Operation, design and control of dual H-bridge-based isolated bidirectional DC–DC converter

Mi, Chris; Bai, Hua; Wang, C.; Gargies, Sonya

doi:10.1049/iet-pel:20080004

Cited by 349 publications

(139 citation statements)

References 20 publications

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“…Although (13) stated that the phase must be negative, the phase is set to zero to avoid a discontinuous modulation strategy (26) . Therefore, the hard-switching will still occur in the interval 1.…”

Section: Cpwm Equationmentioning

confidence: 99%

Combined Pulse-Width Modulation of Dual Active Bridge DC-DC Converter to Increase the Efficiency of Bidirectional Power Transfer

Malek

Takaba

2018

IEEJ Journal IA

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A dual active bridge (DAB) dc-dc converter is suitable for bidirectional high-power transfer. However, it has a limited soft-switching range and a high peak current during low power transfer with traditional phase-shift modulation (PSM) when there is a variation in the input/output voltage. To overcome solve this difficulty, this paper proposes a new modulation strategy, combined pulse-width modulation (CPWM) which combines single pulse-width modulation (SPWM) and dual pulse-width modulation (DPWM), with a unified fundamental phase ϕ f for a wide power transfer range. Unlike previous modulation strategies, CPWM is applicable for bidirectional power transfer. In order to combine SPWM and DPWM, this study comprehensively analyzes the soft-switching range and the peak current of PSM, SPWM, and DPWM. The CPWM strategy is experimentally tested using a 1.6 kW prototype to verify the improvement in efficiency and its bidirectional power transfer capability. The experimental results show efficiencies of both positive and negative power transfers were improved by using CPWM.

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Section: Cpwm Equationmentioning

confidence: 99%

Combined Pulse-Width Modulation of Dual Active Bridge DC-DC Converter to Increase the Efficiency of Bidirectional Power Transfer

Malek

Takaba

2018

IEEJ Journal IA

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“…3. The coupling inductance which is sum of the leakage inductance in the transformer and the external inductance acts as an energy transfer device [10][11][12][13][14].…”

Section: Operation Principles Of the Dab Convertermentioning

confidence: 99%

Practical Design of Dual Active Bridge Converter as Isolated Bi-directional Power Interface for Solid State Transformer Applications

Choi¹,

Jung²

2016

Journal of Electrical Engineering and Technology

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-As a bi-directional isolated interface for solid state transformer applications, practical design considerations of a dual active bridge (DAB) converter are proposed by means of a detailed mathematical model based on the converter's steady state operations. The DAB converter is useful in isolated bi-directional power conversion applications due to high performance, high efficiency, and bidirectional control manner. However, design considerations should be taken into account to overcome the disadvantages of DAB converter, such as low efficiency caused by restricted soft switching capability at light load conditions and high circulating current at heavy load conditions. The practical design considerations of the converter's power stage will be discussed to maximize soft switching capability and to minimize the conduction losses. In addition, to reduce the current stress of the power devices during a cold start sequence, an effective soft start algorithm will be proposed. Experimental results with a 3.3 kW prototype DAB converter will be given in order to validate the effectiveness of the proposed design considerations.

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“…This type of control is not difficult to implement and a lot of work has been done on this. A detailed study and design of the DC/DC dual active bridge converter has been done in [10], [11]. In short, by varying the phase shift between the secondary voltage and the primary voltage of the transformer, the direction and the amplitude of the current passing through the leakage inductance is controlled [12].…”

Section: A Isolated Ac/dc/dc/ac Cell Architecturementioning

confidence: 99%

A review of power converter topologies with medium/high frequency transformers for grid interconnection systems

Nasir

Rivera

Toledo

et al. 2016

2016 IEEE International Conference on Automatica (ICA-ACCA)

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Abstract-In recent years, power electronics has evolved dramatically due to their importance in power extracted management from renewable sources. In this paper an overview of grid interconnection systems with galvanic isolation is presented. The most common used topologies from AC/AC, AC/DC, DC/AC and AC/AC conversion are analyzed y summarized in order to provide a good understanding of the existing technologies.

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Operation, design and control of dual H-bridge-based isolated bidirectional DC–DC converter

Cited by 349 publications

References 20 publications

Combined Pulse-Width Modulation of Dual Active Bridge DC-DC Converter to Increase the Efficiency of Bidirectional Power Transfer

Combined Pulse-Width Modulation of Dual Active Bridge DC-DC Converter to Increase the Efficiency of Bidirectional Power Transfer

Practical Design of Dual Active Bridge Converter as Isolated Bi-directional Power Interface for Solid State Transformer Applications

A review of power converter topologies with medium/high frequency transformers for grid interconnection systems

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