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A comparative study between two single-stage LED drivers: A sole converter versus an integrated topology 两个单级LED驱动器的比较研究:单一转换器与集成拓扑
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6453204
G. M. Soares, P. S. Almeida, D. P. Pinto, H. Braga
{"title":"A comparative study between two single-stage LED drivers: A sole converter versus an integrated topology","authors":"G. M. Soares, P. S. Almeida, D. P. Pinto, H. Braga","doi":"10.1109/INDUSCON.2012.6453204","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6453204","url":null,"abstract":"This work proposes a comparison between two different approaches for LED driving, based on the Ćuk converter operating in discontinuous conduction mode and an integrated SEPIC Buck-Boost converter. A brief analysis of each converter is carried out and a design methodology is presented, focused in reducing output filtering capacitance, still achieving acceptable current ripple on the output and eliminating the need for electrolytic capacitors. The LED photometric performance under different ripple conditions has been analyzed to aid the design methodology in order to optimize output current ripple selection and capacitor reduction. The control strategy for each converter was presented and validated experimentally. Experimental results were obtained for both converters from two prototypes feeding 56 series-associated high-power LEDs from 220 VAC-60 Hz mains.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131933134","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
Proposal for an AGV communication system using a cellbot framework 基于cellbot框架的AGV通信系统的设计
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6451395
D. M. Tavares, S. J. Bachega
{"title":"Proposal for an AGV communication system using a cellbot framework","authors":"D. M. Tavares, S. J. Bachega","doi":"10.1109/INDUSCON.2012.6451395","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6451395","url":null,"abstract":"Flexible Manufacturing Systems (FMS) are considered one of the key strategic systems when coping with current manufacturing environments. FMS uses various technologies integrated in a system, including Automated Guided Vehicles (AGVs). An AGV which serves an FMS environment usually has four components: the vehicles (uni or multiloaded), the load/deposit stations, the orientation and traffic control system and the communication system. In this research, we specified and implemented a communication system for AGVs intended as a resource for FMS. We used a cellbot framework (MIT App Inventor Beta) in order to make the infrastructure easily available for researchers. The methodology used was based on evolutionary and incremental prototyping. The main contribution of this research is to supply the communication system as an aid in establishing a development basis for orientation, traffic control and even hardware in the loop simulations where online communication with the AGV is required.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131286606","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
Comparison of H-bridge single-phase transformerless PV string inverters h桥式单相无变压器光伏串逆变器的比较
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6453349
J. Dreher, F. Marangoni, L. Schuch, M. L. da S. Martins, L. D. Flora
{"title":"Comparison of H-bridge single-phase transformerless PV string inverters","authors":"J. Dreher, F. Marangoni, L. Schuch, M. L. da S. Martins, L. D. Flora","doi":"10.1109/INDUSCON.2012.6453349","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6453349","url":null,"abstract":"This paper presents a detailed comparison among single-phase transformerless string inverters for grid-connected PV systems. The characteristics of the PV modules and their non-idealities are taking into the account for the design and the performance of the inverter with respect to the IEEE 1547 Standard. Simulated and experimental results for the inverter topologies are carried out.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124583017","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: 22
Proposal of three-phase two-level unidirectional SEPIC PWM rectifiers with high power factor 高功率因数的三相两电平单向SEPIC PWM整流器的设计
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6453373
F. Batista, C. I. Font
{"title":"Proposal of three-phase two-level unidirectional SEPIC PWM rectifiers with high power factor","authors":"F. Batista, C. I. Font","doi":"10.1109/INDUSCON.2012.6453373","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6453373","url":null,"abstract":"This paper presents the initial theoretical analysis of three-phase two-level unidirectional SEPIC PWM rectifiers. The rectifiers operate in CCM (continuous conduction mode) with high power factor and output voltage control. Converter switching stages are analyzed for single-phase structure and the three-phase Y-connected and the Δ-connected rectifiers are derived from it. These rectifiers have the advantages of providing high power factor with low input filtering effort, as Boost rectifiers, and lower output voltage level, as Buck rectifiers. The disadvantage is the increase of component count, due the need for additional capacitors and inductor per phase. The control strategy is presented with a description of the objectives of the mains current control loop and the output voltage control loop. Simulation results from a rectifier with 380V input voltage, 400V output voltage, 20kHz switching frequency and 6kW output power are also presented.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117032557","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
Five-level T-type inverter based on multi-state switching cell 基于多态开关单元的五电平t型逆变器
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6453728
R. G. A. Cacau, R. Bascopé, J. A. F. Neto, G. Bascope
{"title":"Five-level T-type inverter based on multi-state switching cell","authors":"R. G. A. Cacau, R. Bascopé, J. A. F. Neto, G. Bascope","doi":"10.1109/INDUSCON.2012.6453728","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6453728","url":null,"abstract":"In this paper, a new T-type inverter topology based on multi-state switching cell is proposed. The topology presents five-levels voltage before of output LC filter, providing high order harmonics that are easily filtered. In this topology, the output filter ripple frequency is twice the switching frequency, therefore reducing the magnetic weight and volume. Other characteristics of the inverter are current sharing through the devices, facilitating its losses dissipation, due to increased contact area and few involved components in the current flow path. In order to verify its feasibility, a design example as well as experimental results for a 5kW prototype is presented in this work.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"8 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129136918","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
Model for electrical characteristics of Electrodeless Fluorescent Lamps 无极荧光灯电气特性模型
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6451387
M. F. da Silva, N. B. Chagas, J. Fraytag, R. Marchesan, F. Bisogno, R. A. Pinto, R. D. do Prado
{"title":"Model for electrical characteristics of Electrodeless Fluorescent Lamps","authors":"M. F. da Silva, N. B. Chagas, J. Fraytag, R. Marchesan, F. Bisogno, R. A. Pinto, R. D. do Prado","doi":"10.1109/INDUSCON.2012.6451387","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6451387","url":null,"abstract":"This paper presents an electric equivalent model of the Induction Electrodeless Fluorescent Lamps (IEFL). The model is based on resistances and reactances and takes into account the real and reactive lamp power. One of the most important features of the proposed methodology is the concern regarding core losses and lamp reactive characteristics. In order to obtain and validate the IEFL model, a series-parallel resonant half-bridge inverter is used as the ballast power stage. Lamp discharge and coils are modeled as resistances and reactances depending on the lamp power. Simulations employing the proposed model are presented in this paper and they are in agreement with experimental results.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126843995","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
Automatic reconfiguration of distribution networks using Smart Grid concepts 使用智能电网概念的配电网络自动重构
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6451381
D. Bernardon, L. L. Pfitscher, L. Canha, A. Abaide, V. Garcia, V. Montagner, L. Comassetto, M. Ramos
{"title":"Automatic reconfiguration of distribution networks using Smart Grid concepts","authors":"D. Bernardon, L. L. Pfitscher, L. Canha, A. Abaide, V. Garcia, V. Montagner, L. Comassetto, M. Ramos","doi":"10.1109/INDUSCON.2012.6451381","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6451381","url":null,"abstract":"Topological reconfiguration is an important tool for the planning and operation of electric power distribution systems. Usually, the utilities can use multiple criteria regarding the observation of regulation policies and public awareness to drive the topological reconfiguration. Several researchers are looking for new optimization methods, as the complexity of this combinatorial issue is high in large systems and the classic optimization methods are failing to address the problem reasonably. Additionally, there is possibility to explore the automation equipment applying the concept of Smart Grid. This paper presents a new methodology and computer program for distribution network automatic reconfiguration. The topology is defined in real time and automatically performed by means of remote-controlled switches. The methodology includes a validation by computer simulations based on a multiple criteria decision making method. The developed tool has been applied in a pilot area of a power utility in Brazil.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359059","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
Regenerative AC electronic load with LCL filter 带LCL滤波器的蓄热式交流电子负载
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6452711
R. L. Klein, A. F. de Paiva, M. Mezaroba
{"title":"Regenerative AC electronic load with LCL filter","authors":"R. L. Klein, A. F. de Paiva, M. Mezaroba","doi":"10.1109/INDUSCON.2012.6452711","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6452711","url":null,"abstract":"This article present the design and implementation of a regenerative AC electronic load with LCL filter. The electronic load is composed by a current controlled rectifier, which drains from the equipment under test (EUT) the desired current profile, and a current controlled inverter connected to the grid, which is responsible for power regenerating. The control strategy, modeling and design of the controllers are presented. Experimental results on a prototype of 4.5 kVA are presented to validate the proposed system.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130727940","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
On the use of a low frequency boost rectifier as a high power factor LED driver 关于采用低频升压整流器作为高功率因数LED驱动器
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6453176
H. Braga, M. Dias, P. S. Almeida
{"title":"On the use of a low frequency boost rectifier as a high power factor LED driver","authors":"H. Braga, M. Dias, P. S. Almeida","doi":"10.1109/INDUSCON.2012.6453176","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6453176","url":null,"abstract":"This paper presents a discussion about the use of a low frequency boost pre-regulator as an LED driver. This kind of very simple converter may provide high power factor, low input current distortion and even standards compliance. A mathematical description of relevant equations is provided and an experimental study applied to a low power, low output voltage desktop luminaire is presented. Preliminary results show that it is possible to design a high power factor low cost LED driver with no need of electrolytic capacitors, what may confer an extended lifetime to the lighting fixture. Due to the discontinuous nature of LED current, a decrement of 10% in the luminous efficacy of LED elements has been measured. Moreover, the equipment has featured an efficiency of 59%, mainly due to the required use of a low frequency transformer. Similar low frequency and high power factor LED drivers have been also studied and presented here, and are mainly focused to street lighting applications. In this case no transformers are required at all, what may define much higher converter efficiency.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133607341","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
MPPT techniques applied to the control of a module-integrated inverter grid-connected based on Zeta converter for PV panels 将MPPT技术应用于基于Zeta变换器的光伏板模块集成逆变器并网控制
2012 10th IEEE/IAS International Conference on Industry Applications Pub Date : 2012-11-01 DOI: 10.1109/INDUSCON.2012.6452496
G. R. Pedrollo, Fernando B. Dos Reis, P. F. D. de Faria, R. C. Viero, G. Levin, J. de Lima, F. D. dos Reis
{"title":"MPPT techniques applied to the control of a module-integrated inverter grid-connected based on Zeta converter for PV panels","authors":"G. R. Pedrollo, Fernando B. Dos Reis, P. F. D. de Faria, R. C. Viero, G. Levin, J. de Lima, F. D. dos Reis","doi":"10.1109/INDUSCON.2012.6452496","DOIUrl":"https://doi.org/10.1109/INDUSCON.2012.6452496","url":null,"abstract":"This paper presents the study and implementation of maximum power point tracking techniques (MPPT) applied to a module-integrated inverter based on a Zeta converter. The module-integrated inverter allows electricity generated by a PV solar panel to be injected into the commercial power grid. This structure provides significant advantages over the structure that employs the combination of multiple panels connected to a large single inverter (central inverter). Among the advantages offered by the module-integrated structure can be highlighted: modularity, allowing the natural parallelism of the systems, increased system reliability, because in case of failure of a module the plant remains powered after all energy is provided by several PV panels and their module-integrated inverters that work independently, and finally, there is the possibility of obtaining the MPPT individually, which is quite interesting in large systems, where shading may occur in only a few panels. The system employed in this work consists in the association of a PV array to a Zeta converter in cascaded with a single phase full-bridge inverter operating synchronized with the power grid at the same frequency. A Zeta converter working in DCM is responsible for the synthesis of a rectified sinusoidal current waveform synchronized with the grid. The CSI is used to invert the current every 180°. In this study three MPPT techniques were examined, namely Constant Voltage, Perturb and Observe and Hill Climbing. A prototype was built using digital signal processing. The obtained results validated the presented study, described in the work.","PeriodicalId":442317,"journal":{"name":"2012 10th IEEE/IAS International Conference on Industry Applications","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132347276","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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