发布求助
文献互助 智能选刊 最新文献

2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)最新文献

筛选
英文 中文
An Analytical Approach to Estimate the Cogging Torque in Segmented stator Synchronous Permanent Magnet Machines with large angular gaps 大角隙分段定子同步永磁电机齿槽转矩的解析估算方法
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032823
E. Fleurot, F. Scuiller, J. Charpentier
{"title":"An Analytical Approach to Estimate the Cogging Torque in Segmented stator Synchronous Permanent Magnet Machines with large angular gaps","authors":"E. Fleurot, F. Scuiller, J. Charpentier","doi":"10.1109/COMPUMAG45669.2019.9032823","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032823","url":null,"abstract":"This paper presents a new analytical model to determine the cogging torque of stator-segmented permanent magnet machines (with angular air gaps, i.e. flux barriers, located in the stator). Basically, if the saturation is not considered, the cogging torque can be seen as the sum of two independent contributions: the first contribution results from the cogging torque related to an equivalent slotless machine with a single gap, the second resulting from an equivalent non-segmented slotted machine. For the specifications of a marine current turbine generator, this analytical approach is evaluated and compared with a numerical 2D Finite Element Analysis (Flux™ 2D by Altair).","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"309 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124287020","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
Equivalent-Circuit Model for Axisymmetric High-Temperature Superconducting Film: Application to Contactless jC Measurement System and Pellet Injection System 轴对称高温超导膜的等效电路模型:在非接触式jC测量系统和球团注入系统中的应用
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032731
T. Yamaguchi, T. Takayama, A. Kamitani, H. Ohtani
{"title":"Equivalent-Circuit Model for Axisymmetric High-Temperature Superconducting Film: Application to Contactless jC Measurement System and Pellet Injection System","authors":"T. Yamaguchi, T. Takayama, A. Kamitani, H. Ohtani","doi":"10.1109/COMPUMAG45669.2019.9032731","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032731","url":null,"abstract":"A high-temperature superconducting (HTS) film is used for numerous engineering devices. The analysis of the shielding current density in the HTS is essential to develop the HTS devices. By using the equivalent-circuit model (ECM) [1] , the analysis of the shielding current density becomes equivalent to solving the initial-value problem of the 1st-order ordinary differential system.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121110333","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 Numerical Approach Including the Winding Impact for Electrical Machine Vibration Analysis 电机振动分析中包含绕组冲击的数值方法
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032830
Limin Huang, N. Galopin, O. Chadebec, G. Meunier, B. Bannwarth
{"title":"A Numerical Approach Including the Winding Impact for Electrical Machine Vibration Analysis","authors":"Limin Huang, N. Galopin, O. Chadebec, G. Meunier, B. Bannwarth","doi":"10.1109/COMPUMAG45669.2019.9032830","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032830","url":null,"abstract":"A numerical approach is presented to study and analyze the winding influence on the vibration problem of electrical machines. A multiscale homogenization method is developed to model the mechanical response of the winding structure, which is hard to be finely modeled. Associated with a magneto-mechanical formulation, this approach allows analyzing the mechanical deformation and vibration problem of electrical devices. The computational method has been applied to the magneto-mechanical analysis of a switched reluctance machine. The results show the importance of considering the windings in the vibration analysis of electrical machines.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127343685","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
A Neural Network based Electromagnetic Simulator 基于神经网络的电磁模拟器
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032832
Antonios Valkanas, D. Giannacopoulos
{"title":"A Neural Network based Electromagnetic Simulator","authors":"Antonios Valkanas, D. Giannacopoulos","doi":"10.1109/COMPUMAG45669.2019.9032832","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032832","url":null,"abstract":"Simulating electromagnetic problems using the finite difference method or the finite element method can lead to large systems of linear equations which need to be solved. Often in the design process, while fine tuning, few system parameters are changed, while the overall system remains largely the same. The system is simulated repeatedly to find the optimal parameters, which can be a time-consuming process. In this paper we propose a new method that uses a neural network trained on a lot of variations of similar problems that can be used to get a quick estimation of the system’s response to small changes in the parameters. Rather than attempting to solve the electromagnetic problem with a neural network, which has been done before, we focus on getting an extremely fast, but also accurate estimation. A concrete example problem is demonstrated through the simulations of a coaxial a cable with varying inner conductor shapes. Details about the design of the neural network regarding the choice of hyperparameters and the network’s architecture are given. Additionally, an evaluation shows the performance of different proposed neural network architectures.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127271967","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
Implementation of Simplified Model Order Reduction Based on POD for Dynamic Simulation of Electric Motors 基于POD的电机动态仿真简化模型降阶实现
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032801
K. Okamoto, Hiroki Sakamoto, H. Igarashi
{"title":"Implementation of Simplified Model Order Reduction Based on POD for Dynamic Simulation of Electric Motors","authors":"K. Okamoto, Hiroki Sakamoto, H. Igarashi","doi":"10.1109/COMPUMAG45669.2019.9032801","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032801","url":null,"abstract":"This paper proposes a fast method for dynamic simulation of electric motors using the simplified model order reduction based on the proper orthogonal decomposition (POD). In the proposed method, the reduced variables multiplied to the basis vectors of magnetic field are directly interpolated using finite elements on the space spanned by the input currents. The field quantities such as torque and iron loss are computed at high computational efficiency without solving equations in the dynamic simulation. It is shown that the proposed method works more than fifty times faster than the conventional finite element method at high accuracy.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126123291","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
Thermo-Electro-Magnetic Convection in Electrically Conductive Ferrofluids 导电铁磁流体中的热电磁对流
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032802
I. Marinova, V. Mateev
{"title":"Thermo-Electro-Magnetic Convection in Electrically Conductive Ferrofluids","authors":"I. Marinova, V. Mateev","doi":"10.1109/COMPUMAG45669.2019.9032802","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032802","url":null,"abstract":"This work examines the thermo-electro-magnetic convection effect in ferrofluid cooling in presence of alternating electric and magnetic fields. We develop a multiphysics field model for electrically conductive ferrofluid transport and heating calculations under outer electromagnetic and thermal field sources. The finite element method is used for 3D electromagnetic-fluid dynamics-thermal model of high reluctance circular coil. Modeled ferrofluid convection is influenced by magnetic, electric, thermal and gravity gradients.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129162496","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: 8
Modeling of SiC MOSFET Behavior in Short-circuit Transient Considering Gate Leakage Current 考虑栅极泄漏电流的SiC MOSFET短路瞬态行为建模
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032761
Jingcun Liu, Guogang Zhang, Bixuan Wang, Wanping Li, Jianhua Wang
{"title":"Modeling of SiC MOSFET Behavior in Short-circuit Transient Considering Gate Leakage Current","authors":"Jingcun Liu, Guogang Zhang, Bixuan Wang, Wanping Li, Jianhua Wang","doi":"10.1109/COMPUMAG45669.2019.9032761","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032761","url":null,"abstract":"In the reproduction of SiC MOSFET short-circuit behavior, one major issue that remains is the absence of a proper gate current model, which in tests strongly depends on device temperature. This paper discusses potential mechanisms and determines its origin as thermionic emission effect. By introducing the thermionic current to the classic semiconductor drift-diffusion framework that is coupled with lattice self-heating effect, dynamic gate leakage current development can be mirrored in simulation. Results also shed light on the possible failure physics by revealing the hotspot location, and practical concerns between two unmatched cells. In essence, this modeling method can also be applied to other similar high-temperature operations of SiC MOSFETs.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130461014","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
COMPUMAG 2019 Board Members COMPUMAG 2019董事会成员
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/compumag45669.2019.9032755
{"title":"COMPUMAG 2019 Board Members","authors":"","doi":"10.1109/compumag45669.2019.9032755","DOIUrl":"https://doi.org/10.1109/compumag45669.2019.9032755","url":null,"abstract":"","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133974037","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
Dispersive Quasi-Normal Mode (DQNM) Expansion in Open and Periodic Nanophotonic Structures 开放和周期纳米光子结构中的色散准正模(DQNM)展开
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/COMPUMAG45669.2019.9032834
M. D. Truong, G. Demésy, F. Zolla, A. Nicolet
{"title":"Dispersive Quasi-Normal Mode (DQNM) Expansion in Open and Periodic Nanophotonic Structures","authors":"M. D. Truong, G. Demésy, F. Zolla, A. Nicolet","doi":"10.1109/COMPUMAG45669.2019.9032834","DOIUrl":"https://doi.org/10.1109/COMPUMAG45669.2019.9032834","url":null,"abstract":"This paper reviews recent developments in our modal expansion technique for the scattering problem of unbounded electromagnetic structures with highly dispersive media. The technique makes use of Dispersive Quasi-Normal Modes (DQNMs), also known as natural modes of photonic structures, obtained by solving spectral problems associated to Maxwell’s equations. The final expansion formula, based on a simple version of Keldysh’s theorem, reveals the contributions of eigenmodes onto the scattered field, allowing us to understand the scattering properties of arbitrary shaped nanophotonic structures (bounded or unbounded), where permeability and permittivity can be dispersive, anisotropic, and even possibly nonreciprocal. This provides complete physical insights to the spectral characteristics of given structures as well as a transparent interpretation of numerical results. We demonstrate this modal analysis on a 2-D model of diffraction grating, made of a periodic slit array etched in a free-standing silver membrane.","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130012519","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
COMPUMAG 2019 Organizing Committee COMPUMAG 2019组委会
2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG) Pub Date : 2019-07-01 DOI: 10.1109/compumag45669.2019.9032735
{"title":"COMPUMAG 2019 Organizing Committee","authors":"","doi":"10.1109/compumag45669.2019.9032735","DOIUrl":"https://doi.org/10.1109/compumag45669.2019.9032735","url":null,"abstract":"","PeriodicalId":317315,"journal":{"name":"2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132191882","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信