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

Assessing the Effect of Geometric Error on the Performance of Magnetic Gears 几何误差对磁齿轮性能影响的评估

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-08-05 DOI: 10.1109/IEMDC.2019.8785384

A. Leontaritis, Aydin Nassehi, J. Yon

{"title":"Assessing the Effect of Geometric Error on the Performance of Magnetic Gears","authors":"A. Leontaritis, Aydin Nassehi, J. Yon","doi":"10.1109/IEMDC.2019.8785384","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785384","url":null,"abstract":"This paper presents and compares different methods for assessing the effect of planar geometric errors on the performance of magnetic gears using both Finite Element Analysis (FEA)and analytical techniques. In FEA, small geometrical deviations lead to the generation of different forms of the mesh, even when mesh size and type are constant. However, to accurately assess the effect of small deviations on performance, the influence of the specific mesh form must be negligible. Different torque calculation methods, along with different mesh parameters, have been used to obtain specific mesh form independence and hence accuracy in results. It is observed that both Maxwell's stress tensor and virtual work methods are computationally inefficient and, if many studies are to be conducted, FEA becomes impractical. Analytical solutions of magnetic potential offer a computationally efficient and accurate alternative for assessing magnetic gears under certain assumptions. This could allow the sensitivity of a magnetic gear's performance to be assessed with respect to manufacturing error, enabling the designer to appropriately specify tolerances and manufacturing processes.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878360","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

Analytical Evaluation of High-Efficiency Induction Motor Losses 高效感应电动机损耗的分析评价

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-08-05 DOI: 10.1109/IEMDC.2019.8785380

L. Aarniovuori, P. Lindh, H. Kärkkäinen, M. Niemelä, J. Pyrhönen, W. Cao

引用次数: 5

In-Situ Thermal and Mechanical Fibre Optic Sensing for In-Service Electric Machinery Bearing Condition Monitoring 用于在役电机轴承状态监测的原位热与机械光纤传感

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-08-05 DOI: 10.1109/IEMDC.2019.8785203

A. Mohammed, S. Djurović

引用次数: 10

Saturation interaction in a fault-tolerant induction machine drive due to a zero-sequence stator current 由零序定子电流引起的容错感应电机驱动中的饱和相互作用

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-08-05 DOI: 10.1109/IEMDC.2019.8785404

Heinrich T. Eickhoff, R. Seebacher, A. Muetze

引用次数: 1

Advanced Uncertainty Calculation Method for Converter-Fed Motor Loss Determining 变频电机损耗确定的高级不确定性计算方法

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-08-05 DOI: 10.1109/IEMDC.2019.8785093

H. Kärkkäinen, L. Aarniovuori, M. Niemelä, J. Pyrhönen

引用次数: 6

Optimisation of Additively Manufactured Permanent Magnets for Wind Turbine Generators 风力发电机组用增材制造永磁体的优化设计

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-14 DOI: 10.1109/IEMDC.2019.8785119

Connor McGarry, A. McDonald, N. Alotaibi

{"title":"Optimisation of Additively Manufactured Permanent Magnets for Wind Turbine Generators","authors":"Connor McGarry, A. McDonald, N. Alotaibi","doi":"10.1109/IEMDC.2019.8785119","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785119","url":null,"abstract":"With the increased demand for higher efficiency electrical machines, renewable energy and in all-electric transport systems, there is a growing market for permanent magnet machines and hence usage of rare earth magnet materials. One application - direct drive wind turbines - has a particularly large requirement in terms of magnet kg/MW and an aspiration to reduce this usage. That in turn motivates the authors of this paper to examine the optimal shape, distribution and mixture of permanent magnet poles by that could be produced through an additive manufacturing (AM) route. AM is a relatively new technique of magnet manufacture which has the potential to replace conventional forming techniques that are wasteful and often struggle with complex geometries. A genetic algorithm coupled to a finite element code is used to optimise magnet size and material configuration, and compares the results with conventional manufacturing/shaping techniques. This proposal investigates if additive manufacturing can meet the same level of performance whilst reducing permanent magnet material cost. Results which use additive manufacturing show that a reduction in the total magnet cost can be achieved with virtually no penalties in overall machine performance. Although the evaluation focuses on the cost of the rare earth magnet material in use - and excludes manufacturing cost and time - the results highlight that by using additive manufacturing a cost reduction of up to 3 % can be achieved highlighting that AM has significant potential to compete with, if not succeed, existing magnet forming techniques.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128340147","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

Effects of Manufacturing Imperfections and Design Parameters on Radial Magnetic Forces in the BLDC Claw-Pole Motor 制造缺陷和设计参数对无刷直流爪极电机径向磁力的影响

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-13 DOI: 10.1109/IEMDC.2019.8785282

Stefan Leitner, Hannes Gruebler, A. Muetze

引用次数: 3

Simulation and Experimental Validation of Equivalent Circuit Parameters and Core Loss in a Tubular Permanent Magnet Linear Generator for Free Piston Engine Applications 自由活塞发动机用管状永磁直线发电机等效电路参数及铁芯损耗的仿真与实验验证

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785345

J. Subramanian, Fereshteh Mahmudzadeh, M. Bade, P. Famouri

{"title":"Simulation and Experimental Validation of Equivalent Circuit Parameters and Core Loss in a Tubular Permanent Magnet Linear Generator for Free Piston Engine Applications","authors":"J. Subramanian, Fereshteh Mahmudzadeh, M. Bade, P. Famouri","doi":"10.1109/IEMDC.2019.8785345","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785345","url":null,"abstract":"Conventional generators in general refer to rotary generators. Linear generators on the other hand uses linear motion to convert it to electricity. This linear motion is available in different processes such as free piston engines, and sea waves. Any electrical machine deals with losses and it's important to study the different losses in the system. Lot of research has gone about in developing an accurate model of core losses in a rotary electrical machine. Linear machine losses haven't been discussed or studied in detail by the researchers. This paper attempts to model and simulate the core losses in a linear generator used in free piston engine systems. Modelling of core loss has been done in FEMM. Furthermore, the equivalent circuit parameters of the linear machine have been determined by FEMM and validated by experiments. Experimental technique to determine core losses in a linear generator has been proposed. The results are analyzed and the method to determine the core losses in a linear generator have been presented.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"11 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":"123100707","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: 7

Comparative Studies of Fractional/Integer-Slot Consequent Pole Permanent Magnet Machines 分数/整槽顺极永磁电机的比较研究

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785218

R. Zhou, G. Li, Z. Zhu, Y. Li, M. Foster, D. Stone

引用次数: 3

Design, Modelling and Control of MIMO AMB System with 3 Radial Bearing Planes for Megawatt-Range High-Speed Rotor 兆瓦级高速转子3径向轴承面MIMO AMB系统的设计、建模与控制

2019 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2019-05-12 DOI: 10.1109/IEMDC.2019.8785378

R. Jastrzebski, E. Kurvinen, O. Pyrhönen

{"title":"Design, Modelling and Control of MIMO AMB System with 3 Radial Bearing Planes for Megawatt-Range High-Speed Rotor","authors":"R. Jastrzebski, E. Kurvinen, O. Pyrhönen","doi":"10.1109/IEMDC.2019.8785378","DOIUrl":"https://doi.org/10.1109/IEMDC.2019.8785378","url":null,"abstract":"High-speed electric machines require dedicated bearings. Active magnetic bearings (AMBs) provide economical solution for high-power rotors where oil-free operation and low operational costs are crucial. In high-power and high-speed applications benefits of contactless rotor suspension, e.g. compared to traditional rolling element bearings, as well as online monitoring and diagnostics are highly valued. AMBs offer low losses and balancing capabilities in integrated package. The design of the high-speed high-power induction machine rotor is very challenging and cost sensitive. Manufacturing limitations, thermal and cooling constraints, stress and rotor dynamic issues and total efficiency are interdependent. The space and power electronics are limited for bearings and control design, which have to provide robust rotor suspension. This work presents electromagnetic design, modelling, and control of fully levitated AMB-rotor for demanding application. The machine design offers very limited space but 3 radial bearing planes and separate axial AMB are used. The control plant is modelled based on flexible rotor dynamics; while bearing inductances and forces are modelled with 2D and 3D FEM electromagnetic simulations. The presented LQG model-based control is scalable from single axis axial suspension to coupled centralized 3 actuator-sensor pairs radial suspension. The control has to deal with considerable plant parameter variations because of saturation and high destabilizing position stiffness because of small airgaps. The control design is verified in simulations using non-linear engineering models.","PeriodicalId":378634,"journal":{"name":"2019 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"108 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":"117276048","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