2009 Brazilian Power Electronics Conference最新文献_第5页

Digital control of a Full-Bridge — Flyback isolated current rectifier with power factor correction 带功率因数校正的全桥反激隔离电流整流器的数字控制

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347697

J. Duarte, C. Rech, M. Mezaroba, L. Michels

引用次数: 2

DC-DC converter with large conversion ratio employing the one-cycle control technique 采用单周期控制技术的大转换率DC-DC变换器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347652

A. A. Bento, E. D. da Silva, L. V. Hartmann

引用次数: 4

Single-stage AC-DC converter with PFC based on continuous input current charge-pump topologies 基于连续输入电流-电荷泵拓扑结构的PFC单级AC-DC变换器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347715

C. S. Postiglione, A. Fuerback, C. Nascimento, A. Perin

引用次数: 0

Combined direct adaptive controller for a three-phase four-wire shunt active power filter 三相四线并联有源电力滤波器的组合直接自适应控制器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347641

M. Sefanello, H. Pinheiro, H. Grundling

引用次数: 5

Three-phase cascade multilevel inverter using commutation sub-cells 采用换相子单元的三相级联多电平逆变器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347732

G. Waltrich, I. Barbi

引用次数: 3

HPF boost interleaved operating in discontinuous conduction mode for trolleybus application 用于无轨电车的高频升压交错断续导通模式

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347630

F. Gonçalves, C. Canesin, G. Melo, L. de Freitas

{"title":"HPF boost interleaved operating in discontinuous conduction mode for trolleybus application","authors":"F. Gonçalves, C. Canesin, G. Melo, L. de Freitas","doi":"10.1109/COBEP.2009.5347630","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347630","url":null,"abstract":"This paper deals with results of a research and development (R&D) project in cooperation with Electric Power Distribution Company in Sa¿o Paulo (Brazil) regarding the development and experimental analysis of a new concept of power drive system suitable for application in traction systems of electrical vehicles pulled by electrical motors, which can be powered by urban DC or AC distribution networks. The proposed front-end structure is composed by five boost power cells in interleaving connection, operating in discontinuous conduction mode as AC-DC converter, or as DC-DC converter, in order to provide the proper DC output voltage range required by DC or AC adjustable speed drivers. Therefore, when supplied by single-phase AC distribution networks, and operating as AC-DC converter, it is capable to provide high power factor, reduced harmonic distortion in the input current, complying with the restrictions imposed by the IEC 61000-3-4 standards resulting in significant improvements for the trolleybuses systems efficiency and for the urban distribution network costs. Considering the compliance with input current restrictions imposed by IEC 61000-3-4 standards, two digital control strategies were evaluated. The digital controller has been implemented using a low cost FPGA (XC3S200) and developed totally using a hardware description language VHDL and fixed point arithmetic. Experimental results from a 15 kW low power scale prototype operating in DC and AC conditions are presented, in order to verify the feasibility and performance of the proposed system.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"25 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133169449","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

Artificial neural networks applied to single-phase load harmonic characterization 人工神经网络在单相负载谐波表征中的应用

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347712

C. Nascimento, A.A. Oliveira, A. Goedtel, M. Suetake, I. Silva

引用次数: 1

A study on single-phase delta UPS topological alternatives 单相三角型UPS拓扑方案研究

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347624

Frederico T. Ghetti, P. G. Barbosa, H. Braga

引用次数: 3

FPGA realization of multilevel space vector PWM using non-orthogonal moving reference frame 利用非正交移动参考系的FPGA实现多电平空间矢量PWM

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347629

E. Lima, N. Filho, J. Pinto

{"title":"FPGA realization of multilevel space vector PWM using non-orthogonal moving reference frame","authors":"E. Lima, N. Filho, J. Pinto","doi":"10.1109/COBEP.2009.5347629","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347629","url":null,"abstract":"This paper presents the implementation of Space Vector PWM algorithm using non-orthogonal moving reference frame for diode-clamped multilevel inverter in Field Programmable Gate Array (FPGA). In this algorithm, the non-orthogonal reference voltage is obtained according to the sector where the Reference Voltage (V*) lies. From the triangle identification inside hexagon, the Nearest Three Vectors (NTV) are determined using the information of the sector and triangle where V* is located. The duty cycles are calculated by a set of simple equations. The switching pattern is generated through coefficients referred to by the triangle number where V* lies. The softwares Quartus II®, ModelSim® and MatLab® were used to describe the algorithm in hardware description language, to check, test and simulate it. Fix-pointed 16-bit signed patterns were used for calculus. A 10 MHz clock was used to obtain the switching time, whereas the PWM works with a 50 MHz clock, in order to improve the PWM generation accuracy. The synchronism between switching time calculation and the PWM signal generation was carried out by a state machine. Altera® Cyclone® II FPGA Starter Development Kit with EP2C20F484C7N FPGA, was used to generate the V* and develop the proposed algorithm. The experimental results obtained with the three-level and simulation results with DCI five-level inverter were satisfactory, validating the FPGA algorithm implementation. This algorithm can be extended to topologies of generic-ordered DCI multilevel inverters, very slightly altering its computational efforts.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"392 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":"128484398","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

Resonant circuit model and design for a high frequency high voltage switched-mode power supply 高频高压开关电源的谐振电路模型与设计

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347638

G. L. Piazza, R. L. Alves, C. Font, I. Barbi

引用次数: 7