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2009 Brazilian Power Electronics Conference最新文献

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Implementation of a stand-alone photovoltaic system based on decentralized dc-dc converters 基于分散式dc-dc转换器的独立光伏系统的实现
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347637
D. B. Cândido, J. Zientarski, R. Beltrame, J. R. Pinheiro, H. Hey
{"title":"Implementation of a stand-alone photovoltaic system based on decentralized dc-dc converters","authors":"D. B. Cândido, J. Zientarski, R. Beltrame, J. R. Pinheiro, H. Hey","doi":"10.1109/COBEP.2009.5347637","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347637","url":null,"abstract":"This paper presents an alternative for standalone PV systems that performs a decentralized input energy processing with maximum power point tracking and a bidirectional converter to manage the power flux control of the battery bank. Previous works demonstrate that the gain in efficiency can reach up to 16% in situations where one or more photovoltaic panels are shaded, damaged or aged. Simulation analyses and experimental results are provided to demonstrate the prospects of the proposed system.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115761595","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: 14
Proposal of a 5kVA single-phase on-line UPS with high frequency isolation and power factor correction 具有高频隔离和功率因数校正功能的5kVA单相在线UPS的设计
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347694
R. Bascopé, C. Branco, C. Cruz, E. F. de Oliveira, G. Sousa
{"title":"Proposal of a 5kVA single-phase on-line UPS with high frequency isolation and power factor correction","authors":"R. Bascopé, C. Branco, C. Cruz, E. F. de Oliveira, G. Sousa","doi":"10.1109/COBEP.2009.5347694","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347694","url":null,"abstract":"A high performance isolated double conversion uninterruptible power supply (UPS) with power factor correction using a high frequency transformer, and input voltages equal to 110 V/220 V is proposed. The arrangement is suitable to rack type structures because it has small size and reduced weight. For both input voltages, the proposed converter has almost the same efficiency processing the same output power. Other relevant features are soft commutation of the controlled switches in the chopper and the boost stage, simple control strategy that can be implemented with well-known integrated circuits, and the use of few batteries in series due to the step-up stage. Qualitative analysis and experimental results obtained for a 5 kVA prototype show a normal efficiency of over 87% for the worst case of input voltage and an input power factor of over 99%.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123716616","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
Novel zero current turn-on and turn-off commutation cell 新型零电流通断整流电池
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347733
E. C. Dias, L. Freitas, V. J. Farias, E. Coelho, J. B. Vieira, L. D. de Freitas
{"title":"Novel zero current turn-on and turn-off commutation cell","authors":"E. C. Dias, L. Freitas, V. J. Farias, E. Coelho, J. B. Vieira, L. D. de Freitas","doi":"10.1109/COBEP.2009.5347733","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347733","url":null,"abstract":"This paper presents a novel soft-commutation cell capable of providing ZCS operation keeping the main switch current equal to the load current. The operation and main properties of this cell are also included. A theoretical approach for the design of the proposed cell applied to a DC-DC Buck converter is presented and corroborated by simulation and experimental results of an 800W laboratory prototype.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124744384","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
Proposal of a AC/DC converter with unitary power factor for a thermal plasma torch system 热等离子体炬系统中统一功率因数AC/DC变换器的设计
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347653
M.V.M. de Aguiar, P. Luciano, A. Salazar, J. Dubut
{"title":"Proposal of a AC/DC converter with unitary power factor for a thermal plasma torch system","authors":"M.V.M. de Aguiar, P. Luciano, A. Salazar, J. Dubut","doi":"10.1109/COBEP.2009.5347653","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347653","url":null,"abstract":"This paper describes the project development and the construction of a 50 kW AC/DC PWM power supply with power factor correction for use with plasma inertization plant. The main power circuitry is built on a industrial IGBT's three-phase bridge rectifier module configured in a boost regulator topology and supplies by means of an electronic chopper, the 850 Vdc link. To attend the Brazilian electrical standard with regard to power factor and harmonic current injection in the electrical line, this power supply is provided of a power factor correction using a space-vector PWM. All the control was implemented in a TMS320LF2812A Evaluation Module (EVM). A remote PC microcomputer using a man-machine interface was connected to the DSP in order to supervise the parameters of the system.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785476","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
A discrete time domain controller design to a Three-Phase Step-UP DC-DC converter with a three-phase high frequency transformer 带三相高频变压器的三相升压DC-DC变换器的离散时域控制器设计
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347736
J. Strutz, A. Péres, S. Oliveira
{"title":"A discrete time domain controller design to a Three-Phase Step-UP DC-DC converter with a three-phase high frequency transformer","authors":"J. Strutz, A. Péres, S. Oliveira","doi":"10.1109/COBEP.2009.5347736","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347736","url":null,"abstract":"This paper presents a discrete controller design approach applied in a three-phase step-up DC-DC converter with isolated high frequency transformer. In addition it presents the topology and the step up converter working at region R2. The compensators at the continuous and discrete time domain are designed based on the root locus method. In the same way by means of simulation results, this work presents a comparative analysis with the both domains design to the current and voltage loops. The experimental implementation of the discrete controller using the DSC 56F8323 is under development.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"1615 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129225677","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
Double conversion uninterrupted power system with integration of the rectifier and the inverter 整流器和逆变器相结合的双转换不间断电力系统
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347746
F. Linard, G. Henn, C. Cruz, R. Bascopé, D. Oliveira
{"title":"Double conversion uninterrupted power system with integration of the rectifier and the inverter","authors":"F. Linard, G. Henn, C. Cruz, R. Bascopé, D. Oliveira","doi":"10.1109/COBEP.2009.5347746","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347746","url":null,"abstract":"This paper presents a novel topology for double conversion uninterrupted power supply (UPS). The most important characteristics of this converter are: low cost, low conduction and commutation losses on all the controlled switches, the control is implemented with commercial integrated circuits, and the rectifier and the inverter are on the same circuit. Theoretical analysis, operation principle, and topology details are presented and validated through experimental results.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128706137","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
Voltage regulation and balance dynamic control in 15 kV — Electric distribution networks 15kv配电网电压调节与平衡动态控制
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347743
Carlos Jardim Sena, G. Sousa
{"title":"Voltage regulation and balance dynamic control in 15 kV — Electric distribution networks","authors":"Carlos Jardim Sena, G. Sousa","doi":"10.1109/COBEP.2009.5347743","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347743","url":null,"abstract":"This work presents an analysis of a distribution static compensator (DSTATCOM) as a substitute or a complement to the classical voltage regulation and balancing techniques, highlighting each alternative characteristic, advantages and disadvantages, considering the parameters of an actual 13.8 kV distribution circuit. These studies were performed focusing on a utility company investment alternatives among the technical solutions available to mitigate, avoid or postpone expenses, in order to comply with the legal principle of a prudent and necessary investment to reach the lowest possible energy tariff.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122266048","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
A modular power electronics protoboard for didactic applications 用于教学应用的模块化电力电子原型板
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347665
F. Padilha, W. Suemitsu, L. Rolim, G. Sotelo
{"title":"A modular power electronics protoboard for didactic applications","authors":"F. Padilha, W. Suemitsu, L. Rolim, G. Sotelo","doi":"10.1109/COBEP.2009.5347665","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347665","url":null,"abstract":"Over ten years ago, the first laboratory course on Power Electronics was introduced in the Federal University of Rio de Janeiro (UFRJ). The course was conceived in conjunction with the development of a small, but consistent set of modules, which have been designed with the aim of making it easier to implement many different converter functions. After a decade of successful use, this conception has been proving so far to be very effective and versatile, that it motivated the effort for updating and improving the initial testbed. Undergraduate and graduated students have developed a variety of experiments using these modules. The whole material has evolved to a tool for interdisciplinary work on many subjects, such as: power electronics, electrical motor drives and digital control. An overview of ways to use this teaching tool is presented in this paper, along with a discussion about perspectives for the next years.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126593691","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
Non-linear controller applied to boost DC-DC converters using the state space average model 利用状态空间平均模型将非线性控制器应用于升压DC-DC变换器
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347613
L. Galotto, C. Canesin, Raimundo Cordero, Cristiano A. Quevedo, Rubenz Gazineu
{"title":"Non-linear controller applied to boost DC-DC converters using the state space average model","authors":"L. Galotto, C. Canesin, Raimundo Cordero, Cristiano A. Quevedo, Rubenz Gazineu","doi":"10.1109/COBEP.2009.5347613","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347613","url":null,"abstract":"This work aims to present a methodology to use the large signal state space average model of the DC-DC converters for high performance controllers design. The design using classic control theories need the SISO transfer function. Often, these functions are obtained using linearization around the point of operation. It reduces the range of operation to the designed controller with the expected performance. Also, the presented controller showed to have high disturbance rejection dependent on the sensors used. The presented controller is described, simulated and experimentally confirmed.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126929552","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
Double-coupled current-fed push-pull DC/DC converter: Analysis and experimentation 双耦合电流馈电推挽DC/DC变换器:分析与实验
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347708
H. Larico, I. Barbi
{"title":"Double-coupled current-fed push-pull DC/DC converter: Analysis and experimentation","authors":"H. Larico, I. Barbi","doi":"10.1109/COBEP.2009.5347708","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347708","url":null,"abstract":"This paper presents the double-coupled current-fed push-pull dc/dc converter which operates from 0 to 100% of duty cycle. One primary winding in the transformer, low rms current in the output capacitor, double switching frequency in the input and the output filter, null ripple current in the input and in the output for 50% of duty cycle, are some characteristics of this new topology. These allow reductions of size and weight of the components. Qualitative and quantitative analysis are presented, in which the simplified model of the inductor coupled and the ideal model of the transformer are used. Finally, experimental results of a prototype are shown for the converter operating with a duty cycle higher or lower than 50%. The possible applications of this topology are automotive, electric power generation such as fuel cells, solar and wind.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127243568","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
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