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2015 18th International Conference on Electrical Machines and Systems (ICEMS)最新文献

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The importance of load pulse timing in aircraft generation 负载脉冲定时在飞机发电中的重要性
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385247
S. C. Ahumada, S. Garvey, Tao Yang, P. Wheeler, H. Morvan
{"title":"The importance of load pulse timing in aircraft generation","authors":"S. C. Ahumada, S. Garvey, Tao Yang, P. Wheeler, H. Morvan","doi":"10.1109/ICEMS.2015.7385247","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385247","url":null,"abstract":"In this paper the effect of load pulse timing on the shaft of an aircraft generator is studied on terms of endurance and ultimate stresses. For this, two types of loads connections are considered: step electrical load and pulsating electrical loads. For the first case, it is proposed that a correct timing of a pulse load connection can zero the transients on the shaft. After for the case of a pulsating electrical load, like radar or a heating system, boundaries in terms of carrier frequency are defined in order to minimize the vibrations. For both cases results obtained by simulation are presented and compared with analysis.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":" 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132187185","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
Research of speed-torque characteristics of brushless DC motor based on back electromotive force 基于反电动势的无刷直流电动机速度转矩特性研究
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385240
Hou Hongsheng, Liu Weiguo
{"title":"Research of speed-torque characteristics of brushless DC motor based on back electromotive force","authors":"Hou Hongsheng, Liu Weiguo","doi":"10.1109/ICEMS.2015.7385240","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385240","url":null,"abstract":"Speed-torque characteristics of brushless DC motors with trapezoidal and sinusoidal back electromotive force (EMF) based on two devices conducted drive method are analyzed separately. A back EMF coefficient using the average value during conduction region is used to calculate the speed-torque characteristics with real back EMF. Simulation and experimental results show this method can precisely meet the real speed-torque characteristics.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134344008","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
Comparison of SVPWM for five level NPC H-bridge inverter and traditional five level NPC inverter based on line-voltage coordinate system 基于线电压坐标系的五电平NPC h桥逆变器与传统五电平NPC逆变器的SVPWM比较
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385100
Haotian Chang, R. Wei, Qiongxuan Ge, Xiaoxin Wang, Haibin Zhu
{"title":"Comparison of SVPWM for five level NPC H-bridge inverter and traditional five level NPC inverter based on line-voltage coordinate system","authors":"Haotian Chang, R. Wei, Qiongxuan Ge, Xiaoxin Wang, Haibin Zhu","doi":"10.1109/ICEMS.2015.7385100","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385100","url":null,"abstract":"Two types of five-level inverter topology structure will be discussed in this paper: traditional five-level NPC inverter and five-level NPC H-bridge inverter. Except for the comparison of the two topology structures, the closed-loop control method of the neutral point balancing of the five-level NPC H-bridge inverter will be presented in the paper. For the modulation method of two five-level inverters, the traditional SVPWM won't be used. In order to simplify the calculation, SVPWM based on line-voltage coordinate system will be used. At the end of paper, the simulation results of the two topology structures will be presented when the frequencies of the reference voltage vector are different with the load of resistance and inductance or synchronous motor.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114211181","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
Performance evaluation of three-phase induction generator operating as grid connected single-phase induction generator using electronic capacitor 采用电子电容的三相感应发电机作为并网单相感应发电机运行的性能评价
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385132
S. Yukhalang, B. Sawetsakulanond, V. Kinnares
{"title":"Performance evaluation of three-phase induction generator operating as grid connected single-phase induction generator using electronic capacitor","authors":"S. Yukhalang, B. Sawetsakulanond, V. Kinnares","doi":"10.1109/ICEMS.2015.7385132","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385132","url":null,"abstract":"This paper presents performance evaluation of three-phase induction generator operating as a grid connected single phase induction generator using electronic capacitor for variable speed wind energy applications. When the existing delta connected three-phase can operate as a single-phase induction generator by voltage control techniques using electronic capacitor. The proposed converter system for the front end converter, a single-phase full bridge IGBT converter offers bidirectional power flow for the machine operates as a motor and generator modes. For the machine end converter, half bridge IGBT converter offers excitation of the generator. Comparison between one capacitor connecting an external suitable across terminals and electronic capacitor will be given. Performance evaluation like electromagnetic torque, power factor, speed, THDi for both sides of the system for variable speed of a prime mover is given by simulation using MATLAB/Simulink.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114399957","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
Efficiency map prediction of flux switching machine 磁通开关机效率图预测
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385276
S. B. Shah, A. Arkkio
{"title":"Efficiency map prediction of flux switching machine","authors":"S. B. Shah, A. Arkkio","doi":"10.1109/ICEMS.2015.7385276","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385276","url":null,"abstract":"The foremost requirement of todays electric vehicle is comfort and power. The challenge that todays electric motor designer face is to have a large traction torque at low speed and wide constant power speed range. Flux switching machine has magnets parallel to stator winding that avoids the risk of demagnetisation because of better thermal cooling. Efficiency map of such machines can be determined efficiently from the response surface method using control algorithm, optimisation and finite element analysis.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114725506","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
High efficiency power supply unit for server power application 用于服务器电源应用的高效率电源单元
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385080
Jong-mu Lee, Seung-Wook Hyun, C. Won
{"title":"High efficiency power supply unit for server power application","authors":"Jong-mu Lee, Seung-Wook Hyun, C. Won","doi":"10.1109/ICEMS.2015.7385080","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385080","url":null,"abstract":"In this paper proposed highly efficiency PSU(Power Supply Unit) for server power supply. To minimize power conversion loss, PFC(Power Factor Collection) circuit was designed into Bridgeless PFC using two switching components with 2 SiC diodes, and synchronous rectifier switching method was applied. An isolated DC/DC converter used LLC SRC(Series Resonance Converter) to increase power efficiency and reduce the voltage and current ripple, furthermore, the diode on the secondary side used the MOSFETs for synchronous rectifying with low Rds(on) to minimize the loss. Lastly, buck-boost converter circuit was chosen to step down the bucked 12V into 5V and 3.3V, the voltages which almost server power used. And converter design and loss reduction method was proposed. The whole circuit was designed with 650[W], and simulated and tested to verify theories and efficiency.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114747326","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
Power flow and efficiency analysis of three-phase induction generator for grid connected system 并网系统三相感应发电机潮流及效率分析
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385020
C. Suppitaksakul, P. Phanuphol, S. Dangeam
{"title":"Power flow and efficiency analysis of three-phase induction generator for grid connected system","authors":"C. Suppitaksakul, P. Phanuphol, S. Dangeam","doi":"10.1109/ICEMS.2015.7385020","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385020","url":null,"abstract":"This paper presents a power flow model of induction generator for grid connected system. In order to determine the power of induction generator that flow to the electrical distribution system. Parameters of a three-phase squirrel cage induction motor in which obtain from stator, rotor and iron-core are used in characteristic analyzing. There parameters are also employed to establish a mathematical model of the induction generator. The simulation results from the proposed model are compared to the results of the implemented testing set in the laboratory. Then the efficiency of the generators is discussed. From the experimental results, it is found that the model simulation provided power flow results tend to be the same as the testing set with efficiency of 80%. Consequently, it can conclude that the proposed model can be use for induction generator sizing selection.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115843997","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: 5
Nonlinear reluctance network method for synchronous reluctance machine analysis 同步磁阻电机非线性磁阻网络分析方法
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385163
T. Hubert, R. Steckel, M. Reinlein, A. Kremser, H. Herzog
{"title":"Nonlinear reluctance network method for synchronous reluctance machine analysis","authors":"T. Hubert, R. Steckel, M. Reinlein, A. Kremser, H. Herzog","doi":"10.1109/ICEMS.2015.7385163","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385163","url":null,"abstract":"In rotating electrical machine design, the magnetic equivalent circuit based on the reluctance network method seems to be a fair tradeoff between computational time and precision. Therefore this paper deals with a semi-analytical calculation method of the direct and quadrature axis magnetic circuit in Reluctance Synchronous Machines (RSM) by the means of a nonlinear reluctance network. The corresponding non-linear equation systems are derived by forming separated equivalent magnetic networks of the stator and the multiple flux-barrier rotor divided by the air-gap. An adaptive interconnection network to model the air-gap is not needed and as a result relevantly simplifies the analysis compared to conventional reluctance network calculation with one global system. However the analytical calculation model provides results significantly faster than Finite Element Method (FEM) with a sufficient precision and thus is suitable for a first rough design of the RSM.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"400 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115909070","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
Study to reduce the amount of magnetic materials in IPM motor which focuses on the rare earth magnet usage and demagnetization 减少永磁电机中磁性材料用量的研究主要集中在稀土磁铁的使用和退磁方面
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385025
M. Satoh, Seiichi Kaneko, M. Tomita, S. Doki
{"title":"Study to reduce the amount of magnetic materials in IPM motor which focuses on the rare earth magnet usage and demagnetization","authors":"M. Satoh, Seiichi Kaneko, M. Tomita, S. Doki","doi":"10.1109/ICEMS.2015.7385025","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385025","url":null,"abstract":"Recently, the IPM motors for driving the compressors of the air-conditioners use often the rare-earth magnet. Soaring prices of it, however, is becoming serious problem. In this paper, a new IPM motor, which the use of rare earth magnet is reduced with pay attention to the demagnetization, is proposed. The experimental results show that the proposed motor is very useful.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124841433","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
Core loss increase due to inverter carrier frequency in an interior permanent magnet synchronous motor 内置式永磁同步电动机中逆变器载流子频率增加导致铁芯损耗增加
2015 18th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2015-10-01 DOI: 10.1109/ICEMS.2015.7385142
N. Denis, K. Fujitani, Y. Kato, Masaharu Ieki, K. Fujisaki
{"title":"Core loss increase due to inverter carrier frequency in an interior permanent magnet synchronous motor","authors":"N. Denis, K. Fujitani, Y. Kato, Masaharu Ieki, K. Fujisaki","doi":"10.1109/ICEMS.2015.7385142","DOIUrl":"https://doi.org/10.1109/ICEMS.2015.7385142","url":null,"abstract":"This paper investigates the core losses of an interior permanent magnet synchronous motor (IPMSM) under no-load condition. Two experimental tests have been carried out to observe the impact of the pulse-width modulation (PWM) inverter voltage supply on the core losses. The results show that the high frequency harmonic of the voltage supply is responsible for about 22% of the total core losses.","PeriodicalId":324610,"journal":{"name":"2015 18th International Conference on Electrical Machines and Systems (ICEMS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123281226","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
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