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2019 IEEE International Electric Machines & Drives Conference (IEMDC)最新文献

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Application of a Hybrid Modeling Approach for Eddy Current Estimation in Hairpin Windings 混合建模方法在发夹绕组涡流估计中的应用
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785084
D. Morisco, Ioan Liviu Iepure, A. Moeckel
{"title":"Application of a Hybrid Modeling Approach for Eddy Current Estimation in Hairpin Windings","authors":"D. Morisco, Ioan Liviu Iepure, A. Moeckel","doi":"10.1109/IEMDC.2019.8785084","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785084","url":null,"abstract":"For traction motor applications, the hairpin winding technology with relatively large conductor cross section area is widely used. Compared to conventional stranded wire windings, increased eddy current losses may occur in the hairpin winding when the conductors are exposed to time varying magnetic fields. Although the additional losses due to the induced eddy currents are a well known phenomenon, classical calculation approaches reach their limits as soon as ferromagnetic material with nonlinear properties and complex shapes need to be considered. An accurate but time-consuming estimation consists of time-transient quasi-stationary finite element analysis (FEA). More efficiently, the induced eddy currents can be calculated by separating the conductors into parallel filaments following the partial equivalent electrical circuit (PEEC)approach. As long as linear material characteristics are prevailing; thus the problem can be solved in the frequency domain. In this paper, we propose the application of an hybrid FEA-PEEC modeling approach to estimate the eddy current losses in the conductors of a hairpin winding traction motor. For the proposed approach, the resulting linear system is solved in the frequency domain by direct solvers. To emphasize the benefit and the strength of the approach, a study case motor model is analysed and the results are assessed regarding the accuracy and the calculation time.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132113375","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
A Novel Hybrid-Pole Interior PM Machine with Magnet-Axis-Shifting Effect 一种具有磁体-轴移效应的新型混合极室内永磁电机
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785182
Hui Yang, Weijia Wang, Heyun Lin, Z. Zhu, S. Lyu, S. Niu
{"title":"A Novel Hybrid-Pole Interior PM Machine with Magnet-Axis-Shifting Effect","authors":"Hui Yang, Weijia Wang, Heyun Lin, Z. Zhu, S. Lyu, S. Niu","doi":"10.1109/IEMDC.2019.8785182","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785182","url":null,"abstract":"This paper proposes a novel hybrid-pole interior permanent magnet (HP-IPM) machine by combining dual-layer reluctance and flat-type PM structures. The design concept of “asymmetrical magnet arrangement” is introduced to achieve a magnet-axis-shifting (MAS) effect, namely, the PM d-axis is shifted to make PM and reluctance torque components maximize at the same current angle. Consequently, the resultant torque is improved without increasing magnet usage. The machine topology and MAS effect are first introduced, respectively. In addition, the design optimization is performed to maximize the total torque capability. The electromagnetic characteristics of the proposed HP-IPM machine are investigated and compared with those of the reference conventional IPM machine with similar sizing and PM usage, which confirms the feasibility of the proposed HP design for the torque performance improvement.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126469487","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: 9
Magnetization Characteristics and Loss Measurements of the Axial Flux Permanent Magnet Motor's Stator 轴向磁通永磁电机定子的磁化特性及损耗测量
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785080
Qurban Ali Shah Syed, V. Solovieva, I. Hahn
{"title":"Magnetization Characteristics and Loss Measurements of the Axial Flux Permanent Magnet Motor's Stator","authors":"Qurban Ali Shah Syed, V. Solovieva, I. Hahn","doi":"10.1109/IEMDC.2019.8785080","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785080","url":null,"abstract":"In this paper, the magnetization characteristics of the stator of the flux focusing type double stator and single rotor (DSSR) axial flux permanent magnet motor (AFPM) are measured and analyzed, using the toroid test setup. The toroid test setup is validated and comparative analysis of the magnetization characteristics of the stacked and tape-wound lamination is carried out. The air-gap flux flows in the axial direction, therefore, the stator of the AFPM should be manufactured by using either the soft magnetic composite (SMC), or the tape-wound electrical steel. The milling technique is adopted to make the slots in the ring, and the iron losses are measured in the slotted and non-slotted structures of the SMC and tape-wound electrical steel. The influence of the physical dimensions, heat-treatment, and gluing of the tape-wound lamination is investigated.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131123813","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
High Speed Synchronous Reluctance Motors for Electric Vehicles: a Focus on Rotor Mechanical Design 电动汽车用高速同步磁阻电机:转子机械设计的重点
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785083
A. Credo, G. Fabri, M. Villani, Mircea Popescu
{"title":"High Speed Synchronous Reluctance Motors for Electric Vehicles: a Focus on Rotor Mechanical Design","authors":"A. Credo, G. Fabri, M. Villani, Mircea Popescu","doi":"10.1109/IEMDC.2019.8785083","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785083","url":null,"abstract":"This paper deals with the design of high-speed Synchronous Reluctance motors for electric vehicle applications. The need to enhance power density and lowering costs leads to the design of high speed motors with a reduced amount of rare earth. Pure synchronous reluctance motors potentially operate at high speed and exhibit a low cost rotor compared to PM and induction motors. Nevertheless, they present reduced performances in deep flux weakening operations in particular when the so-called radial ribs are introduced to increase the mechanical robustness of the rotor. In this paper the adoption of the radial ribs in the related design challenges are investigated and discussed. The adoption of a suitable commercial optimization tool able to optimize the placement and the sizing of the radial ribs is presented. The approach leads to an original positioning of the radial ribs able to preserve the performances of the motor at high operating speed enhancing the mechanical integrity of the rotor.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133643888","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: 19
A High Torque Density Halbach Rotor Coaxial Magnetic Gear 高转矩密度哈尔巴赫转子同轴磁齿轮
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785188
H. Wong, J. Bird, David Barnett, W. Williams
{"title":"A High Torque Density Halbach Rotor Coaxial Magnetic Gear","authors":"H. Wong, J. Bird, David Barnett, W. Williams","doi":"10.1109/IEMDC.2019.8785188","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785188","url":null,"abstract":"This paper presents the design, analysis, and experimental testing results for a 5.67:1 Halbach rotor magnetic gearbox with a ferromagnetic back support. Using 3-D finite element analysis software the Halbach magnetic gearbox was calculated to achieve a volumetric torque density of 284N.m/L with only an active region outer diameter of 120mm. The experimental prototype obtained an active region volumetric torque density of 261.4N.m/L","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115404747","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: 20
An Optimization Method for Cooling System Design of Traction Motors 牵引电机冷却系统的优化设计方法
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785185
A. Boglietti, S. Nategh, E. Carpaneto, Luca Boscaglia, Claudio Scema
{"title":"An Optimization Method for Cooling System Design of Traction Motors","authors":"A. Boglietti, S. Nategh, E. Carpaneto, Luca Boscaglia, Claudio Scema","doi":"10.1109/IEMDC.2019.8785185","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785185","url":null,"abstract":"This paper presents an optimization method for traction motor cooling system. The proposed method is generic and can cover a wide range of cooling systems used in e-mobility, railway, marine and aerospace applications. The optimization procedure utilizes both numerical and analytical modeling methods to estimate accurately thermal and cooling parameters in motor critical parts. Analytical approaches, in combination with numerical ones, enable accurate estimation of the motor cooling condition while keeping the computation time within a reasonable range. CFD calculations provide boundary conditions and heat transfer evaluation of the airflow inside the motor for developed finite element and lumped approach models where the most temperature sensitive parts are located. Several thermal and flow measurements are carried out on a 245 kW open self-ventilated induction motor to evaluate accuracy of different components of the optimization procedure. A good agreement between the thermal model, CFD calculation and experimental results is achieved.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121397217","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: 10
Variable-Pole Induction Machine Drive for Electric Vehicles 电动汽车用变极感应电机驱动
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785212
Elie Libbos, Bonhyun Ku, Shivang Agrawal, S. Tungare, A. Banerjee, P. Krein
{"title":"Variable-Pole Induction Machine Drive for Electric Vehicles","authors":"Elie Libbos, Bonhyun Ku, Shivang Agrawal, S. Tungare, A. Banerjee, P. Krein","doi":"10.1109/IEMDC.2019.8785212","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785212","url":null,"abstract":"High power density, high efficiency, and inexpensive drivetrains operating over wide speed and torque ranges are critical for electric vehicles (EVs). The induction machine (IM) offers a cost-effective and reliable alternative to permanent magnet-based solutions. A fixed pole IM's high torque requirement at low speed sacrifices its performance at partial loads and high speeds. A variable-pole IM has an additional degree of freedom which is the pole count. This paper uses a variable pole count to improve IM performance over a wide torque and speed range. An approach to select the best pole configuration for a given operation strategy is presented. For illustration, a maximum torque per ampere (MTPA) strategy is used on a 36-slot toroidally wound IM. Variable-pole operation increases the torque capability of the machine and enlarges its high efficiency region to a wide speed range. The analytical results provide guidelines for designing and operating a variable-pole machine tailored for this application.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131674735","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: 9
Speed Range Extension of a Dual-Stator PM Machine Using Winding Switching Strategy 采用绕组开关策略的双定子永磁电机速度范围扩展
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785127
S. Lyu, Hui Yang, Heyun Lin, Ya Li, Hao Zheng
{"title":"Speed Range Extension of a Dual-Stator PM Machine Using Winding Switching Strategy","authors":"S. Lyu, Hui Yang, Heyun Lin, Ya Li, Hao Zheng","doi":"10.1109/IEMDC.2019.8785127","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785127","url":null,"abstract":"In this paper, a novel winding switching concept is proposed for speed range extension of a dual-stator permanent magnet machine (DS-PMM). A winding switching circuit with two switch groups is designed for the winding reconfiguration to enable the machine to operate in three modes. The objective machine structure and the winding switching principle are introduced first. With the flux linkage method, the torque-speed characteristics of the machine under different operating modes are predicted. The feasibility of the proposed winding switching strategy for further extending the speed range of the DS-PMM is verified by both finite element (FE) analysis and experiments.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"28 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128137244","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
A Novel Drive Train Concept for Personalized Upper Body Exoskeletons with a Multiphase Axial Flux Machine 基于多相轴向磁通机的个性化上半身外骨骼的新型传动系统概念
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785412
Marcel Waldhof, A. Echle, N. Parspour
{"title":"A Novel Drive Train Concept for Personalized Upper Body Exoskeletons with a Multiphase Axial Flux Machine","authors":"Marcel Waldhof, A. Echle, N. Parspour","doi":"10.1109/IEMDC.2019.8785412","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785412","url":null,"abstract":"This paper deals with a novel drive train concept for a personalized exoskeleton power module, which can be used in industrial production or construction applications. To match the personal needs of individual user, a modular and rapidly designable concept is introduced. A topology comparison for different machine concepts has been done and a multiphase double-sided axial flux machine concept with an integrated planetary gear is presented. An analytical model approach for a fast electrical machine design process is presented, to calculate the torque performance of the power module. In the end, a three dimensional FE simulation is presented to verify the analytical models.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128427624","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: 9
Design and Analysis of Interior Permanent Magnet Two Degrees of Freedom Motor Based on Cross-Coupled Structure 基于交叉耦合结构的内置永磁二自由度电机设计与分析
2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785278
Yoshiyuki Hatta, T. Shimono, Y. Fujimoto
{"title":"Design and Analysis of Interior Permanent Magnet Two Degrees of Freedom Motor Based on Cross-Coupled Structure","authors":"Yoshiyuki Hatta, T. Shimono, Y. Fujimoto","doi":"10.1109/IEMDC.2019.8785278","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785278","url":null,"abstract":"This paper proposes an interior permanent magnet two degrees of freedom (IPM 2-DOF) motor based on cross-coupled structure. The proposed motor generates force in z direction and torque in yaw direction. Moreover, the motor generates not only magnetic force but also reluctance force. This paper describes the structure of the proposed motor and the relationship between d-axis inductance, q-axis inductance, reluctance torque and reluctance force. The analysis with Finite Element Analysis (FEA) is conducted to verify effectiveness of the motor.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125268026","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
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