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2009 Brazilian Power Electronics Conference最新文献

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Harmonic, reactive and unbalance compensation by means of CPT framework 利用CPT框架进行谐波、无功和不平衡补偿
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347610
H. Paredes, F. Marafão, T. M. Terrazas, P. Serni
{"title":"Harmonic, reactive and unbalance compensation by means of CPT framework","authors":"H. Paredes, F. Marafão, T. M. Terrazas, P. Serni","doi":"10.1109/COBEP.2009.5347610","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347610","url":null,"abstract":"This paper presents possible selective current compensation strategies based on the Conservative Power Theory (CPT). This recently proposed theory, introduces the concept of complex power conservation under non-sinusoidal conditions. Moreover, the related current decompositions results in several current terms, which are associated with a specific physical phenomena (power absorption P, energy storage Q, voltage and current distortion D). Such current components are used in this work for the definition of different current compensators, which can be selective in terms of minimizing particular disturbing effects. The choice of one or other current component for compensation directly affects the sizing and cost of active and/or passive devices and it will be demonstrated that it can be done to attend predefined limits for harmonic distortion, unbalances and/or power factor. Single and three-phase compensation strategies will be discussed by means of the CPT framework. Simulation and experimental results will be demonstrated in order to validate their performance.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"6 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":"125761926","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
Design of a controller for tracking sinusoidal references with robustness to load disturbances 对负载扰动具有鲁棒性的正弦参考跟踪控制器设计
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347727
Vinaicius F. Montagner, S. P. Ribas
{"title":"Design of a controller for tracking sinusoidal references with robustness to load disturbances","authors":"Vinaicius F. Montagner, S. P. Ribas","doi":"10.1109/COBEP.2009.5347727","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347727","url":null,"abstract":"This paper provides a condition to compute the gains of a controller that ensures robust tracking of sinusoidal reference signals with respect to disturbances affecting the plant. The proposed design conditions are written as a convex optimization problem, easily solved by specialized programs. An example of application of the proposed controller for a plant given by an LC filter and a load modeled as a disturbance, which can describe the output stage of several power converters, illustrate good performance of the closed-loop system, with no need of previous knowledge of the load model neither measurement or estimation of the load current.","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":"132338984","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
Emergency lighting system integrated into a compact high-brightness LED lamp 应急照明系统集成在一个紧凑的高亮度LED灯
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347603
R. A. Pinto, M. Cosetin, M. Cervi, A. Campos, R. D. do Prado
{"title":"Emergency lighting system integrated into a compact high-brightness LED lamp","authors":"R. A. Pinto, M. Cosetin, M. Cervi, A. Campos, R. D. do Prado","doi":"10.1109/COBEP.2009.5347603","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347603","url":null,"abstract":"This paper presents an emergency lighting system integrated into a compact lamp using high-brightness LEDs. These devices have high luminous efficacy, long useful life, small size and they are resistant to vibrations. Besides, they are supplied with low voltage and current values and they do not need ignition process. These features make these devices attractive to use in emergency lighting. The proposed circuit is simple and has low cost. Its main characteristic is the easiness of installation simply replacing incandescent and compact fluorescent lamps with a LED lamp. The proposed circuit supplies the LEDs in two ways. First, by mains (220VAC) using a circuit called voltage regulator in DC. Another way, in the emergency mode, the circuit supplies the LED using a Ni-MH battery without the need of converter. The Brazilian standard (NBR 10898) and IEEE standard (IEEE Std 446–1995) for emergency lighting systems are attended by the topology. The complete circuit was simulated and the results show a satisfactory behavior of the lamp.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"13 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":"132520489","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
Synthesis of controlled reactances using VSC converters 利用VSC变流器合成可控电抗
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347675
A. C. Borré, R. Dias, A. de Lima, E. Watanabe
{"title":"Synthesis of controlled reactances using VSC converters","authors":"A. C. Borré, R. Dias, A. de Lima, E. Watanabe","doi":"10.1109/COBEP.2009.5347675","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347675","url":null,"abstract":"This work presents a review of the main techniques for synthesizing positive and negative inductance using power electronics: VAPAR (variable active-passive reactance), BVI (bootstrap variable inductance), AVI (active variable inductance) and DRS (direct reactance synthesis). Based on this review a new topology for synthesizing a fundamental frequency variable reactances based on synchronism circuits (PLL - phase-locked loop) is presented. The main advantage of this new technique is that the control signals are immune to the noise from the grid. Some simulation results, using PSCAD/EMTDC, are presented for the proposed circuit.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"72 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":"130259763","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 high efficiency autonomous street lighting system based on solar energy and LEDs 基于太阳能和led的高效自主街道照明系统
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347688
M. Costa, G. H. Costa, A.S. dos Santos, L. Schuch, J. R. Pinheiro
{"title":"A high efficiency autonomous street lighting system based on solar energy and LEDs","authors":"M. Costa, G. H. Costa, A.S. dos Santos, L. Schuch, J. R. Pinheiro","doi":"10.1109/COBEP.2009.5347688","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347688","url":null,"abstract":"This work presents an autonomous street lighting system based on solar energy as primary source, batteries as secondary source, and lighting emitting diodes (LEDs) as lighting source. This system is being presented as an alternative for remote localities, like roads and crossroads. Besides, it presents high efficiency, because all power stages are implemented in DC current. The design of LEDs fixture, in order to replace a 70 W high pressure sodium (HPS) lamp, is performed. This design takes into account the human eye response in scotopic conditions. LEDs driver and battery charger experimental results are presented. The battery charger presents three control modes: maximum power point tracker (MPPT) mode; constant current mode; and constant voltage mode. The control mode depends on the battery state (charged/discharged), and solar irradiance level.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"260 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":"133940197","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: 113
Modeling approach based on experimental results for prediction of measurement errors in energy meters 基于实验结果的电能表测量误差预测建模方法
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347634
F. Gonçalves, C. Canesin, J. Pinto, L. Galotto, R. B. Godoy
{"title":"Modeling approach based on experimental results for prediction of measurement errors in energy meters","authors":"F. Gonçalves, C. Canesin, J. Pinto, L. Galotto, R. B. Godoy","doi":"10.1109/COBEP.2009.5347634","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347634","url":null,"abstract":"This paper presents a general modeling approach to investigate and to predict measurement errors in active energy meters both induction and electronic types. The measurement error modeling is based on generalized additive model (GAM), ridge regression method and experimental results of meter provided by a measurement system. The measurement system provides a database of 26 pairs of test waveforms captured in a real electrical distribution system, with different load characteristics (industrial, commercial, agricultural, and residential), covering different harmonic distortions, and balanced and unbalanced voltage conditions. In order to illustrate the proposed approach, the measurement error models are discussed and several results, which are derived from experimental tests, are presented in the form of three-dimensional graphs, and generalized as error equations.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"55 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":"127576376","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
Design and implementation of a digital control system for an axial flux switched reluctance motor 轴向磁通开关磁阻电机数字控制系统的设计与实现
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347750
F. Sass, J. Santisteban, E. Sanches
{"title":"Design and implementation of a digital control system for an axial flux switched reluctance motor","authors":"F. Sass, J. Santisteban, E. Sanches","doi":"10.1109/COBEP.2009.5347750","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347750","url":null,"abstract":"Nowadays, besides the rapid growth of different areas like the mechanical and electrical ones, it is possible to identify a particular effort to develop new motors including new electrical drives and control systems. Additionally, these equipments are being designed to give them the maximum efficiency as the energy cost is continuously increasing. With this in mind, some results related to a particular switched reluctance motor, are presented. The airgap between its poles are distributed in such a way that they are parallel to the rotation axis. Such structure is little studied by researchers. On the other hand, in order to maintain a low ripple torque, a particular algorithm is proposed which consists in imposing motor currents with a special format. The implementation of this strategy was made using two microcontrollers, one to determine the position and speed of the rotor while the second impose the appropriated current to the motor windings. This strategy has been successfully tested to control the speed of the rotor in a simple feedback loop.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"283 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":"131667565","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
Development of hardware and software for three-phase power quality disturbances detection, classification and diagnosis using Kalman Filter theory 利用卡尔曼滤波理论开发三相电能质量扰动检测、分类和诊断的硬件和软件
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347635
A. A. Carniato, R. B. Godoy, J. Pinto
{"title":"Development of hardware and software for three-phase power quality disturbances detection, classification and diagnosis using Kalman Filter theory","authors":"A. A. Carniato, R. B. Godoy, J. Pinto","doi":"10.1109/COBEP.2009.5347635","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347635","url":null,"abstract":"The aim of this work is the development of a three-phase power quality disturbances detection, classification and diagnosis tool. The tool senses the electrical grid, and when a disturbance is detected, the voltage signals are acquired and analyzed. The result of the analysis is the classification of the disturbance and the diagnosis of its probable causes. The detection is done using Kalman filter, while the classification and diagnosis are done using wavelets and fast Fourier transforms. The implementation involves hardware and software. The hardware is composed by voltage sensors, signal conditioning circuit, DSP320C6713 DSP board and an acquisition board. The software is responsible for the classification and diagnosis. Three cases of typical disturbances that affect electrical systems are presented. The results are consistent showing the feasibility of the proposed tool.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"79 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":"115909155","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
Design and robustness analysis of a state feedback controller applied to a bidirectional boost converter 应用于双向升压变换器的状态反馈控制器设计及鲁棒性分析
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347730
Vinicius F. Montagner, A. Ferreira
{"title":"Design and robustness analysis of a state feedback controller applied to a bidirectional boost converter","authors":"Vinicius F. Montagner, A. Ferreira","doi":"10.1109/COBEP.2009.5347730","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347730","url":null,"abstract":"This paper investigates the application of a state feedback control technique to a bidirectional boost converter. The proposed control system is mathematically formulated such that the state feedback control gains become the gains of a proportional-integral controller for the voltage loop and a proportional gain for the current loop. The control design does not rely on manual tuning procedures neither use complex adaptive techniques. On the contrary, the control gains are rapidly and automatically calculated off-line, ensuring good transient and good steady state responses. A robust analysis evaluated a posteriori demonstrate that the closed-loop system has good robustness against uncertainty on the DC input voltage and on the load parameter.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"46 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":"114561922","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
Position control of a PMSM using a filterbank-ADALINE load torque estimator 使用滤波器组- adaline负载转矩估计器的永磁同步电机位置控制
2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347616
R. C. Garcia, J. Pinto
{"title":"Position control of a PMSM using a filterbank-ADALINE load torque estimator","authors":"R. C. Garcia, J. Pinto","doi":"10.1109/COBEP.2009.5347616","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347616","url":null,"abstract":"This paper presents a new technique for load torque estimation applied on the position control of a Permanent Magnet Synchronous Motor (PMSM). The estimator makes use of the different properties of mechanical and electromagnetic torque in frequency domain, extracted by a filterbank. This information is processed by two real-time ADALINEs, which estimate the rotor inertia and the load torque. The proposed estimator is quite simple to implement, has a good accuracy and only depends on the electromagnetic torque and mechanical acceleration. That estimator can be used for others AC motors. Simulations in MATLAB/SIMULINK and experimental results show its performance.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"28 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":"115984672","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
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