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APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition最新文献

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Integrated AC/DC converter with high power factor 集成AC/DC转换器，高功率因数
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.647726
S. Korotkov, V. Meleshin, R. Miftakhutdinov, A. Nemchinov, S. Fraidlin
{"title":"Integrated AC/DC converter with high power factor","authors":"S. Korotkov, V. Meleshin, R. Miftakhutdinov, A. Nemchinov, S. Fraidlin","doi":"10.1109/APEC.1998.647726","DOIUrl":"https://doi.org/10.1109/APEC.1998.647726","url":null,"abstract":"A new AC/DC power converter with high power factor is presented. This power converter has the advantages over both standard two-stage power factor corrected AC/DC power converters and single stage PFC power converters. These advantages are the overall simplicity of the power train, an optimised steady DC voltage maintained across the DC cell, constant operating frequency, inherent inrush current limiting capability, high efficiency due to the chosen topology's inherent ZVT capability and simple and inexpensive control circuits. The principle of operation is discussed and the design procedure for the power mesh is proposed. The small-signal model of the PFC cell is included.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125052129","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 500 W (50 V@10 A) ZVT forward converter 一个500w (50 V@10 A) ZVT正激变换器
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653963
V. Grigore, J. Kyyra
{"title":"A 500 W (50 V@10 A) ZVT forward converter","authors":"V. Grigore, J. Kyyra","doi":"10.1109/APEC.1998.653963","DOIUrl":"https://doi.org/10.1109/APEC.1998.653963","url":null,"abstract":"In this paper a 500 W (50 V@10 A) forward converter is presented, which is part of a battery charger. An auxiliary resonant circuit was added to the basic forward converter, implementing the zero-voltage-transition (ZVT) technique for the main switch. The switch employed by the auxiliary circuit operates under zero-current-switching (ZCS) conditions. The overall efficiency improvement goes from about 2% at light load, to about 5% at full load.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128486769","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
Design of a series resonant converter with clamped capacitor voltage and anti-cross-conduction inductors 具有箝位电容电压和抗交叉导电感的串联谐振变换器的设计
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653994
B. Jacobson, R. DiPerna
{"title":"Design of a series resonant converter with clamped capacitor voltage and anti-cross-conduction inductors","authors":"B. Jacobson, R. DiPerna","doi":"10.1109/APEC.1998.653994","DOIUrl":"https://doi.org/10.1109/APEC.1998.653994","url":null,"abstract":"This paper describes a technique for overcoming the harmful influence of high-voltage transformer capacitance on a series resonant power converter. This circuit prevents cross-conduction and allows zero-voltage switching for a power converter operating at a fixed frequency. Measured data for a 8 kV, 300 kHz unit are presented.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"36 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129958762","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
Self-tuning control of switched reluctance motors for optimized torque per ampere at all operating points 开关磁阻电机的自调谐控制，在所有工作点优化每安培转矩
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653986
B. Fahimi, G. Suresh, J.P. Johnson, M. Ehsani, M. Arefeen, I. Panahi
{"title":"Self-tuning control of switched reluctance motors for optimized torque per ampere at all operating points","authors":"B. Fahimi, G. Suresh, J.P. Johnson, M. Ehsani, M. Arefeen, I. Panahi","doi":"10.1109/APEC.1998.653986","DOIUrl":"https://doi.org/10.1109/APEC.1998.653986","url":null,"abstract":"Online self-tuning of control angles of a switched reluctance motor (SRM) is essential to optimize its performance in the presence of manufacturing imperfections. This paper reports an adaptive control scheme to optimize the torque per ampere at low and high speeds using artificial neural networks (ANN). An heuristic optimization technique has been introduced to find the changes in control angles. Using these results, the ANN will update its synaptic weights. Computer simulation has been employed to show the feasibility of this approach. Experimental results are provided to demonstrate the working of the self-tuning control.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130786296","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: 25
Performance limitations of random current-sharing parallel-connected converter systems and their solution 随机共流并联变换器系统的性能限制及其解决方法
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653999
K. Siri, C. Truong
{"title":"Performance limitations of random current-sharing parallel-connected converter systems and their solution","authors":"K. Siri, C. Truong","doi":"10.1109/APEC.1998.653999","DOIUrl":"https://doi.org/10.1109/APEC.1998.653999","url":null,"abstract":"A study of a random current-sharing power converter system is presented. The system is comprised of many DC/DC power converters connected in parallel. Each power converter has its own single control loop operating in either the voltage regulation or current-limiting mode. Performance limitations are discovered through system simulation. Nonuniform current sharing occurs despite voltage droop characteristics that facilitate near-uniform current distribution. Due to random mismatches in component values, uneven current sharing among power converters exists. This causes system performance characteristics to exhibit large variations and system current sharing is found to be far from uniform, resulting in poor system reliability. The achievement of near-uniform current distribution, stiff system output voltage and the reduction of the output impedance variances are also discussed.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130985753","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: 20
Power processing issues in modern disk drives 现代磁盘驱动器中的电源处理问题
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.654004
W. A. Taylor
{"title":"Power processing issues in modern disk drives","authors":"W. A. Taylor","doi":"10.1109/APEC.1998.654004","DOIUrl":"https://doi.org/10.1109/APEC.1998.654004","url":null,"abstract":"Power processing technology has traditionally played a relatively small role in hard disk drive design due to a lack of necessity, and concern over electromagnetic interference with sensitive drive electronics. As data-access speeds increase, more efficient means of controlling spindle and actuator motors are required. An overview of power-related issues in disk drives is presented, and some of the ways that power processing technology can help in improving performance and power efficiency are discussed.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132972518","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
Current sharing of redundant synchronous buck regulators powering high performance microprocessors using the V/sup 2/ control method 使用V/sup 2/控制方法为高性能微处理器供电的冗余同步降压稳压器的电流共享
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653998
G. Schuellein
{"title":"Current sharing of redundant synchronous buck regulators powering high performance microprocessors using the V/sup 2/ control method","authors":"G. Schuellein","doi":"10.1109/APEC.1998.653998","DOIUrl":"https://doi.org/10.1109/APEC.1998.653998","url":null,"abstract":"Powering the latest microprocessor systems requiring supply voltages of 2 V or less and step loads in excess of 50 A has provided a challenge to the power supply system designer. Redundant, current sharing synchronous buck regulators are an attractive solution to meet the constraints of cost, efficiency and reliability. This paper describes a simple approach based on droop sharing and the V/sup 2/ control method.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"14 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132974374","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: 33
A new packaging scheme for high current sealed power supplies 一种新的大电流密封电源封装方案
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.647737
N. Kutkut, J. Wohlbier, R. Gascoigne, D. Divan
{"title":"A new packaging scheme for high current sealed power supplies","authors":"N. Kutkut, J. Wohlbier, R. Gascoigne, D. Divan","doi":"10.1109/APEC.1998.647737","DOIUrl":"https://doi.org/10.1109/APEC.1998.647737","url":null,"abstract":"This paper presents a new packaging scheme that improves the thermal capability of sealed power electronic apparatus and systems subjected to high ambient temperatures and corrosive environments. The proposed packaging scheme consists of two enclosed compartments that are sealed off from the outside ambient atmosphere and from each other. Heat generating power circuit components, such as switching devices, transformers and inductors, are housed within one of the compartments, and lower power dissipation control circuitry, such as control ICs, are housed within the other compartment. The power circuit components are mounted to a heat sink that transfers the heat generated by these components to the outside atmosphere. An open compartment is formed between the two sealed compartments where sealed electronic components, such as electrolytic capacitors, can be mounted, thus enhancing their thermal performance.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126854259","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
Reduced switching stress in high-voltage IGBT inverters via a three-level structure 通过三电平结构降低高压IGBT逆变器的开关应力
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.653944
W. Brumsickle, D. Divan, T. Lipo
{"title":"Reduced switching stress in high-voltage IGBT inverters via a three-level structure","authors":"W. Brumsickle, D. Divan, T. Lipo","doi":"10.1109/APEC.1998.653944","DOIUrl":"https://doi.org/10.1109/APEC.1998.653944","url":null,"abstract":"High voltage (3.3-4.5 kV) insulated gate bipolar transistors (HVIGBTs) are limited in SOA and ability to be effectively used in hard switched 2-level PWM inverters. The proposed operation sequence for the well known 3-level inverter allows use of HVIGBTs at near-rated voltage while cutting switching loss in half and allowing 3-level PWM for improved harmonics spectrum. Simulation and laboratory results prove the concept.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116619496","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: 26
Passive lossless snubbers for DC/DC converters 用于DC/DC转换器的无源无损缓冲器
APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition Pub Date : 1998-02-15 DOI: 10.1109/APEC.1998.654027
Ching-Jung Tseng, Chern-Lin Chen
{"title":"Passive lossless snubbers for DC/DC converters","authors":"Ching-Jung Tseng, Chern-Lin Chen","doi":"10.1109/APEC.1998.654027","DOIUrl":"https://doi.org/10.1109/APEC.1998.654027","url":null,"abstract":"Passive lossless snubbers are proposed to improve the turn-on and turn-off transients of the MOSFETs in PWM DC/DC power converters. Switching losses and EMI noises are reduced by restricting the di/dt of the reverse recovery current and the dv/dt of the drain-source voltage. The MOSFET operates at ZVS turn-off and near ZCS turn-on. The freewheeling diode is also commutated with ZVS. As a demonstration, operation principles, theoretical analyses, relevant equations and experimental results of a boost power converter equipped with the proposed snubber are presented in detail. An efficiency of 96% has also been measured in the experimental results reported for a 1 kW, 100 kHz prototype in the laboratory. Six basic nonisolated PWM DC/DC power converters (buck, boost, buck-boost, Cuk, Sepic and Zeta) equipped with the proposed passive lossless snubbers are also shown in this paper.","PeriodicalId":156715,"journal":{"name":"APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121853422","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: 81
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