terça-feira, 31 de março de 2015
Op Amp Applications Handbook-Walt Jung, Editor with the technical staff of Analog Devices
LINK ORIGINAL EN LA WEB:
http://www.ee.mut.ac.th/home/suriya/ebooks/OpAmp%20Applications%20Handbook%20-%20Analog%20Devices.pdf
dq-based individual phase control of three-phase four-wire PWM rectifier for UPS -Kim,Seung Ho-Dept.of Electrical Engineering
dq-based individual phase control of three-phase four-wire PWM rectifier for UPS
Kim,Seung Ho
Dept.of Electrical Engineering
Graduate School of Industry and Engineering
Seoul National University of Science and Technology
Recently, the power quality sensitive loads such as computer and communications are so increased that the power supply with good power quality has come to the fore. However, it is possible that the public grid is interrupted by unexpected fault. Therefore, the UPS(uninterruptible power supply) has become an alternative solution to solve this problem. Generally, the UPS consist of a rectifier, a battery, and a PWM inverter and recently they use IGBT PWM rectifier to reduce input THDi and improve the input power factor.
In this configurations the three-phase four-wire input UPS is widely used to eliminate the transformers in the UPS system. The aims of control algorithm for the IGBT PWM rectifier in three-phase four-wire UPS is a unity power factor. The SVM(space vector modulation) is one of the most popular and preferable PWM scheme because it reduces the commutation losses and harmonics in the output voltage, and has higher modulation index than SPWM(sinusoidal PWM) but they need a 3D SVM to control three-phase four-wire PWM rectifier and have some difficulties like as selection of inductance of input inductor and controls the neutral current.
To improve this problem the another control algorithm which controls each phase individually has been suggested but this control algorithm use analog based control so ir's so sensitive and unstable. So another new algorithm which is added d-q control to control algorithm which controls each phase individually is suggested and it can control stably and can reduce neutral current too. This can be seen by computer simulation and experimental result.
LINK
https://copy.com/GC0dLofelGnJ3FcD
ESTUDO E APLICAÇÃO DE TÉCNICAS DE CONTROLE EMBARCADAS PARA ESTABILIZAÇÃO DE VÔO DE QUADRICÓPTEROS -Ana Sophia Cavalcanti Alves-Universidade Federal de Juiz de Fora Pos-Graduação em Engenharia Elétrica Doutorado em Sistema de Energia-BRASIL
Universidade Federal de Juiz de Fora
Pos-Graduação em Engenharia Elétrica
Doutorado em Sistema de Energia
ESTUDO E APLICAÇÃO DE TECNICAS DE CONTROLE
EMBARCADAS PARA ESTABILIZAÇÃO DE VÔO DE
QUADRICOPTEROS
ANA SOPHIA CAVALCANTI ALVES
Tese apresentada ao Programa de Pos- Graduação em Engenharia Elétrica, area de concentração: Sistemas de Energia, da Faculdade de Engenharia da Universidade Federal de Juiz de Fora como requisito parcial para obtenção do Titulo de Doutor.
LINK FULL THESIS:
http://www.ufjf.br/ppee/files/2013/03/Tese_Ana_Sophia.pdf
sábado, 28 de março de 2015
EZATEC FABRICANTE DE NOBREAKS NA FIEE SÃO PAULO 23-27 MARÇO 2015 BRASIL
PARTICIPAÇÃO DA EZATEC FABRICANTE DE NOBREAKs E ESTABILIZADORES NA FIEE SÃO PAULO 23-27 MARÇO 2015 A MAIOR FERIA ELETRÔNICA DO AMERICA DO SUL
sexta-feira, 27 de março de 2015
quinta-feira, 26 de março de 2015
TCT BRASIL APRESENTOU TREINAMENTO FUJI TECHDAY 26/03/2015 DAS 8:00 AS 12:00 HOLIDAY INN ANHEMBI SÃO PAULO BRASIL
NA FOTOGRAFIA COM MEU DISTINGUIDO MESTRE EM ELETRONICA DE POTÊNCIA
NITESH SATHEESH
APPLICATION ENGINEER
SEMICONDUCTOR DEPARTMENT
FUJI ELECTRIC CORP. OF AMERICA-USA
LINK: www.americas.fujielectric.com
Congratulations and many thanks for a great presentation .
TCT BRASIL APRESENTOU TREINAMENTO FUJI TECHDAY 26/03/2015 DAS 8:00 AS 12:00 HOLIDAY INN ANHEMBI SÃO PAULO BRASIL
EXCELENTE TREINAMENTO ORGANIZADO PELA TCT BRASIL SEMICONDUTORES
O TEMA DO DIA FUJI TECHDAY ,26 MARÇO, SÃO PAULO BRASIL,APRESENTOU OS AVANÇOS TECNOLOGICOS DOS
IGBT DA FUJI ELECTRIC.
OS MINISTRADORES DO CURSO DE TREINAMENTO:
DR. TAKU TAKAKU
Device Application Technology Dept. Semiconductor Div, Sales Group
FUJI ELECTRIC CO. LTD.-JAPAN
KENJI KIMURA
SALES MANAGER SEMICONDUCTOR DEPARTMENT
FUJI ELECTRIC CORP. OF AMERICA-USA
NITESH SATHEESH
APPLICATION ENGINEER
SEMICONDUCTOR DEPARTMENT
FUJI ELECTRIC CORP. OF AMERICA-USA
WEBSITE TCT BRASIL ;http://www.tctbrasil.com.br
TCT BRASIL APRESENTOU TREINAMENTO FUJI TECHDAY 26/03/2015 DAS 8:00 AS 12:00 HOLIDAY INN ANHEMBI SÃO PAULO BRASIL
EXCELENTE TREINAMENTO ORGANIZADO PELA TCT BRASIL SEMICONDUTORES
O TEMA DO DIA FUJI TECHDAY ,26 MARÇO, SÃO PAULO BRASIL,APRESENTOU OS AVANÇOS TECNOLOGICOS DOS
IGBT DA FUJI ELECTRIC.
OS MINISTRADORES DO CURSO DE TREINAMENTO:
DR. TAKU TAKAKU
Device Application Technology Dept. Semiconductor Div, Sales Group
FUJI ELECTRIC CO. LTD.-JAPAN
KENJI KIMURA
SALES MANAGER SEMICONDUCTOR DEPARTMENT
FUJI ELECTRIC CORP. OF AMERICA-USA
NITESH SATHEESH
APPLICATION ENGINEER
SEMICONDUCTOR DEPARTMENT
FUJI ELECTRIC CORP. OF AMERICA-USA
segunda-feira, 23 de março de 2015
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