scholarly journals Two-Stage Modulation Study for DAB Converter

Electronics ◽  
2021 ◽  
Vol 10 (21) ◽  
pp. 2561
Author(s):  
Pablo Guzmán ◽  
Nimrod Vázquez ◽  
Marco Liserre ◽  
Rodolfo Orosco ◽  
Sergio Enrique Pinto Castillo ◽  
...  
Keyword(s):  
Phase Shift ◽  
Output Voltage ◽  
Single Phase ◽  
Two Stage ◽  
Dual Active Bridge ◽  
Input And Output ◽  
Multiple Variable ◽  
Displacement Angle ◽  
Multi Phase

The dual active bridge (DAB) is a dc/dc converter frequently employed in multiple applications due to its advantages of isolation, power flexibility, and input and output voltage defined by design. Different multi-phase modulations have been reported to increase DAB efficiency and reduce components stress but, certainly, the control and implementation complexity increases with every displacement angle added because of the multiple variable measurements. This paper presents two-stage modulations based on the single phase-shift (SPS), which allows maintaining simplicity while improving the efficiency of the DAB converter depending on the design conditions. The paper also gives a direction for selecting the proper modulation to achieve the best efficiency for each situation. The different two-stage modulations are described, analyzed, and experimentally tested.

A Three-Level Quasi-Two-Stage Single-Phase PFC Converter with Flexible Output Voltage and Improved Conversion Efficiency

2015 ◽  
Vol 30 (2) ◽  
pp. 717-726 ◽  
Author(s):  
Yi Tang ◽  
Dexuan Zhu ◽  
Chi Jin ◽  
Peng Wang ◽  
Frede Blaabjerg
Keyword(s):  
Conversion Efficiency ◽  
Output Voltage ◽  
Single Phase ◽  
Two Stage

Hybrid modulation scheme for dual active bridge converter that employs the triangular modulation and the single phase shift modulation

2016 ◽  
Vol 44 (11) ◽  
pp. 1982-2002 ◽  
Author(s):  
Yunpeng Yao ◽  
Shen Xu ◽  
Weifeng Sun ◽  
Shengli Lu
Keyword(s):  
Phase Shift ◽  
Single Phase ◽  
Modulation Scheme ◽  
Hybrid Modulation ◽  
Dual Active Bridge

scholarly journals Adaptive dead time compensation for cross-period single phase shift control of dual active bridge converters

2020 ◽  
Vol 18 ◽  
pp. 327-332
Author(s):  
Szabolcs Veréb ◽  
◽  
András Futó ◽  
Zoltan Sutto ◽  
Attila Balogh ◽  
...  
Keyword(s):  
Phase Shift ◽  
Single Phase ◽  
Dead Time ◽  
Dual Active Bridge ◽  
Shift Control ◽  
Dead Time Compensation

scholarly journals Continuous cross-period single phase shift control for dual active bridge converters

2021 ◽  
Vol 19 ◽  
pp. 222-228
Author(s):  
Szabolcs Veréb ◽  
◽  
András Futó ◽  
Zoltán Süttö ◽  
Attila Balogh ◽  
...  
Keyword(s):  
Phase Shift ◽  
Single Phase ◽  
Dual Active Bridge ◽  
Shift Control

Power transfer analysis in a single phase dual active bridge

2013 ◽  
Vol 61 (4) ◽  
pp. 809-828 ◽  
Author(s):  
R. Barlik ◽  
M. Nowak ◽  
P. Grzejszczak
Keyword(s):  
Phase Shift ◽  
Single Phase ◽  
Semiconductor Devices ◽  
Switching Frequency ◽  
Preliminary Evaluation ◽  
Power Transfer ◽  
Power Losses ◽  
Dual Active Bridge ◽  
Voltage Drops ◽  
High Switching Frequency

Abstract This paper presents an analysis of the power transfer between two DC circuit by use a single phase galvanically isolated dual active bridge - DAB. The analytical description of instantaneous values of the currents in both DC and in AC circuits of the DAB is done. The influence of the dead time as well as voltage drops across the transistors and diodes of the bridges is examined. The different relations between voltages of the DC circuits coupled through DAB and various phase shift ratios are considered. The analytical relations describing the average values of the currents in DC circuits are derived. These currents can be used to predict the power in both DC circuits and power losses generated in semiconductor devices of the converter. It is assumed that the voltage drops across these devices in conduction states are constant. The calculation of the transferred power as well as power losses and energy efficiency for the DAB converter power rated 5600 VA which is used to energy transfer between DC circuits 280 V and 51 V±20% is presented. The proposed relations and calculation results can be useful for preliminary evaluation of power losses generated in semiconductor devices and for design of the cooling system. Due to the high switching frequency of 100 kHz, the phase shift modulation for the control of DAB is used. To validate the theoretical investigations a few experimental results are presented.

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