Dual active bridge DC-DC converter using both full and half bridge topologies to achieve high efficiency for wide load

2015 ◽  
Author(s):  
Hayato Higa ◽  
Shunsuke Takuma ◽  
Kouji Orikawa ◽  
Jun-ichi Itoh
Keyword(s):  
High Efficiency ◽  
Dual Active Bridge ◽  
Bridge Topologies

scholarly journals Variable DC-Link Voltage Control of Dual Active Bridge Converter in a Standalone Wind Power Generation System for High-Efficiency Battery-Discharging Operation

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6786
Author(s):  
Yuto Takayama ◽  
Hiroaki Yamada
Keyword(s):  
Power Generation ◽  
High Efficiency ◽  
Power Conversion ◽  
Voltage Control ◽  
Wind Power Generation ◽  
Generation System ◽  
Dual Active Bridge ◽  
Power Generation System ◽  
Simulation Results ◽  
Peak Value

In this study, we deal with a dual active bridge (DAB) converter-based battery charger in a standalone wind power generation system (WPGS) with a small-scale wind turbine. However, the power conversion efficiency under the low power output in the discharging mode is low. In this paper, we propose variable DC-link voltage control in a standalone WPGS with a DAB converter under a light load. The proposed control can compensate for the shortage of generated power and suppress the peak value of the transformer current. Simulation results demonstrate that the proposed control can decrease the peak value of the transformer current and improve the power conversion efficiency of the DAB converter. An experimental setup was constructed to confirm the basic operation of the variable DC-link voltage control. In addition, a reference DC-link voltage switchover control is proposed to enable a high-efficiency drive under all load ranges. From simulation results, the power loss can be reduced by the switchover control of the reference DC-link voltage.

High efficiency design for ISOP converter system with dual active bridge DC-DC converter

2016 ◽  
Author(s):  
Masaki Sato ◽  
Kazuhide Domoto ◽  
Yoichi Ishizuka ◽  
Shinya Manabe ◽  
Hiizu Okubo ◽  
...  
Keyword(s):  
High Efficiency ◽  
Dual Active Bridge

scholarly journals Control-Oriented Model of Photovoltaic Systems Based on a Dual Active Bridge Converter

2021 ◽  
Vol 13 (14) ◽  
pp. 7689
Author(s):  
Diego Alejandro Herrera-Jaramillo ◽  
Elkin Edilberto Henao-Bravo ◽  
Daniel González González Montoya ◽  
Carlos Andrés Ramos-Paja ◽  
Andrés Julián Saavedra-Montes
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Voltage Regulation ◽  
Pv System ◽  
Power Extraction ◽  
Pv Systems ◽  
Dual Active Bridge ◽  
Pv Module ◽  
Proposed Model ◽  
Voltage Conversion

Solar energy is a source of sustainable energy and its optimal use depends on the efficiency and reliability of PV systems. Dual active bridge converters are a solution to interface PV modules with the grid or high voltage requirement applications due to the high voltage-conversion-ratio and high efficiency provided by such a converter. The three main contributions of this work are: an extensive mathematical model of a DAB converter connected to a PV module including protection diodes, which is intended to design non-linear controllers, an explicit linearized version of the model, which is oriented to design traditional control systems; and a detailed and replicable application example of the model focused on maximizing the power extraction from a PV system. The modeling approach starts with the differential equations of the PV system; however, only the fundamental and average components of each signal is used to represent it. The control-oriented model is validated using a detailed circuital simulation. First, through the comparison of frequency and time diagrams of the proposed model and a detailed one; and then, through the simulation of the PV system in a realistic application case. PV voltage regulation and maximum power extraction are confirmed in simulation results.

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