“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”

ARRIBA SIEMPRE ARRIBA HASTA ALCANZAR LA GLORIA JORGE CHAVEZ DARTNELL SEPTIEMBRE 1910


SAO PAULO BRASIL

domingo, 27 de julho de 2014

Power Quality Improvement by Using Multipulse AC-DC Converters for Varying Loads B.Suresh Kumar International Journal of Scientific Engineering and Technology 2014




International Journal of Scientific Engineering and Technology (ISSN : 2277-1581) Volume No.3 Issue No.2, pp : 78 - 84 1 Feb 2014 Power Quality Improvement by Using Multipulse AC-DC Converters for Varying Loads B.Suresh Kumar Asst.Professor,EEE dept,CBIT-Hyderabad
FULL PAPER
http://ijset.com/ijset/publication/v3s2/IJSET_2014_201.pdf

Multipulse AC–DC Converters for Improving Power Quality: A Review Bhim Singh,Sanjay Gairola


Bhim Singh, Senior Member, IEEE, Sanjay Gairola, Brij N. Singh, Member, IEEE, Ambrish Chandra, Senior Member, IEEE, and Kamal Al-Haddad, Fellow, IEEE
Abstract—Three-phase multipulse ac–dc converters (MPC) are developed for improving power quality to reduce harmonics in ac mains and ripples in dc output. This paper deals with the multipulse ac–dc converter configurations, state of art, their performance, power quality aspects, components selection considerations, latest trends, future developments, and potential applications. It is targeted to provide broad perspective on multipulse converter technology to the researchers, engineers, and designers dealing with them. A classified list of more than 250 research publications on the subject is also given for quick reference.

Ensaio Retificador trifásico Nominal ENG. LUIZ DANIEL SANTOS BEZERRA INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ BRASIL

Automatic voltage regulator based on series voltage compensation with ac chopper C.-Y. Park1 J.-M. Kwon2 B.-H. Kwon Department of Electronics and Electrical Engineering, Pohang University of Science and Technology


Automatic voltage regulator based on series voltage compensation with ac chopper
C.-Y. Park1 J.-M. Kwon2 B.-H. Kwon1 1
Department of Electronics and Electrical Engineering, Pohang University of Science and Technology 2Department of Electrical Engineering, Hanbat National University, Daejeon, Republic of Korea E-mail: jmkwon@hanbat.ac.kr
Abstract: This study proposes an automatic voltage regulator (AVR) based on series voltage compensation with an ac chopper. The proposed AVR is made up of a pulse-width-modulated (PWM) ac chopper and a transformer for series voltage compensation. In the ac chopper, the commutation problem is solved by switching patterns. The ac chopper provides direct ac–ac power conversion without energy storage elements, so the size and cost of the AVR are reduced. The ac chopper compensates for only the required voltage, so the switches have reduced ratings and stresses. Using bypass switches, the proposed AVR can compensate not only for the voltage sag but also for the voltage swell of the input voltage. Experimental results verify that the proposed AVR quickly compensates for the voltage sag and swell of the input voltage.

Advanced Control of Three-Phase Four-Wire Inverters using Feedback Linearization under Unbalanced and Nonlinear Load Conditions Vo, Nguyen Qui Tu ; Lee, Dong-Choon ; Dept. of Electrical Eng., Yeungnam University KOREA -AUGUST 2013

Advanced Control of Three-Phase Four-Wire Inverters using Feedback
Linearization under Unbalanced and Nonlinear Load Conditions
Nguyen Qui Tu Vo1, and Dong-Choon Lee
Dept. of Electrical Eng., Yeungnam University-KOREA
 Journal title : The Transactions of the Korean Institute of Power Electronics
Volume 18, Issue ,4,  2013, pp.333-341
Publisher : The Korean Institute of Power Electronics

Abstract - In this paper, a feedback linearization control is proposed to regulate the output voltages of a three-phase four-wire inverter under the unbalanced and nonlinear load conditions. First, the nonlinear model of system including the output LC filters is derived in the d-q-0 synchronous reference frame. Then, the system is linearized by the multi-input multi-output feedback linearization. The tracking controllers for d-q-0-components of three-phase line-to-neutral load voltages are designed by linear control theory. The experimental results have shown that the proposed control method gives the good performance in response to the load conditions.

Design of Robust Voltage Controller for Single-phase UPS Inverter Ku, Dae-Kwan ; Ji, Jun-Keun ; Cha, Guee-Soo ; Moon, Jun-Hee ; The Korean Institute of Power Electronics




A Study on the Wireless Parallel Operation of a Single-phase UPS

Journal title : The Transactions of the Korean Institute of Power Electronics
Volume 16, Issue ,4,  2011, pp.317-325
Publisher : The Korean Institute of Power Electronics
Design of Robust Voltage Controller for Single-phase UPS Inverter
Ku, Dae-Kwan ; Ji, Jun-Keun ; Cha, Guee-Soo ; Moon, Jun-Hee

Abstract
In this paper a robust voltage controller for a single-phase UPS inverter is newly presented. The voltage controller is designed using -based robust control scheme to simultaneously guarantee robust stability and robust tracking performance in the presence of load variations. Firstly the robust performance of the resulting controller is theoretically confirmed via -analysis. Then simulations and experiments for the single-phase inverter system with linear and nonlinear loads demonstrate feasibility of the proposed control method providing improved performance - good regulation and fast dynamic response.

DOWNLOAD
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JRJJC3_2011_v16n4_317

sexta-feira, 25 de julho de 2014

Programa de simulación de circuitos Micro-Cap. Versión 9, 10 [. Pdf-ZIP ] Autores: M.A.Amelina, S.A.Amelin. Libro de texto. Edición electrónica.


Programa de simulación de circuitos Micro-Cap. Versión 9, 10 [. Pdf-ZIP ] Autores: M.A.Amelina, S.A.Amelin. Libro de texto. Edición electrónica.
 Resumen editor: La técnica de modelado de dispositivos electrónicos utilizando el programa v.9.x Micro-Cap, firme v.10.x Spectrum Software (http://www.spectrum-soft.com/). Una breve digresión, que muestra las principales características del programa son ejemplos de modelado de diferentes clases de dispositivos electrónicos y, a continuación, se proporciona información básica detallada sobre el uso de Micro-Cap.
LINK
https://www.mediafire.com/?49cg83jqa99i2k7

quarta-feira, 23 de julho de 2014

Amantys describes their latest smart gate drivers at PCIM 2014

Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados André Brandão Martins UNIVERSIDADE TECNICA DE LISBOA




Mestrado Integrado em Engenharia Electrotécnica e de Computadores UNIVERSIDADE TECNICA DE LISBOA Dissertação
Detalhes Aluno: André Brandão Martins (ist154485)
Título: Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados
Resumo:
No âmbito desta dissertação pretende-se analisar e dimensionar um Conversor Ressonante Série CC-CC a utilizar como Carregador de Baterias sem Contacto para Equipamentos Electrónicos de Transmissão de Dados (6 VCC ? 1A). Algumas características do equipamento electrónico, em particular as suas dimensões, impõem uma distância máxima de 20mm entre os enrolamentos primário e o enrolamento secundário do transformador. De forma a definir o tipo de núcleo e o tipo de enrolamento a utilizar, foi realizada a caracterização experimental de diferentes transformadores com baixo acoplamento magnético. Considerando o baixo valor do factor de acoplamento magnético que este tipo de Sistemas de Transmissão de Energia apresenta, e o consequente impacto no rendimento, foi dimensionado e estudado um protótipo, através da simulação e teste de várias topologias de conversores e transformadores, a diversas distâncias, com o intuito de obter uma solução que apresentasse melhor desempenho. Projectou-se um conversor ressonante série e procedeu-se à simulação do seu funcionamento, utilizando diferentes parâmetros: impedância característica, afastamento entre primário e secundário e carga. Para validação dos modelos teóricos e de simulação construiu-se um inversor em meia-ponte com uma malha de compensação ressonante série, a operar à frequência de 100kHz, a partir do qual se obtiveram os resultados experimentais.

Publicação

Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados, André Brandão Martins, 2011,

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