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Showing 1 to 13 of 13 for “"dual active bridge (DAB)"”.
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A flying capacitor multilevel dual-active bridge converter for interfacing high voltage in more-electric aircraft
… with low-voltage buses and storage. While the dual-active bridge (DAB) converter has traditionally served this role, its reliance on single high-voltage devices constrains achievable switching frequency, resulting in bulky magnetics. The addition of a flying-capacitor multilevel (FCML) …
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Modelling and real-time simulation of a modular bidirectional solid-state transformer for ultra-fast charging of electric vehicles
… power conversion solution with a Cascaded H-Bridge (CHB) rectification stage followed by a Dual Active Bridge (DAB) conversion stage. Control strategies and modulation schemes are implemented to achieve voltage balance and unity power factor, and to mitigate current harmonics and voltage …
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Design and evaluation of a reconfigurable stacked active Bridge dc/dc converter for efficient wide load-range operation
… soft-switched dc-dc converter based on an active bridge topology which overcomes some of the limitations of the conventional dual-active bridge (DAB). The topology comprises a double-stacked bridge inverter, coupled to a recongurable rectifier through a special three-winding leakage …
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Evaluation and Development of Medium-Voltage Converters Using 3.3 kV SiC MOSFETs for EV Charging Application
… power-delivery solution utilizing an MV dual-active-bridge (DAB) converter. The proposed architecture is designed to directly interface with the MV grid for high-power, fast-charging capabilities while eliminating the need for an installation of the MV-LV transformer. The MV DAB converter …
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Design and Control of a Compact 7.2 kW GaN-Based Bidirectional Isolated On-Board Charger (OBC)
… scheme is proposed for non-resonant isolated Dual Active Bridge (DAB) converters. This method achieves full Zero Voltage Switching and 75% quasi-Zero Current Switching across a wide range of input and output voltages while minimizing inverse power flow and significantly reducing di/dt in power …
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Isolated Bi-directional DC-DC Converter with Smooth Start-up Transition
… loads in the house such as home appliances. The dual active bridge (DAB) converter is very useful because of its high power capability and efficiency. Its symmetry is effective in transferring power in both directions. However, the DAB converter has drawbacks in the start-up stage. These …
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Design, Modeling and Analysis of an AC-AC Dual Active Bridge Converter
… greater energy density have made the SST an attractive option. Among various power electronic converter topologies, the Dual Active Bridge (DAB) has become popular for its bidirectional power flow capability and galvanic isolation, primarily in the DC application space. Advancements in …
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Power electronic transformers for AC-AC and AC-DC conversion with reduced number of switches
… power conversion. This converter operates on the Dual Active Bridge (DAB) principle wherein the transformer leakage inductance is used for power transfer. Hence, this converter does not suffer from problems associated with leakage energy commutation and additional snubber circuits are not required …
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High Frequency Isolated Power Conversion from Medium Voltage AC to Low Voltage DC
… frequency high power DC/DC converter topology dual active bridge (DAB) is introduced and compared with novel CLLC resonant converter in terms of switching loss and conduction loss point of view. CLLC holds ZVS capability over all load range and smaller turn off current value. This is beneficial …
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DC-DC converter designs for medium and high voltage direct current systems
… of this thesis. The modular multilevel design of dual active bridge (DAB) converters is analysed in light of state-of-the-art research in the field. The multilevel DAB structure is meant to serve medium and high voltage applications. The modular design facilitates scalability in terms of …
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Design and analysis of current stress minimalisation controllers in multi-active bridge DC-DC converters.
Multi active bridge (MAB) DC-DC converters have attracted significant research attention in power conversion applications within DC microgrids, medium voltage DC and high voltage DC transmission systems. This is encouraged by MAB's several functionalities such as DC voltage stepping/matching, …
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Customisable Magnetic Components Using Nanocrystalline Flake Ribbon
… the built transformers in a 5.5 kW, 100 kHz dual active bridge (DAB) converter. Loss-separation is performed by measuring the core losses and conduction losses individually, and possible errors are analysed in detail for the loss measurement. Additionally, the transformer losses during the …
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Análisis, diseño y construcción de un proveedor de bus para sistemas de distribución en corriente continua domésticos
… En el Capítulo 4 se realiza un estudio del Dual Active Bridge (DAB) de forma análoga al que se hace para el convertidor reductor síncrono. En este capítulo se estudian en primer lugar las características del DAB y su mecanismo de conmutación suave. Se propone una modificación del …