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The effect of tooth-width on the distribution of rotational core losses 齿宽对旋转铁芯损耗分布的影响
2013 International Electric Machines & Drives Conference Pub Date : 2013-07-15 DOI: 10.1109/IEMDC.2013.6556155
J. Wanjiku, N. Alatawneh, P. Pillay
{"title":"The effect of tooth-width on the distribution of rotational core losses","authors":"J. Wanjiku, N. Alatawneh, P. Pillay","doi":"10.1109/IEMDC.2013.6556155","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556155","url":null,"abstract":"This paper examines the effect of tooth-width in the mapping of pulsating, elliptical and rotational losses in a tooth body for a given slot-pitch. Core loss distribution in the tooth is done with the use of FEA and 2-D core loss measurement results. The core loss distribution is computed using two methods, i.e., pulsating losses assuming all the flux-density in the stator is pulsating and elliptical losses including rotational losses. The two are compared and discussed in detail. A methodology that reduces the FEA geometrical size for core loss analyses to a slot-pitch is also presented.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125711405","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
An efficient domain decomposition method for 3-D finite element analysis of nonlinear electric machine problems 一种用于非线性电机问题三维有限元分析的有效区域分解方法
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556171
Wa Yao, Jianming Jin, P. Krein
{"title":"An efficient domain decomposition method for 3-D finite element analysis of nonlinear electric machine problems","authors":"Wa Yao, Jianming Jin, P. Krein","doi":"10.1109/IEMDC.2013.6556171","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556171","url":null,"abstract":"The dual-primal finite element tearing and interconnecting (FETI-DP) method is combined with the Newton-Raphson method to expand the capability and improve the efficiency of three-dimensional finite element analysis (FEA) of nonlinear electromechanical and electric machine problems. Despite its modeling capability and high degree of accuracy, FEA has high computational complexity, especially for nonlinear analysis. The FETI-DP method is a robust domain decomposition method, which is a suitable choice for improving the efficiency of large-scale 3-D nonlinear FEA. The FETI-DP method decomposes the original large-scale problem into multiple subdomains, which can then be handled by parallel computing techniques so that the total computation time is reduced significantly. Linear and nonlinear regions are separated using the FETI-DP method. This further improves simulation efficiency and flexibility. Cubic splines and relaxation techniques are adopted to ensure stable and fast convergence of the Newton-Raphson method.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115714090","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
Investigation of electromagnetic performance of salient-pole synchronous reluctance machines having different concentrated winding connections 不同集中绕组连接方式的凸极同步磁阻电机电磁性能研究
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556276
Z. Azar, Z. Zhu
{"title":"Investigation of electromagnetic performance of salient-pole synchronous reluctance machines having different concentrated winding connections","authors":"Z. Azar, Z. Zhu","doi":"10.1109/IEMDC.2013.6556276","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556276","url":null,"abstract":"This paper presents a comparative study of the electromagnetic performance of 6-stator/4-rotor pole switched reluctance (SR) machines having AC sinusoidal bipolar excitation which is equivalent to salient-pole synchronous reluctance (SynR) machines having different non-overlapping concentrated winding connections, i.e. asymmetric, symmetrical and hybrid. The output torque of such machines is mainly generated by the self and mutual inductances, which are principally highlighted in this paper. In addition, the average value and quality of output torque and phase and line voltage waveforms are also predicted and compared. During the investigations the influence of the magnetic saturation on the machine performances is particularly examined. In order to confirm and verify the predicted results, a prototype is constructed and tested under the three different winding connections.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"2012 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121009437","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: 12
The design of AC permanent magnet motors for electric vehicles: A design methodology 电动汽车用交流永磁电机的设计:一种设计方法
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556200
J. Goss, R. Wróbel, P. Mellor, D. Staton
{"title":"The design of AC permanent magnet motors for electric vehicles: A design methodology","authors":"J. Goss, R. Wróbel, P. Mellor, D. Staton","doi":"10.1109/IEMDC.2013.6556200","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556200","url":null,"abstract":"This paper presents a complete methodology for the design of AC permanent magnet motors for electric vehicle traction. Electromagnetic, thermal and mechanical performance aspects are considered and modern CAD tools are utilised throughout the methodology. A 36 slot 10 pole interior permanent magnet design example is used throughout the analysis.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123771075","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: 37
A sliding mode control based multi-functional power converter for electric vehicles and energy applications 一种基于滑模控制的多功能电力变换器，用于电动汽车和能源应用
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556176
W. Na, Basheer Quattum, Andy Publes, Vamsipriya
{"title":"A sliding mode control based multi-functional power converter for electric vehicles and energy applications","authors":"W. Na, Basheer Quattum, Andy Publes, Vamsipriya","doi":"10.1109/IEMDC.2013.6556176","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556176","url":null,"abstract":"In this paper, a sliding mode control based multifunctional power converter is presented for electric vehicles and renewable energy applications. The proposed power converter is a multi-functional converter, which has capabilities of buckboost, bidirectional functions and even fault tolerance. Each mode of operation of the proposed system were analyzed and to validate the system, a prototype test-bed is built and tested using a Digital Signal Processor (DSP). The results show that the proposed system could be applicable for energy (fuel cell/wind/solar) and electric vehicle application.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425547","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
Analytical model for slotless permanent magnet axial flux motors 无槽永磁轴向磁通电机的解析模型
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556183
C. Koechli, Y. Perriard
{"title":"Analytical model for slotless permanent magnet axial flux motors","authors":"C. Koechli, Y. Perriard","doi":"10.1109/IEMDC.2013.6556183","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556183","url":null,"abstract":"Permanent magnet axial flux motors are very well adapted to applications requiring a very short active length and a big diameter. They also have been used for micro-motors. Because of their size, these motors require the use of a permanent magnet and their winding is usually located in the air gap between stator and rotor. The size of the magnet is very small and the number of poles can be relatively high to generate a higher value for the Back-EMF at low speed. Therefore the effect of the magnetization process of the permanent magnet cannot be neglected. The paper presents an analytical method for accurately calculating the flux density in the air gap, the backEMF and torque of such a motor. This method can account for the permeability of the permanent magnet, the finite permeability of iron and the transition zone between two consecutive poles. It provides a quick way of determining and optimizing the performances of a slotless axial flux motor. The results of the model have been compared with measurements done on several prototypes of a micro-motor and there is good correlation.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122800922","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: 17
Open-circuit fault analysis of diode rectified multiphase synchronous generators for DC aircraft power systems 直流航空电力系统二极管整流多相同步发电机开路故障分析
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556208
S. Jordan, J. Apsley
{"title":"Open-circuit fault analysis of diode rectified multiphase synchronous generators for DC aircraft power systems","authors":"S. Jordan, J. Apsley","doi":"10.1109/IEMDC.2013.6556208","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556208","url":null,"abstract":"The more-electric concept is becoming prevalent in all modes of transport, particularly civil aerospace where significant savings on fuel and improved efficiency can be achieved through the use of electrical power systems. Increased electrical loading for in-flight cabin air conditioning, galley services and entertainment systems has led to a re-evaluation of aircraft architecture. DC electrical networks offer the opportunity to decouple the frequency of generated supply from the speed of the gas turbine engine, enabling the independent optimisation of both systems. Using generator-rectifier systems with a higher phase number upholds the safety critical nature of air transport whilst also allowing for a reduction in DC voltage ripple and reducing or eliminating the need for filter capacitance. A multiphase generator has built-in redundancy, offering the potential for continued operation with an open-circuit winding or diode fault, but with implications on the rating and DC power quality. This paper provides analysis, simulation and experimental validation of a reconfigurable, wound-field multiphase synchronous generator connected to a diode rectifier under open-circuit fault conditions for two winding configurations, star and delta.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122950423","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
Modeling dynamic end effects in rotary armature of rotary-linear induction motor 旋转直线感应电动机旋转电枢动态末端效应建模
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556231
E. Amiri, M. Jagieła, Oleksandr Dobzhanski, E. Mendrela
{"title":"Modeling dynamic end effects in rotary armature of rotary-linear induction motor","authors":"E. Amiri, M. Jagieła, Oleksandr Dobzhanski, E. Mendrela","doi":"10.1109/IEMDC.2013.6556231","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556231","url":null,"abstract":"The performance of twin-armature rotary-linear induction motor is presented in this paper. The stator consists of a rotary armature and linear armature placed aside one another. Both armatures have a common rotor which consists of solid iron cylinder covered with a thin copper layer. The rotor can move rotary, linearly or with helical motion. The linear motion generates dynamic end effect on both linear and rotary armature. Modeling such an effect in rotary armature is a significant challenge as it requires a solution considering motion with two degrees of mechanical freedom. The approach used to address linear motion on rotary armature is based on the combination of transient time-domain finite element model and frequency-domain slip frequency technique. The results obtained from finite element modeling are then verified by test carried out on experimental model of the motor what validates the proposed method.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129896073","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: 26
Design and measurements of the Double Layer Planar Motor 双层平面电机的设计与测量
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556254
J. Rovers, J. Jansen, E. Lomonova
{"title":"Design and measurements of the Double Layer Planar Motor","authors":"J. Rovers, J. Jansen, E. Lomonova","doi":"10.1109/IEMDC.2013.6556254","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556254","url":null,"abstract":"Moving-magnet magnetically levitated planar motors are considered for use as a wafer stage in the semiconductor lithographic industry. This puts high requirements on the accuracy and the dissipated power and cooling performance of such motors. A novel planar motor topology is developed, which consists of a double layered coil structure and is therefore referred to as Double Layer Planar Motor. This planar motor is analyzed using an electromagnetic model, a mechanical model, and a thermal model. This behavior is evaluated using a trajectory and performance criteria which are representative for the application. Both the static and the dynamic behavior is evaluated. Measurements on a prototype are presented.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129289296","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: 15
A novel method for the solution of a finite element-circuit coupled equation using an reduced equivalent equation 用简化的等效方程求解有限元-电路耦合方程的新方法
2013 International Electric Machines & Drives Conference Pub Date : 2013-05-12 DOI: 10.1109/IEMDC.2013.6556218
R. Dominguez, A. Medina
{"title":"A novel method for the solution of a finite element-circuit coupled equation using an reduced equivalent equation","authors":"R. Dominguez, A. Medina","doi":"10.1109/IEMDC.2013.6556218","DOIUrl":"https://doi.org/10.1109/IEMDC.2013.6556218","url":null,"abstract":"The Finite Element Method (FEM) has been extensively used to solve the field equations of electric machines or devices. It is possible to reduce the complexity of the method considering plane symmetry on the behavior of the magnetic field. Nevertheless, this simplification does not include the side effects of the magnetic field. It is possible to couple into the FEM field equation, a voltage-current circuit equation which includes resistances or inductances that allow a better modeling of the field side effects. Thus, a FEM-circuit coupled equation is obtained. In this paper, a novel method is proposed to solve a FEM-circuit coupled equation, and a field FEM equation in which its forcing function is known. The method consists on obtaining an reduced equivalent equation, using a nodal reordering of the field FEM equation and performing some matrix operations. The equivalent equation can be solved in the frequency domain and in the time domain.","PeriodicalId":199452,"journal":{"name":"2013 International Electric Machines & Drives Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123913193","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
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