Stacked Bidirectional Boost DC-DC Converter

Nimitti, Fabiano Gonzales; Andrade, António Manuel Santos Spencer; Giacomini, Julian C.

doi:10.1109/cobep53665.2021.9684060

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…This converter can operate in asynchronous interleaved PWM strategy, which decrease the input current ripple and current stresses but shows a high‐voltage stress in the switches. To keep the low input current ripple and improve the voltage across the switches, the converter in Nimitti et al 21 is proposed. However, this converter requires a high inductors value to operate in continuous conduction mode (CCM), which increases its volume and cost.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Nimitti

Andrade

2022

Circuit Theory & Apps

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SummaryIn this paper, a new bidirectional nonisolated DC‐DC (direct current–direct current) converter to interface microgrid energy storage systems is proposed. This converter is based on the classical bidirectional boost/buck converter, the most used converter in microgrids and can operate both in step‐down and step‐up modes. Besides that, this converter presents low number of components, low voltage and current stress on components, simplicity of operation, low current ripple from low‐side power supply, and two different modes of operation: synchronous and asynchronous. In addition, in this paper, the modeling, control, and power losses estimate of the proposed converter are carried out and the performance of the converter in different aspects of the microgrid application is evaluated, such as step load, abrupt power flux change, and transient analysis. A prototype of 1 kW, 144 to 400 V, is developed in the laboratory to validate the theoretical evaluations of the proposed converter. Besides that, the proposed converter is also evaluated under different dynamic condition which illustrates the effectiveness of the converter. Finally, the maximum efficiency obtained is 97.1% for 500 W working in step‐down operation.

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Section: Introductionmentioning

confidence: 99%

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Nimitti

Andrade

2022

Circuit Theory & Apps

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Análise e Desenvolvimento de um Conversor Bidirecional Não Isolado Baseado no Conversor Boost/ Buck CC-CC

Nimitti¹,

Andrade²

2022

Eletrônica de Potência

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Resumo -Neste artigo, uma nova topologia não isolada de conversor CC-CC bidirecional baseado no conversor boost/buck clássico é proposta. O conversor proposto pode operar tanto em modo elevador quanto abaixador de tensão e apresenta como principais características: baixo esforço de tensão e corrente nos componentes, simplicidade de operação e diferentes modos de operação, tais como: síncrono e assíncrono. Para garantir um bom desempenho do conversor proposto, a modelagem e controle foi desenvolvida neste artigo. Desta forma, para validar as avaliações teóricas, um protótipo de 1 kW, 144 V/400 V foi desenvolvido em laboratório, alcançando uma eficiência de pico de 94,2 % para 500W.Palavras-chave -Conversor bidirecional CC-CC, conversor boost, conversor buck, conversor não isolado.

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Stacked Bidirectional Boost DC-DC Converter

Cited by 2 publications

References 8 publications

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Bidirectional converter based on boost/buck DC‐DC converter for microgrids energy storage systems interface

Análise e Desenvolvimento de um Conversor Bidirecional Não Isolado Baseado no Conversor Boost/ Buck CC-CC

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