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

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New digital redesign method by N-Delay control and its application 基于N-Delay控制的数字再设计新方法及其应用
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645666
H. Fujimoto, A. Kawamura
{"title":"New digital redesign method by N-Delay control and its application","authors":"H. Fujimoto, A. Kawamura","doi":"10.1109/PCCON.1997.645666","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645666","url":null,"abstract":"A new digital redesign method is proposed for feedback control systems, by which the states in the continuous-time system are completely reserved in the redesigned sampled-data system. The features of the proposed method are: (1) the N-Delay control is employed, and the lth plant input is changed N/sub l/ times during one sampling period; (2) the states of the redesigned sampled-data system completely match those of the original continuous-time closed-loop system at every sampling period; and (3) the proposed redesign method can be applicable for a state-feedback and/or a dynamic controller. An illustrative example of position control using a DC servo motor is presented. The advantages of the proposed redesign approach are demonstrated both in the time and frequency domains.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"9 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":"121815452","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
Single-switch auxiliary resonant converters 单开关辅助谐振变换器
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638334
M. Shimada, M. Nakamura
{"title":"Single-switch auxiliary resonant converters","authors":"M. Shimada, M. Nakamura","doi":"10.1109/PCCON.1997.638334","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638334","url":null,"abstract":"This paper presents new single-switch auxiliary resonant converters which can operate in a soft-switching way without auxiliary switches. In the proposed converter circuits, the capacitors of the resonant circuit act as lossless snubbers which can be expected to reduce the switching losses, the switching stresses and EMI noise on the power semiconductor device. Moreover they are also capable of conventional PWM control. The principle of operation, simulated results, experimental results and other applications are presented to verify the analysis.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"133 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":"116547670","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
Control and diagnosis for AC drives and UPS systems using soft computing 使用软计算对交流驱动器和UPS系统进行控制和诊断
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645665
Y. Dote, R. Hoft
{"title":"Control and diagnosis for AC drives and UPS systems using soft computing","authors":"Y. Dote, R. Hoft","doi":"10.1109/PCCON.1997.645665","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645665","url":null,"abstract":"Soft computing was proposed by Dr. L. Zadeh, Director of Berkeley Initiative Soft Computing Center, University of California, Berkeley, USA, in order to solve complicated problems which had not been solved by hard computing with Neumann type computers. It includes neuro (NN), fuzzy computing (FS), chaos computing (CS), genetic algorithms (GA), immune network computing (IN) and others. This paper describes soft computing applied to power electronics and motion control systems which are nonlinear or unmodelled systems. It makes them intelligent systems and gives automated design methods and automated tuning methods by combining the above mentioned soft computing approaches.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"23 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":"131186030","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
Stability analysis and performance evaluation of AC side current control system of voltage type converters 电压型变流器交流侧电流控制系统稳定性分析及性能评价
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638355
A. Draou
{"title":"Stability analysis and performance evaluation of AC side current control system of voltage type converters","authors":"A. Draou","doi":"10.1109/PCCON.1997.638355","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638355","url":null,"abstract":"A new control method for voltage type PWM AC to DC converters with reduced number of sensors is proposed. To reduce the waveform distortion and DC offset current of the supply current, state feedback control of the LC filter in the AC side is used. Analysis of the current control system, and stability analysis to determine optimum values of feedback gains are reported, The performance of the PWM rectifier with the proposed control strategy is confirmed by experiments, where the transient dynamic response was greatly improved.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"14 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":"131553341","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
Combined optimality and robustness assessments for interconnected power converters-theoretical and experimental results 互联电源变流器的综合最优性和鲁棒性评估——理论和实验结果
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645652
C. Burlacu, Hiroyuki Ohsaki, E. Masada
{"title":"Combined optimality and robustness assessments for interconnected power converters-theoretical and experimental results","authors":"C. Burlacu, Hiroyuki Ohsaki, E. Masada","doi":"10.1109/PCCON.1997.645652","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645652","url":null,"abstract":"More reliable and a respective better power quality are the main requirements for any power supply system operating for a distributed power network, an industrial plant or, in a more particular case, for a train drive. A new algorithm to decide, compute and analyze a compensation method that improves the power system performance is proposed, based on a complex bilinear model of two parallel connected voltage-type power converters. Analysis is performed for normal and faulted operation, with emphasis on the combined purposes-input currents' quality and system's reliability. A specially computed term is used for the feedback compensation and an optimum parameter identification is explained providing a strong basis for a unified theory of analysis for hybrid bilinear (biconnected) systems. It is proved that the method acts automatically for any of the analyzed operation conditions, and an experimental approach proves the theoretical analysis.","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":"133198367","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
Propulsion control experiments in mass-control mode of an underwater travelling Marine-Express model vehicle ME02 海洋快车水下航行器ME02质量控制模式推进控制实验
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638258
K. Yoshida, L. Shi, H. Takami
{"title":"Propulsion control experiments in mass-control mode of an underwater travelling Marine-Express model vehicle ME02","authors":"K. Yoshida, L. Shi, H. Takami","doi":"10.1109/PCCON.1997.638258","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638258","url":null,"abstract":"A unique linear synchronous motor (LSM) vehicle ME02 is designed to travel underwater based on the theory of new combined levitation and propulsion for the Marine-Express. This paper presents a stable underwater-propulsion-control experiment in a mass-control made where the vehicle is sustained by guide-rollers. In this mode, ME02 vehicle can run with guide-rollers contacting with the LSM guideway both in repulsive-mode and in attractive-mode by controlling the lift force to be a required value. Laboratory experiments have shown that ME02 vehicle had been controlled successfully to run underwater in the mass-control mode by applying the decoupled-control method of lift and thrust forces.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"34 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":"133602072","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
Torque/current ratio improvement of reluctance motor under consideration of teeth design and current waveform 考虑齿形设计和电流波形的磁阻电机转矩/电流比改善
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638269
T. Kosaka, N. Matsui
{"title":"Torque/current ratio improvement of reluctance motor under consideration of teeth design and current waveform","authors":"T. Kosaka, N. Matsui","doi":"10.1109/PCCON.1997.638269","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638269","url":null,"abstract":"The developed torque of reluctance motors depends on the inductance space distribution and the current waveforms. Generally, the inductance distribution includes the space harmonics, which have the major effects on the torque ripple under the sinusoidal current drive. The torque ripple can be compensated for by modifying the instantaneous current waveforms. A combination of space harmonics of inductance and time harmonics of current is studied in the paper from the standpoint of instantaneous torque. The analysis shows the combination of space and time harmonics can improve the torque/current/sup 2/ ratio, while the torque ripple can be suppressed within a reasonable range. From this result, the design of stator and rotor teeth is examined under considerations of applied current waveforms.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"76 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":"131817311","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
A new topology for single phase UPS systems 单相UPS系统的新拓扑
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638374
G. Su, T. Ohno
{"title":"A new topology for single phase UPS systems","authors":"G. Su, T. Ohno","doi":"10.1109/PCCON.1997.638374","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638374","url":null,"abstract":"This paper presents a new converter topology, based on a single switch AC/DC or DC/DC boost converter combined with a half bridge inverter, suitable for on-line single phase UPS systems. The converter uses only four active switches, including the one for maintaining the charge of storage battery, to realize very desirable features. These include sinusoidal input currents, a common neutral connection-eliminating the requirement of an isolation transformer, low voltage storage battery as well as its charge/discharge regulations. Further, higher AC-DC conversion efficiency can be obtained due to reduced voltage stresses on the switch in the boost converter during normal operation, compared with conventional half bridge converters. Detailed simulation results and experimental results are included in this paper.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"8 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":"134399786","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
Dynamic model of fluorescent lamp implemented in PSpice 在PSpice中实现荧光灯的动态模型
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638352
K. Tseng
{"title":"Dynamic model of fluorescent lamp implemented in PSpice","authors":"K. Tseng","doi":"10.1109/PCCON.1997.638352","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638352","url":null,"abstract":"This paper presents a discharge arc model which can represent approximately both static and dynamic characteristics of a typical fluorescent lamp controlled by a power electronic circuit. The proposed model was developed from the combination and modifications of the classical Cassie and Mayr equations. The equations have been expressed in a form suitable for incorporation into circuit simulators employing the nodal analysis method of equation solving. The model has been test implemented in the PSpice circuit simulator. Simulated and experimental results appear to be in good agreement.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"45 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":"134237116","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
A practical approach to minimize the zero-sequence current harmonics in power distribution systems 一种减小配电系统零序电流谐波的实用方法
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638278
P. Dahono, R. E. Widjaya, Syafrudin, Qamaruzzaman
{"title":"A practical approach to minimize the zero-sequence current harmonics in power distribution systems","authors":"P. Dahono, R. E. Widjaya, Syafrudin, Qamaruzzaman","doi":"10.1109/PCCON.1997.638278","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638278","url":null,"abstract":"In this paper, a simple and practical approach to minimize the zero-sequence current harmonics in three-phase four-wire power distribution systems is proposed. The zero-sequence current harmonics are minimized by using a combination of a very low zero-sequence impedance transformer and a very high zero-sequence impedance transformer. The very low zero-sequence-impedance transformer is shunt connected to the load and the very high zero-sequence impedance transformer is series connected to the source. The series connected transformer will act as a zero-sequence current isolator between the source and load and, therefore, almost all of zero-sequence currents which are generated by the load will flow through the shunt connected transformer. Experimental results are included to verify the proposed approach.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"81 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":"133274568","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: 28
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