Based on Dual-Winding Fault-Tolerant Permanent Magnet Motor 基于双绕组容错永磁电机的高可靠电驱动系统分析

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579800

Xuefeng Jiang, Daoyu Wu, Lei Li, Yunzhi Li

{"title":"Analysis of Highly Reliable Electric Drive System Based on Dual-Winding Fault-Tolerant Permanent Magnet Motor","authors":"Xuefeng Jiang, Daoyu Wu, Lei Li, Yunzhi Li","doi":"10.1109/INTERMAG42984.2021.9579800","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579800","url":null,"abstract":"Dual-winding fault-tolerant permanent magnet motor (DFPMM) possesses advantages of high efficiency, high power density, and compact structure, in addition to the features of physical, electrical, magnetic, and thermal isolation. In this paper, a novel highly reliable electric drive system based on DFPMM is designed and proposed, which requires only one power supply, fewer power converters, and a high utilization rate than the existing ones. The novel highly reliable electric drive system is capable of implementing fault-tolerant actions when the multi-phase winding open-circuit or short-circuit faults, bridge arm short-circuits, and multiple power switches faults occur simultaneously, and the torque can be output normally under fault conditions. The one-phase winding open-circuit fault is one of the most common types of fault. When a one-phase open-circuit fault occurs, the performance of the system will become abnormal if no fault-tolerant control strategy is adopted. The fault-tolerant control strategy of the novel highly reliable electric drive system is proposed and researched in this paper. The simulated and experimental results show the reliability and fault-tolerant ability of the proposed DFPMM drive system under the open-circuit fault. By adopting the proposed fault-tolerant control strategy, the DFPMM drive system can realize normal operation after a winding open-circuit occurs.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"25 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":"121947454","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

Design of a High Torque Density Interior Permanent Magnet Synchronous Machine with improved Efficiency using Amorphous Magnetic Material 利用非晶磁性材料设计高转矩密度、提高效率的内部永磁同步电机

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580060

Malik Muhammad Zaid, H. Ahmad, I. Sami, Abdul Waheed, Syed Sabir Hussain Bukhari, J. Ro

{"title":"Design of a High Torque Density Interior Permanent Magnet Synchronous Machine with improved Efficiency using Amorphous Magnetic Material","authors":"Malik Muhammad Zaid, H. Ahmad, I. Sami, Abdul Waheed, Syed Sabir Hussain Bukhari, J. Ro","doi":"10.1109/INTERMAG42984.2021.9580060","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9580060","url":null,"abstract":"Several novel designs and techniques are available in the literature for achieving higher torque density in electrical machines. This higher torque density usually comes at the cost of lowered efficiency or power factor of the machine. In this paper, an interior permanent magnet synchronous machine with an additional inner stator is proposed for achieving higher torque density. There are certain issues that arise with the employment of an additional stator. Firstly, the problem of temperature rise is dealt with by using a cup-shaped rotor for exhausting heat from the inner stator core. The current density of the inner stator is also kept lower, for the same reason. Hence, two separate inverters of different current ratings are used to feed current to the windings of the inner and outer stator. Secondly, the problem of increased iron losses (thereby lowered efficiency) that arises due to an additional stator is resolved by using an amorphous material as a stator core instead of silicon steel sheets. The conventional single stator machine and proposed dual stator machines with silicon steel and amorphous material are analyzed and compared using 2D-FE Analysis. The back emf, output torque, losses, and efficiency of all three machines are compared. It is showed that the proposed dual stator machine with an amorphous material core significantly improves the torque density of the machine without lowering its efficiency.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"1 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":"130304677","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: 0

A Novel Hybrid Axial Magnetic Bearing that Produces a Unidirectional Electromagnetic Force 一种产生单向电磁力的新型混合轴向磁轴承

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579680

Chunmin Yu, Z. Deng, Lei Mei, Cong Peng, Shangsi Chen

引用次数: 1