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
2020 ◽  
Vol 18 ◽  
pp. 327-332
Author(s):  
Szabolcs Veréb ◽  
◽  
András Futó ◽  
Zoltan Sutto ◽  
Attila Balogh ◽  
...  

2021 ◽  
Vol 19 ◽  
pp. 222-228
Author(s):  
Szabolcs Veréb ◽  
◽  
András Futó ◽  
Zoltán Süttö ◽  
Attila Balogh ◽  
...  

2013 ◽  
Vol 61 (4) ◽  
pp. 809-828 ◽  
Author(s):  
R. Barlik ◽  
M. Nowak ◽  
P. Grzejszczak

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.


2021 ◽  
Author(s):  
Michael Saegmueller ◽  
Christoph Hackl ◽  
Rolf Witzmann ◽  
Rene Richter

<div><div><div><p>This paper presents analytic solutions for an optimal modulation scheme featuring low switching losses for a bidirec- tional single-phase dual active bridge (DAB) DC-DC converter used for charging high-voltage batteries of electric vehicles. The proposed modulation scheme facilitates zero-voltage switching (ZVS) for either the primary- or secondary-side full bridge of the DAB converter throughout the whole operating range while maintaining low conduction losses. The expressions are derived based on the current required for an ideal ZVS transition and enable for a direct computation of the respective optimal modulation parameters.</p></div></div></div>


Sign in / Sign up

Export Citation Format

Share Document