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Analysis of flat voice coil motor for precision positioning system 精密定位系统用平面音圈电机分析
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073623
Liyi Li, Donghua Pan, Yongbin Tang, Tiecheng Wang
{"title":"Analysis of flat voice coil motor for precision positioning system","authors":"Liyi Li, Donghua Pan, Yongbin Tang, Tiecheng Wang","doi":"10.1109/ICEMS.2011.6073623","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073623","url":null,"abstract":"The analysis of a flat voice coil motor (VCM) with Halbach array structure is described. The motor is applied for precision positioning system. Because of omitting boundary condition, the method of images is adopted to predict the distributions of global and local magnetic field for obtaining precise calculations. The derivation of flux density formulae are shown in this paper. By comparing flux density distributions, it proves that Halbach array structure could improve air-gap flux density. The method of images and FEA curves are coincident, at different position, demonstrates the analytically predicted distributions of air-gap flux density is exact.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"33 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":"126357364","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
Simulation for the contact model of ring-type traveling wave ultrasonic motor on dSPACE-based 基于dspace的环形行波超声电机接触模型仿真
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073495
Juping Gu, Yanfeng Wang, Xiaoxin Wu, Zhike Xu, Deming Wang
{"title":"Simulation for the contact model of ring-type traveling wave ultrasonic motor on dSPACE-based","authors":"Juping Gu, Yanfeng Wang, Xiaoxin Wu, Zhike Xu, Deming Wang","doi":"10.1109/ICEMS.2011.6073495","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073495","url":null,"abstract":"The model between the rotor and the stator of ring-type traveling-wave ultrasonic motor has been proposed and simulated by dSPACE in this paper. A simulation model of contact surface in ring-type traveling-wave ultrasonic motor with stator diameter 60mm has established in this paper. Any control algorithm of the torque and the speed of RTWUSM can be realized in this half-practicality simulation platform easily. It is very convenient that we never have to change the hardware for driving RTWUSM as well as the software has changed. The algorithm can be verified as soon as possible. All these are necessary for the commercialization of RTWUSM in China.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"45 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":"125788083","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
Vector control method and driving characteristics of parallel-connected induction motor drives fed by a Matrix Converter 矩阵变换器并联感应电动机的矢量控制方法及驱动特性
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073557
A. Osawa, M. Yamazaki, K. Matsuse
{"title":"Vector control method and driving characteristics of parallel-connected induction motor drives fed by a Matrix Converter","authors":"A. Osawa, M. Yamazaki, K. Matsuse","doi":"10.1109/ICEMS.2011.6073557","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073557","url":null,"abstract":"A Matrix Converter is an electricity converter to operate direct convertion of Variable Voltage Variable Frequency (VVVF) without Direct Convertion (DC) link part. Some applied examples of motor drives by the Matrix Converter (Fig.1). This paper presents basic characteristic of parallel-connected dual induction motor drives with the Matrix Converter. Purposes of this system are low cost and saving space in the industrial field to operate plural motors. However, in case of the unbalanced loads, both motors are unstable and each motor makes the speed response differenced to cause the rotor flux change. We indicate the new strategy to control stably by applying the average value control in slip-frequency vector control. Moreover, we propose to decrease the speed response of two motors by choosing feed-forward term in the speed control system applying two degrees of freedom control (2DOF).","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"36 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":"121728844","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
Influence of electric excitation path and field current on the inductances of parallel hybrid excitation machine 电激励路径和励磁电流对并联混合励磁机电感的影响
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073690
Kong Liang, W. Xuhui, Fan Tao
{"title":"Influence of electric excitation path and field current on the inductances of parallel hybrid excitation machine","authors":"Kong Liang, W. Xuhui, Fan Tao","doi":"10.1109/ICEMS.2011.6073690","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073690","url":null,"abstract":"This paper present a method to calculate the d-and q-axis inductances of parallel hybrid excitation machine which takes the influence of electric excitation path and the field current into consideration. The armature inductances are the summation of inductances corresponding to the rotor magnetic path and the electric excitation path. The electric excitation path is highly effected by saturation, the nonlinear of the inductances are much more notable than conventional PM machine. On the other hand, the field current not only affects the saturation of the electric excitation path, but the main magnetic path. The analysis results will guide the HEM design and the performance prediction.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"2 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":"131336323","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
Calculation and analysis of 3-D nonlinear eddy current field and structure losses in transformer 变压器三维非线性涡流场及结构损耗的计算与分析
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073992
Yan Li, Eerhemubayaer, Xin Sun, Yongteng Jing, Jian Li
{"title":"Calculation and analysis of 3-D nonlinear eddy current field and structure losses in transformer","authors":"Yan Li, Eerhemubayaer, Xin Sun, Yongteng Jing, Jian Li","doi":"10.1109/ICEMS.2011.6073992","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073992","url":null,"abstract":"Magnetic leakage field and eddy current loss in tank, yoke clamps and other electrically conductive construction parts of transformer are computed by three-dimensional (3-D) nonlinear time harmonic finite element method (FEM). Core and tank material magnetizing characteristics were treated as nonlinear by using nonlinear B (H) curve. On this basis, distributions of eddy current losses in the construction parts are analyzed. The magnetic shields that added to tank wall and yoke clamps were used to reduce the eddy current losses in tank wall and yoke clamps of power transformer and the effect of different types of shields were discussed. Then some reference bases are provided for design of transformer.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"28 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":"131389496","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
Predictive direct torque and flux control of doubly fed induction generator with switching frequency reduction for wind energy applications 风电双馈感应发电机开关频率降低的预测直接转矩和磁链控制
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073721
Yongchang Zhang, Zhengxi Li, Tianshi Wang, Jiefeng Hu, Jianguo Zhu
{"title":"Predictive direct torque and flux control of doubly fed induction generator with switching frequency reduction for wind energy applications","authors":"Yongchang Zhang, Zhengxi Li, Tianshi Wang, Jiefeng Hu, Jianguo Zhu","doi":"10.1109/ICEMS.2011.6073721","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073721","url":null,"abstract":"A model based predictive torque and flux control (PTFC) is proposed in this paper for doubly fed induction generator (DFIG) applied in wind energy applications. Different from the conventional switching-table-based direct torque control (DTC), which selects the output vector from a switching table, the developed PTFC selects the most suitable vector minimizing the errors of rotor flux and torque based on predictions of their evolutions versus time. Compared to DTC with the same sampling frequency, there are significant reductions in both torque and flux ripples for PTFC with lower switching frequency, while their dynamic performances are similar. Furthermore, by incorporating the frequency reduction in PTFC, the average switching frequency can be reduced up to 38.76% without affecting its performance. The results of PTFC operating at a very low switching frequency of below 550 Hz are presented, validating the capability of PTFC to satisfy the low switching frequency requirement of high power wind energy applications. Simulation results are presented to validate the effectiveness of the proposed PTFC.","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":"132064737","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 a novel interior permanent magnet machine for hybrid electric vehicle traction 一种新型混合动力汽车内置式永磁牵引机构的设计与分析
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073327
Aimeng Wang, Y. Jia, Shuhui Dong
{"title":"Design and analysis of a novel interior permanent magnet machine for hybrid electric vehicle traction","authors":"Aimeng Wang, Y. Jia, Shuhui Dong","doi":"10.1109/ICEMS.2011.6073327","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073327","url":null,"abstract":"This paper presents a detailed analysis and comparison of a novel interior permanent magnet (IPM) machine for high performance traction applications. The influence of PM topology and winding selections on IPM machine's field weakening performance and ripple torque is investigated. Detailed comparisons of the performance characteristics that include important issues such as the back-EMF voltage and its harmonic analysis, magnet mass and cogging torque are presented. Finally, the 36-slot-8-pole PM machine with rotor topology of W-shape has a good flux-weakening performance and is a good candidate for electric vehicle Traction.","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":"132397402","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
Improvement of power quality in electric arc furnace with considering economic index 考虑经济指标的电弧炉电能质量改善
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073380
M. Mahdavian, G. Shahgholian, Maryam Golibagh, A. Etesami, Ehsan Attarpour
{"title":"Improvement of power quality in electric arc furnace with considering economic index","authors":"M. Mahdavian, G. Shahgholian, Maryam Golibagh, A. Etesami, Ehsan Attarpour","doi":"10.1109/ICEMS.2011.6073380","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073380","url":null,"abstract":"In this paper, series and parallel compensators of STATCOM and DVR are introduced and the comparison of these two in compensating of power quality phenomena from electric arc furnace is provided. STATCOM is a shunt active filter and DVR is a series active filter. Method which has been selected for control of every one of these devices is an optimal control way that it minimizes power losses.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"2129 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":"129973195","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 on control strategies of open-winding permanent magnetic generator 开绕组永磁发电机控制策略研究
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073582
Qingtang Deng, Jiadan Wei, Bo Zhou, Chunjiang Han, C. Chen
{"title":"Research on control strategies of open-winding permanent magnetic generator","authors":"Qingtang Deng, Jiadan Wei, Bo Zhou, Chunjiang Han, C. Chen","doi":"10.1109/ICEMS.2011.6073582","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073582","url":null,"abstract":"This paper presents a novel integrated starter-generator system consisted of engine, open-winding permanent magnetic synchronous machine, storage battery, voltage source converter (VSC) and rectifier for overcoming the difficulties of voltage regulation and narrow speed range of conventional integrated starter-generator system based on permanent magnetic machine. In the proposed system, one side of the generator is connected to rectifier, the other side is connected to VSC for output voltage regulation. This paper studies two control strategies, id = 0 control and unity power factor (UPF) control, of open-winding permanent magnetic synchronous generator (PMSG) by theoretical analysis, derivation of formulas and simulation, the results indicates that the system is capable of output voltage regulation over the load and speed changes, the power of the generator, storage battery and load are balanced by the bi-directional electronic converter VSC, the power factor of generator decreases accordingly when the load current increase at id = 0 control strategy, and the unity power factor is obtained when UPF control strategy is taken, comparative analysis is presented at the end of this paper.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"58 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":"134199021","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
Dual-mode power control strategy for a new dual power flow wind power generation system 新型双潮流风力发电系统的双模功率控制策略
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073986
Ying Zhu, M. Cheng, W. Hua, Wei Wang
{"title":"Dual-mode power control strategy for a new dual power flow wind power generation system","authors":"Ying Zhu, M. Cheng, W. Hua, Wei Wang","doi":"10.1109/ICEMS.2011.6073986","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073986","url":null,"abstract":"This paper presents a dual-mode power control strategy for a dual power flow (DPF) wind power generation system (WPGS). When the wind power is below the rated value, two maximum power point tracking (MPPT) methods, namely speed feedback control and torque feedback control, are adopted and compared. On the other hand, when the wind power is above the rated value, the power control would be taken and then the rotating speed of outer rotor remain constant. Besides, the smooth switching method of the two modes is given. The simulation model of DPF-WPGS is built based on Matlab/Simulink and the effectiveness of the dual-mode strategy is verified by the simulation results.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"48 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":"133875712","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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