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

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Analysis of a full-bridge parallel resonant converter 全桥并联谐振变换器的分析
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172413
J. Tanaka, I. Yuzurihara, T. Watanabe
{"title":"Analysis of a full-bridge parallel resonant converter","authors":"J. Tanaka, I. Yuzurihara, T. Watanabe","doi":"10.1109/INTLEC.1991.172413","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172413","url":null,"abstract":"A full-bridge parallel resonant converter (PRC) is analyzed as a practical circuit, including the transformer leakage inductance. The full-bridge PRC is analyzed for the discontinuous conduction mode of operation. The authors illustrate the worst case of resonant currents. Resonant currents are affected by another resonant condition consisting of the leakage inductance and the resonant capacitor. The experimental results obtained for a full-bridge PRC were consistent with predicted values. A switching power supply (48 V, 50 A) for communication equipment and a large power converter (750 V, 20 A) for industrial use were developed, and a high efficiency of 94% was obtained.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"4 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":"115199468","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
Monitoring of stationary valve regulated lead acid batteries 固定式阀控铅酸蓄电池的监测
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172394
D. Berndt, E. Meißner, F. Kruger, R. Luetkehoelter
{"title":"Monitoring of stationary valve regulated lead acid batteries","authors":"D. Berndt, E. Meißner, F. Kruger, R. Luetkehoelter","doi":"10.1109/INTLEC.1991.172394","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172394","url":null,"abstract":"Ensuring the reliability and safety of uninterruptible power supply (UPS) devices requires continuous monitoring of the battery conditions. A system is described that records and analyzes all relevant battery parameters, such as conditions of float charge, discharge voltage, ripple current, and battery temperature. The system consists mainly of a microprocessor-controlled data-acquisition unit with specially developed software. Functions and hardware of the system are described.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"14 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":"115357327","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
Capacitors in telecommunication systems power conversion: a 100 W high frequency DC-DC converter without wet electrolytic capacitor 通信系统电源转换用电容器:一种100w高频DC-DC变换器，无湿电解电容器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172469
D. Jugan, A. Pann, D. Sadarnac, S. D'almeida, M. Perelle, M. Rocher
{"title":"Capacitors in telecommunication systems power conversion: a 100 W high frequency DC-DC converter without wet electrolytic capacitor","authors":"D. Jugan, A. Pann, D. Sadarnac, S. D'almeida, M. Perelle, M. Rocher","doi":"10.1109/INTLEC.1991.172469","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172469","url":null,"abstract":"The technical feasibility of a converter without a wet electrolytic capacitor is demonstrated. The authors set out the actions undertaken to ensure that chemical capacitors in DC-DC converters are correctly used. They give the progression of study and realization, on the basis of a defined specification, of a 100 W high-frequency DC-DC converter, designed without a wet electrolytic capacitor. The different structures of resonant converters are analyzed to accept a forward zero voltage switching multiresonance converter working in a variable frequency between 800 kHz and 1.2 MHz. This converter allows and imposes the use of capacitors whose characteristics are described.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"10 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":"122806207","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 microcomputer-based battery management system 基于微机的电池管理系统
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172393
Z. Noworolski, Eric Praetzel
{"title":"A microcomputer-based battery management system","authors":"Z. Noworolski, Eric Praetzel","doi":"10.1109/INTLEC.1991.172393","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172393","url":null,"abstract":"An automatic battery monitoring system that uses a microcomputer is presented. Considerations for cost and maintenance reduction in telecommunications and other applications are discussed. The monitoring system was designed to help minimize the uninterruptible power supply (UPS) battery maintenance cost by detecting cell and interconnection failures before they compromise system performance.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 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":"129256019","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
Transient analysis of forward multi-resonant converter using EISCAP 正激多谐振变换器的暂态分析
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172437
K. Yoshida
{"title":"Transient analysis of forward multi-resonant converter using EISCAP","authors":"K. Yoshida","doi":"10.1109/INTLEC.1991.172437","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172437","url":null,"abstract":"A circuit simulator, EISCAP, is introduced for the efficient development and design of switching circuits. The transient state of a forward multiresonant power converter was simulated by EISCAP. The magnetizing current of the transformer has a great effect on the converter operation. The most interesting effect was that peak voltage across the main switch increased for the transient state. The peak voltage across the main switch was changed by the pulse frequency modulation (PFM) control method of the main switch. The relation between the stress of the main switch and the PFM control method of the switch in the transient state was revealed.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"2 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":"122282976","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
ZVS PWM modificated bridge converter utilizing partial resonance 利用部分谐振的ZVS PWM修改桥式变换器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172459
I. Norigoe, Y. Uchiyama, T. Kohuchi
{"title":"ZVS PWM modificated bridge converter utilizing partial resonance","authors":"I. Norigoe, Y. Uchiyama, T. Kohuchi","doi":"10.1109/INTLEC.1991.172459","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172459","url":null,"abstract":"Operations and evaluation results of a modified bridge power converter utilizing the concept of the partial resonant converter provided with ZVS (zero voltage switching) by voltage resonance and nonresonant PWM (pulsewidth-modulated) control are reported. The bridge converter showed very efficient and stable operations over a wide range of input voltages with a low switching loss and noise equivalent to or lower than resonant converters.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 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":"130149204","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
Characteristics of a high-frequency link resonant inverter 高频链路谐振逆变器的特性
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172452
T. Aoki, Y. Nozaki, T. Koyashiki, Y. Kuwata
{"title":"Characteristics of a high-frequency link resonant inverter","authors":"T. Aoki, Y. Nozaki, T. Koyashiki, Y. Kuwata","doi":"10.1109/INTLEC.1991.172452","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172452","url":null,"abstract":"The authors describe the configuration and operation of a high frequency link resonant inverter. In this inverter, a resonant link high frequency voltage generated in a primary resonant inverter is isolated by a high frequency transformer, then directly converted into a resonant link low-frequency voltage by a cycloconverter. The switching losses and surge voltage levels can be reduced by making all switches in the primary inverter and the cycloconverter operate at zero voltage. The relationship between the characteristic impedance of the resonant circuit and the conversion efficiency, and the output voltage characteristics are discussed by comparing analytical and experimental results.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"10 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":"130959242","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
Experiments on thermal run-a-way and its management for electrolyte immobilized lead-acid batteries 电解液固定化铅酸电池热运行试验及管理
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172367
F. Vaccaro, R.E. Landwehrle
{"title":"Experiments on thermal run-a-way and its management for electrolyte immobilized lead-acid batteries","authors":"F. Vaccaro, R.E. Landwehrle","doi":"10.1109/INTLEC.1991.172367","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172367","url":null,"abstract":"The thermal characteristics of the AT&T VR electrolyte immobilized (EI) lead-acid battery have been evaluated from ambient temperatures to 158 degrees F and float voltages to 2.5 V/cell. The intent of this experimental program was to determine and evaluate the battery's thermal behavior in applications and configurations in which it is presently used. The test program included free-standing cells and a 48 V 375 Ah battery in a close packed cubical configuration. It was concluded that free-standing cells and cells closely packed in a cube configuration will not exhibit thermal runaway when floated at 2.27 V/cell and temperatures at or below 131 degrees F. The 48 V 375 Ah battery at 77 degrees F and potentials above 2.5 V/cell exhibits the symptoms of thermal runaway. When elevated temperature and voltage conditions are encountered it is recommended that the battery float voltage be temperature compensated. The recommended coefficient to temperature compensate float voltage is -3 mV/ degrees C. The derivation of this coefficient is given.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 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":"125830894","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
Static characteristics of the three level clamped quasi-resonant converter 三电平箝位准谐振变换器的静态特性
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172387
T. Sato, T. Higashi, T. Nakano, K. Harada
{"title":"Static characteristics of the three level clamped quasi-resonant converter","authors":"T. Sato, T. Higashi, T. Nakano, K. Harada","doi":"10.1109/INTLEC.1991.172387","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172387","url":null,"abstract":"A control method for resonant converters operating at fixed switching frequencies is presented, in which an active resonant switch (ARS) and a three-level clamp switch (TLCS) are used. The ARS is derived from the conventional resonant switches by adding an auxiliary switch in order to clamp the resonant inductor voltage at zero, and a TLCS is derived from the ARS by adding a secondary winding and a diode to the resonant inductor to reduce the voltage stresses of the switches. A steady state analysis is performed and confirmed by experiments for a buck quasi-resonant converter controlled by the ARS and the TLCS operating in the zero voltage switching mode.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"44 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":"127080452","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
Modern high-frequency inverter linked cycloconverter type sinewave power processing system using multi-resonant soft-switching PWM strategy 现代高频逆变链环变换器型正弦波功率处理系统采用多谐振软开关PWM策略
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172451
H. Yonemori, K. Muneto, M. Nakaoka, T. Maruhashi
{"title":"Modern high-frequency inverter linked cycloconverter type sinewave power processing system using multi-resonant soft-switching PWM strategy","authors":"H. Yonemori, K. Muneto, M. Nakaoka, T. Maruhashi","doi":"10.1109/INTLEC.1991.172451","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172451","url":null,"abstract":"The authors describe a newly improved sinewave CVCF power conversion conditioning and processing system (PCS) with an HF link, which incorporates a zero voltage switching (ZVS) mode phase-shifted modulation (PSM) HF inverter with the voltage clamped quasiresonant pole (QR-P) subcircuits. The subcircuits include lossless capacitive snubbers and an HF transformer-linked cycloconverter operating under the ZVS principle based on HF-voltage source and forced-gate commutation schemes. The PCS operation principle is described using the voltage and current waveforms. The ZVS PSM HF inverter stage with the voltage-clamped QR-P subcircuits is analyzed under the conditions of a load-dependent current source model together with its simulation results. The design approach is described from a theoretical point of view. The simulation results of the proposed inverter-cycloconverter cascade PCS with voltage clamped soft switching PWM strategy and instantaneous voltage feedback loop are illustrated and discussed, including the experimental results.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 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":"130790809","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
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