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[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91最新文献

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Nonlinear continuous time control of a bidirectional coupled-inductor Cuk converter 双向耦合电感Cuk变换器的非线性连续时间控制
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172406
J. Majó, L. Martinez, A. Poveda, L. García de Vicuña, F. Guinjoan, A.F. Sanchezx, J. Marpinard, M. Valentin
{"title":"Nonlinear continuous time control of a bidirectional coupled-inductor Cuk converter","authors":"J. Majó, L. Martinez, A. Poveda, L. García de Vicuña, F. Guinjoan, A.F. Sanchezx, J. Marpinard, M. Valentin","doi":"10.1109/INTLEC.1991.172406","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172406","url":null,"abstract":"The authors present the analysis and design of a nonlinearly controlled Cuk converter with magnetic coupling between inductors under conditions of order reduction that is suitable for large-signal applications. The bidirectional converter is described by a continuous bilinear model of state variable average values. The nonlinear control law linearizes the differential equation corresponding to the magnetizing current averaged value, guaranteeing the system stability around the operating point. The obtained results show the feasibility of a large-signal control of pulsewidth-modulated (PWM) complex converters.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127497073","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
Considerations for selecting and sizing UPS systems for critical loads 为关键负载选择和确定UPS系统尺寸的考虑因素
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172435
H. Joshi
{"title":"Considerations for selecting and sizing UPS systems for critical loads","authors":"H. Joshi","doi":"10.1109/INTLEC.1991.172435","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172435","url":null,"abstract":"The author presents a discussion of considerations for selecting and sizing uninterruptible power supply systems (UPSs). Various applications are discussed and illustrative examples are provided. As the UPS itself is required to maintain continuity of power of appropriate quality, its own protection requirements against input supply disturbances are also discussed. Effective sizing is heavily dependent on identifying types of loads and gathering computer system manufacturer data sheets and start up sequence or procedure and type of electrical distribution system of critical loads. The requirements of distribution are to be considered at the stage of sizing itself. A knowledge of the power tolerance envelope acceptable to loads can determine the UPS output specifications and acceptable tolerances.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126361699","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
Ferroresonant circuit analysis in a three-dimensional state space 三维状态空间中的铁谐振电路分析
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172390
J. Ellis, T. Wilson
{"title":"Ferroresonant circuit analysis in a three-dimensional state space","authors":"J. Ellis, T. Wilson","doi":"10.1109/INTLEC.1991.172390","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172390","url":null,"abstract":"The authors demonstrate the use of state-space analysis to find the steady-state operation of a ferroresonant circuit. The state of the circuit is represented as a point in a three-dimensional state space, and the circuit operation is represented as motion in that space. A piecewise-linear model of the ferroresonant circuit operating in a typical high-frequency application is developed, and the process of constructing a steady-state trajectory using that model is described. Computed and experimental waveforms are compared. The piecewise-linear model and the construction of steady-state trajectories are used to study the range of input and output conditions over which a particular ferroresonant circuit can operate. The predicted regulation data is compared to experimental results.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126378492","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 novel high efficiency UPS using improved inverter and DC to DC converter 采用改进型逆变器和DC - DC变换器的新型高效UPS
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172455
Y. Eishima, M. Jinno, F. Tominaga, H. Sakamoto, K. Harada
{"title":"A novel high efficiency UPS using improved inverter and DC to DC converter","authors":"Y. Eishima, M. Jinno, F. Tominaga, H. Sakamoto, K. Harada","doi":"10.1109/INTLEC.1991.172455","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172455","url":null,"abstract":"The uninterruptible power supply (UPS) presented combines a rectifier of high input power factor, a DC/DC power converter and a pulsewidth-modulated (PWM) inverter. However, in the inverter circuit, because a divided choke snubber was devised, short circuit failure can be avoided without giving the drive pulse of switching element a dead time period. Also because an LD snubber was designed, the current surge and the voltage surge do not occur. The performance of the switched snubber, the effectiveness of the LD snubber and of the divided choke snubber were verified by the experiments. Experimental results of testing these schemes are reported.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115491174","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
Experiment study for current-mode parallel resonant converter 电流型并联谐振变换器的实验研究
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172418
K. Mizuta, T. Yaginuma, K. Onda, T. Mizukami, N. Kohno
{"title":"Experiment study for current-mode parallel resonant converter","authors":"K. Mizuta, T. Yaginuma, K. Onda, T. Mizukami, N. Kohno","doi":"10.1109/INTLEC.1991.172418","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172418","url":null,"abstract":"The authors present the analysis of a current-mode parallel resonant power converter, and discuss the characteristics of an experimental realization of the converter and the structure of the resonant inductor. Of the several operation modes of the converter, the one most suitable for information processing equipment was identified in terms of the recovery time of the MOSFET's parasitic diode at high frequency. Normalized circuit characteristics were determined. A 5 V, 150 A converter was developed to verify the analysis, and potential problems in the design were identified, of which the loss in the resonant inductor was found to be the most critical.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132216937","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
Analysis of the current runaway phenomenon in the overcurrent limited mode of the DC-DC converter with current-injected control 注入电流控制DC-DC变换器过流限流模式下电流失控现象分析
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172381
H. Matsuo, F. Kurokawa, K. Tanaka
{"title":"Analysis of the current runaway phenomenon in the overcurrent limited mode of the DC-DC converter with current-injected control","authors":"H. Matsuo, F. Kurokawa, K. Tanaka","doi":"10.1109/INTLEC.1991.172381","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172381","url":null,"abstract":"In the overcurrent-limited mode of the DC-DC converter with current-injected control, it is often observed that the excessive current flows through the main power switch when the load resistance is extremely small. The authors investigate the minimum on-time interval of the switch and analyze the current runaway phenomenon in the overcurrent-limited mode of a DC-DC converter with current-injected control. As a result, the mechanism of the current runaway phenomenon is clarified and the design condition for preventing this phenomenon is presented.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132730989","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
New power supply structure for telecom equipments toward a unique level of conversion 新的供电结构使电信设备向着一个独特的层次转换
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172401
D. Marquet, J. Girard
{"title":"New power supply structure for telecom equipments toward a unique level of conversion","authors":"D. Marquet, J. Girard","doi":"10.1109/INTLEC.1991.172401","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172401","url":null,"abstract":"The authors deal with concepts about supplying power to electronic or optical switching exchanges based on the latest technical developments. They start from current and future energy needs estimations. Reliability data of telecommunications and their impact on the power supply required performance are studied. To support the assumptions, components and architectural progress are examined. The weak points of today's solutions are highlighted and it is shown that evolution is necessary from centralized to decentralized toward unlocalized energy resources. Here, battery packs may back-up groups of telecommunication boards needing low voltages like 3, 5, 12, or -12 V. Due to associated electronic control, they are independent and may be parallelized to increase the autonomy.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125074847","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
PWM DC-DC converter with a resonant commutation means 采用谐振整流方式的PWM DC-DC变换器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172414
S. Atoh, H. Yoshike, Y. Sekino
{"title":"PWM DC-DC converter with a resonant commutation means","authors":"S. Atoh, H. Yoshike, Y. Sekino","doi":"10.1109/INTLEC.1991.172414","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172414","url":null,"abstract":"The proposed converter is a hybrid converter consisting of a pulsewidth modulation (PWM) DC-DC power converter and a set of current mode resonant circuits including a control switch. The power conversion is achieved by a PWM control scheme, and zero current switching is realized by the assistance of a current mode resonant technique. This converter has the easy control characteristics of PWM and the low switching loss of resonant-type converters. The experimental results of a prototype converter with 200 V, 5 kW output show benefits such as a high efficiency of 95%, stable operation, and low noise characteristics.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115863650","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
Development of prismatic sealed nickel-cadmium battery, '2400PF' “2400PF”柱状密封镍镉电池的研制
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172420
T. Harada, K. Arahi, H. Yufu
{"title":"Development of prismatic sealed nickel-cadmium battery, '2400PF'","authors":"T. Harada, K. Arahi, H. Yufu","doi":"10.1109/INTLEC.1991.172420","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172420","url":null,"abstract":"The authors introduce the prismatic sealed nickel-cadmium battery 2400PF, which has the same thickness as the diameter of an AA size cylindrical Ni-Cd battery and has a volumetric energy density about 40% higher than that of the conventional Ni-Cd battery. The 2400PF was designed to avoid electrolyte leakage and significant deformation of the battery can. It has better discharge characteristics at a high rate at a lower temperature than the conventional prismatic sealed Ni-Cd battery.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130425956","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
Novel technique for improved power conversion efficiency in PV systems with battery back-up 提高蓄电池备用光伏系统功率转换效率的新技术
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172378
D. B. Snyman, J. Enslin
{"title":"Novel technique for improved power conversion efficiency in PV systems with battery back-up","authors":"D. B. Snyman, J. Enslin","doi":"10.1109/INTLEC.1991.172378","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172378","url":null,"abstract":"A novel technique for the improvement of power conversion efficiencies in photovoltaic (PV) systems with battery back-up is presented and analyzed, and applications for this parallel power conversion technique (PPCT) are suggested. The PPCT may increase the available energy in an existing PV system, using a polarity changing maximum power point tracker (MPPT), or a split battery system, without adding anything to the PV system. This is accomplished by rewiring the PV system, utilizing the PPCT. The PPCT may also be used to reduce the power rating of the PV array in new PV systems with battery back-up. This PPCT is also illustrated in a compound converter and a new topology for a MPPT is described. Experimental results using this PPCT are presented.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130620687","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: 12
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