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2011 International Conference on Electrical Machines and Systems最新文献

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Soft switching bidirectional DC-DC converter to reduce switching losses 软开关双向DC-DC变换器，减少开关损耗
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073568
Il-Ho Lee, Jun-Gu Kim, Jae-Hyung Kim, C. Won, Yong-Chae Jung
{"title":"Soft switching bidirectional DC-DC converter to reduce switching losses","authors":"Il-Ho Lee, Jun-Gu Kim, Jae-Hyung Kim, C. Won, Yong-Chae Jung","doi":"10.1109/ICEMS.2011.6073568","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073568","url":null,"abstract":"In this paper, soft switching bidirectional DC-DC converter is proposed. The proposed topology is consisted of two auxiliary switch, two resonant capacitors and one resonant inductor compared to conventional bidirectional DC-DC converter. Through employing ZVS(Zero Voltage Switching) and ZCS(Zero Current Switching) methods, switching loss occurs from each power switch is able to be reduced. We have performed mode analysis, simulation and experiment in order to analyze the proposed topology.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131729468","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
Electromagnetic design and performance evaluation on 75 kW axially laminated flux switching permanent magnet machine 75kw轴向层压磁通开关永磁电机的电磁设计与性能评价
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073716
W. Xu, Jianguo Zhu, Yongchang Zhang, Tianshi Wang
{"title":"Electromagnetic design and performance evaluation on 75 kW axially laminated flux switching permanent magnet machine","authors":"W. Xu, Jianguo Zhu, Yongchang Zhang, Tianshi Wang","doi":"10.1109/ICEMS.2011.6073716","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073716","url":null,"abstract":"One 75 kW axially laminated flux switching permanent magnet machine (ALFSPMM) with 12/14 (stator/rotor) poles is proposed in this paper. For the stator lamination in parallel with the direction of permanent magnet flux linkage, it can make full use of permanent magnet and reduce relevant flux leakage and iron loss especially in high speed applications. Because of partly serious saturation and nonlinear trait of inductance, optimal electromagnetic design has been done to decrease the cogging torque and part saturation of flux density distributed in the tip or edge of stator tooth and rotor pole. Theoretical investigation on ALFSPMM is confirmed by plentiful simulations mainly based on two-dimensional model analyzed by finite element algorithm on the platform of commercial software Ansoft Maxwell 12. Compared with the traditional flux switching permanent magnet machine (FSPMM), ALFSPMM has stronger torque density, greater flux weakening ability, and higher efficiency. It can be regarded as one ideal candidate for the drive system of plug-in hybrid electrical vehicle (PHEV).","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128938842","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: 21
Research on a 25MVA/10kV high power motor driving system based on IEGT power modules 基于IEGT功率模块的25MVA/10kV大功率电机驱动系统研究
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073951
Wenlong Wang, Haitao Zhang, Yu Zhang, Wei Shi, Qisheng Zhang, Xing Li
{"title":"Research on a 25MVA/10kV high power motor driving system based on IEGT power modules","authors":"Wenlong Wang, Haitao Zhang, Yu Zhang, Wei Shi, Qisheng Zhang, Xing Li","doi":"10.1109/ICEMS.2011.6073951","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073951","url":null,"abstract":"Large-capacity high-voltage inverter satisfies demand of energy saving and emission reduction. This paper presents a new 25MVA/10kV high power motor driving system based on IEGT power modules. The paper introduces the system configuration, and separately describes the design of power modules, the main control system, and motor control algorithm in details. Finally, the experiment results are shown to verify the performance of the system.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126591668","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
Research of passive automatic maximum wind energy tracking wind power generation system 无源最大风能自动跟踪风力发电系统的研究
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073597
B. Kou, Yinru Bai, H. Cao
{"title":"Research of passive automatic maximum wind energy tracking wind power generation system","authors":"B. Kou, Yinru Bai, H. Cao","doi":"10.1109/ICEMS.2011.6073597","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073597","url":null,"abstract":"This paper proposes a novel off-grid wind power generation system, comprising a double-winding permanent magnet synchronous generator, a three-phase controllable saturated reactor, two rectifiers, a battery and a load. The output power curve of the new system keeps in accordance with the maximum output power curve of the wind turbine, which makes the system track maximum wind energy automatically. A 300W prototype was manufactured. Experimental results show that the power output curve of the new system matches with the maximum output power curve of the wind turbine in a wide range of rotational speed. Compared with the traditional system, Wind energy utilization coefficient of the new system is improved greatly.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131005129","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 new decoupling control strategy for bearingless switched reluctance motors based on improved mathematical model 基于改进数学模型的无轴承开关磁阻电机解耦控制策略
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073907
Yu-kun Sun, Gaohong Xu, Q. Xiang, Yonghong Huang, Xianxing Liu, Tao Shi
{"title":"A new decoupling control strategy for bearingless switched reluctance motors based on improved mathematical model","authors":"Yu-kun Sun, Gaohong Xu, Q. Xiang, Yonghong Huang, Xianxing Liu, Tao Shi","doi":"10.1109/ICEMS.2011.6073907","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073907","url":null,"abstract":"This paper presents a new decoupling control strategy for a 12/8 bearingless switched reluctance motor (BSRM) with improved mathematical model. Firstly, the improved mathematical model is built by Maxwell stress tensor method selecting one-forth arc integration path of the fringing magnetic field. Then, a new decoupling control strategy is described. The average torque and radial force of the scheme is decoupled and the utilization of current is enhanced. Finally, finite element analysis (FEA) model under this control strategy is established, and simulation results verify that the proposed mathematical model and control strategy are effective.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133043422","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: 4
Analysis of position estimation error resulted from filter in carrier signal injection based sensorless control of PMSM 基于载波信号注入的永磁同步电机无传感器控制中滤波器产生的位置估计误差分析
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073884
W. Jianmin, Gao Jianwei
{"title":"Analysis of position estimation error resulted from filter in carrier signal injection based sensorless control of PMSM","authors":"W. Jianmin, Gao Jianwei","doi":"10.1109/ICEMS.2011.6073884","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073884","url":null,"abstract":"Position estimation errors resulted from filters in carrier signal injection based sensorless control of permanent magnet synchronous motor (PMSM) are analyzed. Expressions of position estimation error are derived for both rotating and pulsating voltage injection method when the stator resistance and filter's characteristic are taken into account. It is shown that influences of the filter on above two methods are quite different. In rotating injection, the position estimation error includes two components attributed to the stator resistance and the filter respectively. The latter is determined by the lagging phase angle of the filter at frequency (ω<inf>c</inf>−2ω<inf>r</inf>). It is independent of motor parameters and can be compensated easily and perfectly. In pulsating injection, the error is determined by the difference of lagging phase angles of the filter at (ω<inf>c</inf>+ω<inf>r</inf>) and (ω<inf>c</inf>−ω<inf>r</inf>), and strongly depends on motor parameters. In a motor with low L<inf>q</inf>/L<inf>d</inf>, the pulsating injection method without compensation may fail to track the rotor position at high speed. Compensation methods are proposed. The theoretical results are verified by simulations.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133081130","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: 11
Research on the parallel technique for the direct-drive wind power converter 直驱式风电变流器并联技术研究
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073596
Li Meng, W. Yong
{"title":"Research on the parallel technique for the direct-drive wind power converter","authors":"Li Meng, W. Yong","doi":"10.1109/ICEMS.2011.6073596","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073596","url":null,"abstract":"At present, the parallel back-to-back PWM converters which adopt the parallel mode of sharing DC bus are used in megawatt-level high-power wind generation system. However, there will be circular current when the switch states of two parallel converters are not the same and this circular current will increase system wastage and decrease system efficiency. This paper adopts a novel control strategy that adds a zero sequence circuiting current (ZSCC) control loop to the total output current loop and ameliorates PWM pulse drive method of parallel converters. This control strategy assures that the on-off times of two parallel converters are totally the same and consequently the impact of circular current will be eliminate. The simulations and experiments show that the converter can satisfy the system demands of reliability, circular current control and the hardware implementation.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133632109","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: 6
Protection schemes for DFIG considering rotor current and DC-link voltage 考虑转子电流和直流电压的DFIG保护方案
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073453
K. Okedu, S. Muyeen, R. Takahashi, J. Tamura
{"title":"Protection schemes for DFIG considering rotor current and DC-link voltage","authors":"K. Okedu, S. Muyeen, R. Takahashi, J. Tamura","doi":"10.1109/ICEMS.2011.6073453","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073453","url":null,"abstract":"This paper presents new schemes for protecting power converters used in doubly fed induction generator (DFIG) during a grid fault condition considering rotor current and DC-link voltage as the key points to be focused on. The different alternative methods for the protection are described, in which two schemes using the coordinated control of the d and q axis measured currents of the rotor side converter and series dynamic braking resistor (SDBR) connected to the stator are proposed and compared. The simulation results in PSCAD/EMTDC show that the two proposed schemes can eliminate the need for an expensive crowbar switch, because both could limit the rotor current of the DFIG within its nominal value during a grid fault.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"2002 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132678335","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: 16
Analysis and calculation of the 3D rotor temperature field of a generator-motor 发电机-电机转子三维温度场的分析与计算
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073617
H. Xia, Lin Li, J. Du, Lei Liu
{"title":"Analysis and calculation of the 3D rotor temperature field of a generator-motor","authors":"H. Xia, Lin Li, J. Du, Lei Liu","doi":"10.1109/ICEMS.2011.6073617","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073617","url":null,"abstract":"This paper builds the mathematical model for the rotor temperature field of a generator-motor. The solved region for the temperature field is simplified according to the symmetry in geometry. Based on the assumptions of the solved region and taken into account the difference between the rotor's windward side and leeward side, the rotor temperature fields are calculated by 3D Finite Element Method. The steady temperature distributions are obtained under three operating modes, and the transient temperature curves are plotted under the asymmetry operation and the double rated excitation operation. The results show that the rotor temperature is within the range of the permissible temperature of designed insulation and has enough tolerance.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128857622","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: 4
Design of direct-drive axial flux permanent magnet in-wheel machine for electric vehicle 电动汽车直驱轴向磁通永磁轮毂机设计
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073602
Xiao-feng Feng, Deng Qiu-ling, Liu Jian-cheng
{"title":"Design of direct-drive axial flux permanent magnet in-wheel machine for electric vehicle","authors":"Xiao-feng Feng, Deng Qiu-ling, Liu Jian-cheng","doi":"10.1109/ICEMS.2011.6073602","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073602","url":null,"abstract":"Indirect-drive electric vehicle system will improve the overall reliability and efficiency due to elimination of reduction gear and the differential gear. The paper discusses the design of direct-drive axial flux permanent magnet in-wheel machine for electric vehicle in order to achieve a wide speed range operation and low cogging torque. Fractional-slot winding and wedges made from soft magnetic composition material are adopted for increasing the value of the inductance, so as to improve the AFPM flux-weakening capability. Design results as well as simulation results verify the validation of the proposed method.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127650612","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
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