Fully Soft-Switched Dual-Active-Bridge Series-Resonant Converter With Switched-Impedance-Based Power Control

Yaqoob, Muhammad; Loo, K. H.; Lai, Y. M.

doi:10.1109/tpel.2018.2796137

Cited by 62 publications

(25 citation statements)

References 39 publications

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“…Com isso, em Wu et al (2018) um novo Dual-Active-Bridge Series-Resonant CC-CC Converter (DABSRC) com tanque duplo baseado no DABSRC clássicoé proposto para ampliar ainda mais a faixa de comutação suave e melhorar o desempenho do circuito. Em Yaqoob et al (2018) um DABSRC baseado em impedância comutadaé proposto, onde a operação com corrente mínima no tanque ressoante visa reduzir as perdas em condução resultantes da corrente circulante no lado de baixa tensão, além de proporcionar ZVS em todos os interruptores. Yaqoob et al (2017) propõem um conversor DAB ressonante do tipo LC baseado em um indutor controlado por chave (SCI) para mitigar as perdas resultantes da comutação fora da faixa de ZVS para uma ampla faixa de tensão e corrente de saída.…”

Section: Circuitos De Auxílioà Comutação -Cacunclassified

Circuito de Auxílio à Comutação aplicado ao conversor DAB no Gerenciamento de Banco de Baterias

Costa

Andres

Roggia

et al. 2020

Anais Do Congresso Brasileiro De Automática 2020

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Para amenizar os problemas do elevado número de conexões das mini e micro gerações nos sistemas de distribuic~ao, a instalac~ao de sistemas de armazenamento de energia (ESS) têm crescido. Para realizar a interface entre os ESS e o sistema o conversor DAB tem sido o mais utilizado por possuir características como robustez, bidirecionalidade, isolação galvânica entre outras. Porém, o conversor apresenta baixa eficiência para baixas cargas. Com isso, surgiram sistemas que podem auxiliar o conversor a obter eficiência elevada nestas condições, estes sistemas são chamados de Circuitos de Auxílio à Comutação (CAC). Logo, neste trabalho será apresentado um sistema CAC capaz de auxiliar o DAB em situações de baixas cargas. O circuito é composto por dois indutores controlados por single-pole double-throw relay - SPDT (relé de disparo duplo monopolar). Dependendo do nível de potência os indutores operam individualmente ou em conjunto. Com isso, a corrente do primário será sempre a menor possível, o que eleva a eficiência da topologia, pois reduz as perdas em condução e em comutação. Para comprovar as análises teóricas da topologia proposta serão apresentados resultados de simulação do conversor DAB operando com o CAC proposto.

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Section: Circuitos De Auxílioà Comutação -Cacunclassified

Circuito de Auxílio à Comutação aplicado ao conversor DAB no Gerenciamento de Banco de Baterias

Costa

Andres

Roggia

et al. 2020

Anais Do Congresso Brasileiro De Automática 2020

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“…The design and PSIM simulation study of the performance of a 10 kW three-phase DC-DC LCL-type series resonant converter with integrated boost function are presented in Reference [33] for steady-state operating conditions. In Reference [34], it is shown that conduction loss and switching losses are reduced for an isolated bidirectional dual-active-bridge series-resonant DC-DC converter operating at high frequency. The results are validated with a 1 kW prototype of the converter.…”

Section: Introductionmentioning

confidence: 99%

A 10 kW ZVS Integrated Boost Dual Three-Phase Bridge DC–DC Resonant Converter for a Linear Generator-Based Wave-Energy System: Design and Simulation

Harischandrappa

Bhat

2019

Electronics

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The design and performance analysis of a 10 kW three-phase DC–DC LCL-type resonant converter having a built-in boost function were carried out. This high-power converter is proposed for its application in grid-interfacing a linear generator (LG)-based wave-energy system. Fixed-frequency control is used, and the converter was designed to operate with a lagging power factor. It is shown that all switches turn on with zero-voltage switching (ZVS) for wide input voltage and load variations. This results in reduced switching losses and stresses, which is very important in large-power applications. The performance of the converter was studied through PSIM simulation software. Theoretical and simulation results are presented for comparison. Power-loss break-down analysis of the designed converter was carried out and the summary of results is presented.

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“…To reduce the turn-off losses and avoid the magnetic bias issues, DAB with a series resonant tank was studied in [12][13][14][15][16][17][18][19]. The series resonant capacitor contributes to reduce turn-off current and avoid magnetic bias, while the bidirectional power flow and voltage regulation can be easily achieved with phase shift modulation [13].…”

Section: Introductionmentioning

confidence: 99%

“…The series resonant capacitor contributes to reduce turn-off current and avoid magnetic bias, while the bidirectional power flow and voltage regulation can be easily achieved with phase shift modulation [13]. The first harmonic approximation (FHA) method, where only the fundamental component of voltages and currents is considered, was commonly adopted to analyse the power transfer characteristics and switching behaviours of DABSRC [13][14][15][16][17][18][19]. The FHA modelling of DABSRC with SPS modulation was proposed in [13], where the converter was analysed with two modified AC equivalent circuits for both a voltage source load and a resistive load.…”

Section: Introductionmentioning

confidence: 99%

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Accurate frequency‐domain analysis and hybrid control method for isolated dual active bridge series resonant DC/DC converters

Wang

Zheng

et al. 2019

IET Power Electronics

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This study proposes an accurate frequency model of dual active bridge series resonant DC/DC converters (DABSRC). Differing from the conventional first harmonic approximation method, the proposed steady-state model considers all the harmonic components, which gives an accurate expression of transferred power and resonant current. Based on the proposed model, a precise soft switching criterion was derived, and the soft switching region was extended. On top of that, a hybrid control strategy combining phase shift modulation and frequency modulation was proposed, to achieve soft switching under wide voltage gain and load variations. Thanks to the extended soft switching region, DABSRC can achieve zero-voltageswitching turn-on at light loads, only with a slight increase in switching frequency, hence improving the efficiency a lot. The accurate frequency model and the hybrid control were validated using a 500 W laboratory prototype. The experiment results showed accurate predictions of the proposed model and significant improvements in light load efficiency over a wide range of input voltages.

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Fully Soft-Switched Dual-Active-Bridge Series-Resonant Converter With Switched-Impedance-Based Power Control

Cited by 62 publications

References 39 publications

Circuito de Auxílio à Comutação aplicado ao conversor DAB no Gerenciamento de Banco de Baterias

Circuito de Auxílio à Comutação aplicado ao conversor DAB no Gerenciamento de Banco de Baterias

A 10 kW ZVS Integrated Boost Dual Three-Phase Bridge DC–DC Resonant Converter for a Linear Generator-Based Wave-Energy System: Design and Simulation

Accurate frequency‐domain analysis and hybrid control method for isolated dual active bridge series resonant DC/DC converters

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