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Proceedings of Power Conversion Conference - PCC '97最新文献

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Unified PWM technique for real time power conversion 统一PWM技术实现实时功率转换
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645623
Dae-Woong Chung, S. Sul, Joohn-Sheok Kim
{"title":"Unified PWM technique for real time power conversion","authors":"Dae-Woong Chung, S. Sul, Joohn-Sheok Kim","doi":"10.1109/PCCON.1997.645623","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645623","url":null,"abstract":"In this paper, a new voltage modulation technique named 'unified PWM (pulse width modulation)' is described for high performance voltage generation in a 3-phase voltage-fed inverter. By considering the operation of the inverter, a simple but useful concept named 'effective time' could be established, and, fully employing this concept, a new voltage modulation technique is presented with detailed explanation and actual test results. The results show that (1) the implementation burden of PWM is conspicuously reduced, (2) change from one modulation scheme to another is also obtained easily and seamlessly, and (3) widely used overmodulation schemes are easily implemented.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115637352","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
Harmonic compensator for 50-Hz fed AC railway vehicles 50hz有轨交流车辆谐波补偿器
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645586
M. Ogasa, J. Krah, J. Holtz
{"title":"Harmonic compensator for 50-Hz fed AC railway vehicles","authors":"M. Ogasa, J. Krah, J. Holtz","doi":"10.1109/PCCON.1997.645586","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645586","url":null,"abstract":"AC railway vehicles controlled by PWM line-side power converters inject harmonic current into the feeding overhead line. This causes problems such as resonance expansions which produce malfunctions or overcurrents at substations and electromagnetic interference with signalling systems. Normal active filters only shift the harmonic frequencies to a higher range. A novel harmonic compensator produces an exact counter-MMF of which in the main transformer main flux is then sinusoidal. Experimental results from a small model of a Japanese AC railway vehicle are described. Especially the 3-4 kHz frequency range that coincides with the signalling band harmonic currents are quite well suppressed. From the result, this novel compensating method appears promising for any 50 Hz-fed PWM controlled AC railway traction system.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115678888","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
A new hybrid vector control for induction motor without speed and position sensors-frequency hybrid approach using new indirect scheme 一种新的无速度和位置传感器的异步电动机混合矢量控制方法——基于新间接方案的频率混合控制
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638148
S. Shinnaka
{"title":"A new hybrid vector control for induction motor without speed and position sensors-frequency hybrid approach using new indirect scheme","authors":"S. Shinnaka","doi":"10.1109/PCCON.1997.638148","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638148","url":null,"abstract":"This paper proposes a new hybrid vector control scheme for induction motors without speed and position sensors. It has the following interesting and distinguished features. The employed field orientation is pure rotor flux orientation. The field orientation scheme requires neither velocity nor position estimation at all. It is a completely seamless hybrid of indirect and direct orientation schemes and the indirect scheme is quite new and simple. Estimates of both rotor and stator fluxes can be obtained. It is completely free from variation of rotor electrical parameters in most operating cases. An instant estimate of rotor velocity for speed control is available. Rigorous numerical experiments are carried out in order to examine torque response with constant velocity in both motoring and regenerating operations, torque response in four-quadrant operation with variable velocity and speed response to variable commands in which maximum and minimum values are 500 and 1(rad/sec) respectively and acceleration and deceleration are /spl plusmn/400(rad/sec/sup 2/). Results show the high potential usefulness of the proposed hybrid scheme.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830870","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
Computer-aided simulation technique of digitally controlled switched-mode power conversion circuits and systems using state variable matrices 状态变量矩阵的数字控制开关模式功率转换电路和系统的计算机辅助仿真技术
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645647
H. Takano, S. Ulhaq, M. Nakaoka
{"title":"Computer-aided simulation technique of digitally controlled switched-mode power conversion circuits and systems using state variable matrices","authors":"H. Takano, S. Ulhaq, M. Nakaoka","doi":"10.1109/PCCON.1997.645647","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645647","url":null,"abstract":"A new generic simulation approach is presented in order to analyze digitally-controlled switching mode power converters. The computer-aided simulation procedure proposed here is based on a circuit equation modeled by time varying resistors taking place of the active switches and diodes, a state equation for the inductors and the capacitors, and an algebraic computation method to transform the matrices of the circuit equation into the matrices of the state equation. The feasible estimation method of the calculation time step in the numerical integration to solve the state equation is also discussed with its eigenvalues.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"106 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120981537","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
A new microcontroller based solar energy conversion modular unit 一种新型的基于单片机的太阳能转换模块
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638283
F. Huang, G. Zhimin, T. Forughian, D. Tien
{"title":"A new microcontroller based solar energy conversion modular unit","authors":"F. Huang, G. Zhimin, T. Forughian, D. Tien","doi":"10.1109/PCCON.1997.638283","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638283","url":null,"abstract":"This paper presents the design and the implementation of a new microcontroller-based solar energy conversion modular unit. The unit consists of an array of solar panels, a step-up chopper, a single-phase inverter, an AC mains power source and a microcontroller-based control unit. The novelty of this unit is that the switching device of the chopper is not only used for power conversion but also for maximum power point (MPP) detection. In existing MPP trackers, the MPP is detected by hardware. The parameters of such hardware are subject to changes of environmental conditions. In the new unit, the MPP is determined by a simple embedded software. With this new approach the modularization of the conversion from solar power to electric power at its maximum power point can be made more compact and more reliable.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121017291","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
Traction control of electric vehicle based on the estimation of road surface condition-basic experimental results using the test EV "UOT Electric March" 基于路面状况估计的电动汽车牵引控制——测试车“UOT electric March”的基础实验结果
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645576
Yoichi Hori, Y. Toyoda, Yoshimasa Tsuruoka
{"title":"Traction control of electric vehicle based on the estimation of road surface condition-basic experimental results using the test EV \"UOT Electric March\"","authors":"Yoichi Hori, Y. Toyoda, Yoshimasa Tsuruoka","doi":"10.1109/PCCON.1997.645576","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645576","url":null,"abstract":"The most distinct advantage of an electric vehicle is in its quick and precise torque generation. The authors propose two novel traction control techniques of electric vehicles: model-following control; and optimal slip ratio control. Their effectiveness is demonstrated by using the \"UOT Electric March\" test vehicle.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126748815","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: 61
Initial rotor position estimation of salient-pole brushless DC motors by artificial neural network 基于人工神经网络的凸极无刷直流电机转子初始位置估计
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645601
T. Senjyu, N. Urasaki, K. Uezato
{"title":"Initial rotor position estimation of salient-pole brushless DC motors by artificial neural network","authors":"T. Senjyu, N. Urasaki, K. Uezato","doi":"10.1109/PCCON.1997.645601","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645601","url":null,"abstract":"This paper presents an initial rotor position estimation method for salient-pole brushless DC motors (BLDCMs). An artificial neural network (ANN) is employed as an estimator of BLDCM at standstill. The ANN can express the relationship between the voltage and current of BLDCMs. The initial rotor position can be estimated by using only the current-signals from the ANN. The proposed method has the advantages of measurement noise immunity as well as no sensitivity to machine parameters. Computer simulation results verify the usefulness of the proposed method.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116029110","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
The instantaneous power theory based on mapping matrices in three-phase four-wire systems 基于映射矩阵的三相四线制瞬时功率理论
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645639
H. Kim, H. Akagi
{"title":"The instantaneous power theory based on mapping matrices in three-phase four-wire systems","authors":"H. Kim, H. Akagi","doi":"10.1109/PCCON.1997.645639","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645639","url":null,"abstract":"Characteristics of the instantaneous active/reactive powers and zero-sequence current/voltages are analyzed in three-phase four-wire systems. Control strategy for an active filter without energy storage components is proposed on the basis of mapping matrices. It can compensate for the zero-sequence current, irrespectively of whether or not a zero-sequence voltage exists in three-phase four-wire systems.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"448 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116407129","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: 49
Position estimation in induction machines utilizing rotor bar slot harmonics and carrier frequency signal injection 利用转子槽谐波和载波频率信号注入的感应电机位置估计
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645588
M. Degner, R. Lorenz
{"title":"Position estimation in induction machines utilizing rotor bar slot harmonics and carrier frequency signal injection","authors":"M. Degner, R. Lorenz","doi":"10.1109/PCCON.1997.645588","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645588","url":null,"abstract":"This paper presents a simple and robust way of utilizing harmonic saliencies for the estimation of rotor position. A carrier frequency voltage excitation is used to produce a carrier frequency current, which contains the desired spatial information. A closed-loop, tracking observer is then used to estimate the rotor position. Due to its reliance on a spatial saliency and carrier frequency signal injection, the technique is very robust over a wide speed range, including low and zero speed.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122859891","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
Energy saving vector control strategies for electric vehicle motor drives 电动汽车电机驱动的节能矢量控制策略
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645578
S. Vaez, V. I. John, M.A. Rahman
{"title":"Energy saving vector control strategies for electric vehicle motor drives","authors":"S. Vaez, V. I. John, M.A. Rahman","doi":"10.1109/PCCON.1997.645578","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645578","url":null,"abstract":"The applications of different energy saving vector control strategies to motor drives used in the electric vehicle (EV) are studied. The performance of an interior permanent magnet (IPM) motor drive under an off-line energy saving control over a typical EV driving cycle is presented. Discussing the difficulties and limitations of the off-line, and currently available on-line energy saving methods, an advanced on-line energy saving control strategy is proposed for EV applications. The strategy is based on an adaptive current vector control. The performance of an IPM motor drive under the proposed control strategy is evaluated experimentally. Test results are given to prove the validity of this strategy for energy saving in the motor drive.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129850638","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
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