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Interactive DC-DC converters tools for instant design and education 交互式DC-DC转换器工具，用于即时设计和教育
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347725
F.A.S. Gonalves, L. P. Sampaio, C. A. Canesin
{"title":"Interactive DC-DC converters tools for instant design and education","authors":"F.A.S. Gonalves, L. P. Sampaio, C. A. Canesin","doi":"10.1109/COBEP.2009.5347725","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347725","url":null,"abstract":"This paper deals with the usage of interactive simulations tools to serve as an oriented design tool for the lectures and laboratory experiments in the power electronics courses. A dynamic and interactive visualization of simulations for idealized converters in steady state are provided by the proposed educational tools, allowing students to acquire qualification in non-isolated DC-DC converters, without previous circuitry knowledge, either without the usage of sophisticated simulation packages. The interaction with proposed simulation tools can be accomplished by student using direct or graphic mode. In direct mode the parameters related with the design of converter can be inserted simply editing default values presented in text boxes, while in the graphic mode students interact indirectly with design information by manipulating visual widgets. In order to corroborate the proposed interactive simulation tools, comparisons of results from buck-boost and boost converters on proposed tools and a well-known simulator package with those on experimental evaluation from laboratory classes were presented.","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":"133660805","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
Indirect matrix converter for AC induction motor drives 用于交流感应电动机驱动的间接矩阵变换器
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347628
A. Bottenberg, A. Péres, S. Oliveira
{"title":"Indirect matrix converter for AC induction motor drives","authors":"A. Bottenberg, A. Péres, S. Oliveira","doi":"10.1109/COBEP.2009.5347628","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347628","url":null,"abstract":"A matrix converter to directly connect a three-phase load to a three-phase power source using eighteen IGBTs and eighteen fast diodes is presented in this paper. The IGBTs are connected in a common-emitter (CE) configuration by versatile blocks, able to be used in other topologies such as sparse matrix converters and conventional matrix converters. The matrix converter allows many advantages compared to the conventional voltage or current source inverters. It does not require energy storage components as a bulky capacitor or an inductance in the DC-link and enables the bidirectional power flow between the power supply and load. The indirect modulation technique is adopted, since a dc-link without capacitive elements is established. The modulation technique adopted is able to provide practically sinusoidal waveforms of the input and output currents with negligible harmonics amplitude, with input displacement factor control. Some design and implementation details of a 1 kW three-phase to three-phase, as well, a complete theoretical description with simulation results of the design implementation are offered.","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":"132788506","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
Theoretical analysis of a single-phase three-level PFC converter employing multi-state switching cells 采用多态开关单元的单相三电平PFC变换器的理论分析
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347678
M. Ortmann, S. A. Mussa, M. Heldwein
{"title":"Theoretical analysis of a single-phase three-level PFC converter employing multi-state switching cells","authors":"M. Ortmann, S. A. Mussa, M. Heldwein","doi":"10.1109/COBEP.2009.5347678","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347678","url":null,"abstract":"The single-phase three-level PFC rectifier employing multi-state switching cells is modeled regarding different operational aspects. The generalization of the number of switching states is performed in order to clarify issues such as the input current ripple, the output currents RMS values, semiconductor efforts and others. A discussion on the optimal number of switching states is carried out, based on the generated models. In this context, this work is a first step aiming in the efficiency based optimization of the concept.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"36 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":"127140015","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
Generated voltage control of the SRM operating as motor/generator SRM作为电机/发电机运行时的电压控制
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347764
A. Silveira, D. Andrade, A. Fleury, L. Gomes, C. Bissochi, R. J. Días
{"title":"Generated voltage control of the SRM operating as motor/generator","authors":"A. Silveira, D. Andrade, A. Fleury, L. Gomes, C. Bissochi, R. J. Días","doi":"10.1109/COBEP.2009.5347764","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347764","url":null,"abstract":"This article treats the switched reluctance motor/generator drive for general purpose. A typical half-bridge converter topology is used to attain the motor operation mode. Although, the converter topology is strategically modified to make possible the generator operation mode. It is achieved automatically through a relay and so the phase demagnetization generates power to the load. Also the switching angles control must be simultaneously provided. Three techniques are proposed here to control the load voltage when the machine is operating as a generator. All of them exert control on the machine magnetization level. Some simulated results are presented here to show that the proposed techniques are capable of been dealt with successfully. It is showing the applicability of the switched reluctance machine as a motor/generator device.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"15 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":"127365196","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
Compact emergency lamp 小型应急灯
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347622
R. A. Pinto, M. Cosetin, A. Campos, R. N. Prado
{"title":"Compact emergency lamp","authors":"R. A. Pinto, M. Cosetin, A. Campos, R. N. Prado","doi":"10.1109/COBEP.2009.5347622","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347622","url":null,"abstract":"This paper presents a compact emergency lamp using light emitting diodes (LEDs). The goal is to develop a compact and low cost electronic circuit to drive and control the current of LEDs arranged in a single enclosure. The proposed idea allows using the same equipment in the daily activities, supplied by mains, and under a possible failure of it. The proposal aims energy saving, high luminous efficacy and high useful life when replacing traditional emergency lighting systems, using fluorescent lamps by LEDs. The use of E-27 socket (the same used in traditional incandescent lamps), provides the advantage of easy installation, with the simple replacement of the lamp without any change in the electrical installation. To supply the LEDs by mains and by battery a Buck and a Boost converter were employed. The converters work without electrolytic capacitors which has advantages such as reducing of size and cost of the circuit and increasing the driver's useful life. The battery can be composed of three rechargeable Ni-MH batteries (1.2 V) or a Li-Ion battery (3.6 V). The design complies with the Brazilian standard and international standard for emergency lighting systems. The complete circuit was implemented and the experimental results show a satisfactory behavior of the lamp.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"14 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":"127713781","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
A soft-switching universal-input voltage HPF rectifier implemented with a modified sepic converter 一种采用改进型专用变换器实现的软开关通用输入高压整流器
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347768
P. F. de Melo, R. Gules, E. Romaneli, R. C. Annunziato
{"title":"A soft-switching universal-input voltage HPF rectifier implemented with a modified sepic converter","authors":"P. F. de Melo, R. Gules, E. Romaneli, R. C. Annunziato","doi":"10.1109/COBEP.2009.5347768","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347768","url":null,"abstract":"A high-power-factor rectifier suitable for universal-line base on a modified version of the SEPIC converter is presented in this paper. The voltage multiplier technique is applied to the classical SEPIC circuit obtaining new operation characteristics as low switch voltage operation and high static gain at low line voltage. The new configuration also allows the reduction of the losses associated to the diode reverse recovery current and soft-commutation is obtained with a simple regenerative snubber circuit. The operation analysis, design procedure and experimental results obtained from a 650W universal-line high power factor prototype of the proposed converter are presented. The theoretical analysis and experimental results obtained with the proposed structure are compared with the classical boost topology.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"34 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":"129426325","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
Power transference to AC voltage sources 电源传输到交流电压源
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347760
A. de A. Lorencato, A. S. Martins, G. Bonan
{"title":"Power transference to AC voltage sources","authors":"A. de A. Lorencato, A. S. Martins, G. Bonan","doi":"10.1109/COBEP.2009.5347760","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347760","url":null,"abstract":"This paper presents a simple approach of a topology already known in the literature, applied in active power transference from DC source to any AC voltage source, whether the utility power or a voltage inverter that is forming an isolated AC grid. Simulation results of this application are presented and experimental results validate this topology.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"9 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":"121262501","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
Mitigation of harmonic distortion by power electronic interface connecting distributed generation sources to a weak grid 利用电力电子接口将分布式电源与弱电网连接以减轻谐波畸变
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347604
R. M. Moreno, J. Pomilio, L. C. P. da Silva, S. P. Pimentel
{"title":"Mitigation of harmonic distortion by power electronic interface connecting distributed generation sources to a weak grid","authors":"R. M. Moreno, J. Pomilio, L. C. P. da Silva, S. P. Pimentel","doi":"10.1109/COBEP.2009.5347604","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347604","url":null,"abstract":"In this paper a Power Electronic Interface (PEI) that integrates up to two renewable energy sources is presented. The generation of the different distributed sources is controlled through the DC link terminal voltage and the AC terminal voltage of the voltage source converter (VSC). The renewable source can be controlled to supply electricity to the local load and export the exceeding energy to the grid. The system is analyzed under distorted grid voltage, where the quality of the grid current is affected. Solutions based on resonant passive filters and on the injection of harmonics to compensate the voltage grid distortion are presented.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"45 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":"122518687","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: 7
Digital control system applied to a PFC boost converter operating in mixed conduction mode 数字控制系统应用于PFC升压变换器工作在混合导通模式
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347724
L. Roggia, F. Beltrame, J. E. Baggio, J. R. Pinheiro
{"title":"Digital control system applied to a PFC boost converter operating in mixed conduction mode","authors":"L. Roggia, F. Beltrame, J. E. Baggio, J. R. Pinheiro","doi":"10.1109/COBEP.2009.5347724","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347724","url":null,"abstract":"This paper proposes a digital control system applied to a power factor correction boost converter rated to a wide range of output power, operating in mixed conduction mode with fixed switching frequency. The control system is composed of an input current controller and an output voltage controller. The current controller comprises two predictive model-based control laws (one for the continuous conduction mode and another for the discontinuous conduction mode) and an operation mode selection algorithm, which is responsible for detecting the operation mode and selecting the appropriate control law. The output voltage is regulated using a proportional-integral voltage controller. Simulation and experimental results applying a low cost microcontroller are shown to ensure the operation of the proposed control system.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"11 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":"115987902","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: 29
Control strategy for the rotor side converter of a DFIG-WT under balanced voltage sag 平衡电压跌落下DFIG-WT转子侧变换器的控制策略
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347615
K. Lima, A. Luna, E. Watanabe, P. Rodríguez
{"title":"Control strategy for the rotor side converter of a DFIG-WT under balanced voltage sag","authors":"K. Lima, A. Luna, E. Watanabe, P. Rodríguez","doi":"10.1109/COBEP.2009.5347615","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347615","url":null,"abstract":"This paper proposes a new control technique to improve the fault-ride through capability of doubly fed induction generators (DFIG). In such generators the appearance of severe voltage sags at the coupling point make rise to high over currents at the rotor/stator windings, something that makes necessary to protect the machine as well as the rotor side power converter. As a difference with the most extended solution, that reduces these currents by means of the connection of a crowbar circuit, this works intends to enhance the DFIGs response in such conditions without introducing extra hardware in the system. To this end, the proposed control system feedback the stator currents as the rotor current reference during the fault, until they are driven to their nominal values. The feasibility of this proposal has been proven by means of mathematical and simulation models, based on PSCAD/EMTDC, as well as experimental results from a prototype of 6 kW rated power.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"117 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":"131499680","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
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