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Master's Dissertation
DOI
10.11606/D.3.2018.tde-17072018-092952
Document
Author
Full name
Bruno Yukio Enomoto
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2018
Supervisor
Committee
Komatsu, Wilson (President)
Monteiro, José Roberto Boffino de Almeida
Villalva, Marcelo Gradella
Title in Portuguese
Conversores DC-DC Dual-Active-Bridge isolados bidirecionais.
Keywords in Portuguese
Conversores bidirecionais isolados
Conversores elétricos
Eletrônica de potência
Abstract in Portuguese
Este trabalho visa o estudo das regiões de operação de conversores CC/CC isolados bidirecionais do tipo DAB (Dual Active Bridge). É feito um estudo do comportamento do circuito com a variação dos valores das reatâncias de acoplamento, avaliando-se aspectos como eficiência, fator de potência, reativos, entre outros. A seguir é proposta uma estrutura de controle que permite a operação com tensões nos barramentos DC diferentes das nominais, minimizando as correntes absorvidas. Além disso, propõe-se uma estratégia de controle para regular a potência transferida. O trabalho inclui modelagem teórica, implementação em simulação computacional e medidas em protótipo experimental.
Title in English
Isolated bidirectional dual active bridge DC-DC converter.
Keywords in English
Isolated bidirectional converter
Power electronics
Abstract in English
This work investigates operation regions of Dual Active Bridge DC-DC isolated bidirectional converters, studying circuit behavior with the variation of the coupling reactance, evaluating parameters like efficiency, power factor, reactive flow etc. A control structure is proposed which allows operating with DC voltages different from nominal voltages, reducing the AC currents. Furthermore, a control strategy to regulate the power transferred is proposed. Methodology includes theoretical modeling, computer simulation and experimental prototype measurements.
 
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Publishing Date
2018-07-20
 
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