Performance Optimization of a High Current Dual Active Bridge with a Wide Operating Voltage Range

  title={Performance Optimization of a High Current Dual Active Bridge with a Wide Operating Voltage Range},
  author={Florian Krismer and Simon D. Round and Johann Walter Kolar},
The main aim of this paper is to improve the performance of high current dual active bridge converters when operated over a wide voltage range. A typical application is for fuel cell vehicles where a bi-directional interface between a 12V battery and a high voltage DC bus is required. The battery side voltage ranges from 11V to 16V while the fuel cell is operated between 220V and 447V and the required power is typically 1kW. Careful analysis shows that the high currents on the battery side… 

Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application

The main reasons why the conventional method for converter analysis fails are described and the different steps required to predict the power losses more accurately are documents.

A Generalized Modulation Scheme for Soft Switched Dual Active Bridge Converter With Wide Voltage and Power Ranges

A new modulation scheme is proposed which allows higher power flow range without any limitation on the voltage gain, at the same time retaining majority of loss less switching properties similar to triangular modulation scheme, thus, improving converter power density significantly.

A Dual Active Bridge Converter With an Extended High-Efficiency Range by DC Blocking Capacitor Voltage Control

A Dual active bridge (DAB) converter can achieve a wide high-efficiency range when its input and output voltages are equal, assuming a 1:1 turns ratio for its isolation transformer. If its input or

High-Efficiency Bidirectional Three-Phase LCC Resonant Converter With a Wide Load Range

This paper details the design and implementation of an efficient 4-kW bidirectional converter with a wide load range, based on a three-phase LCC resonant converter operated in a continuous conduction

A Dual Active Bridge Topology with Increased Voltage Conversion Range

  • M. WattenbergM. Pfost
  • Engineering
    2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)
  • 2018
We present a dual active bridge topology suitable for wide voltage range applications covering all combinations of 200 V to 600 V on the input and 20 V to 60 V on the output with constant power of 1

Fundamental Duty Modulation of Dual-Active-Bridge Converter for Wide-Range Operation

This paper proposed a modulation scheme for the dual-active-bridge (DAB) converter to reduce rms current in wide-range operating conditions. The operating principle of the proposed fundamental duty

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A hybrid control algorithm for the entire operating region has been proposed and experimental results validating the scheme has been presented which shows asymmetric modulation to achieve a 4-10% higher efficiency as compared to the conventional method in similar operating region.

Optimized Operation of Current-Fed Dual Active Bridge DC–DC Converter for PV Applications

A design guideline for the CF-DAB converter applied to PV systems, as well as other applications with a wide input voltage variation, and an optimized operating mode is proposed to achieve the minimum root-mean-square transformer current.

Dual-Active-Bridge Isolated DC–DC Converter With Variable Inductor for Wide Load Range Operation

This article explores the use of a variable inductor as a reactive element for energy transfer in a dual-active-bridge (DAB) converter. By using a controlled variable inductor, the optimal switching

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This paper presents the design and implementation of a large-step-down soft-switched dc-dc converter based on the active bridge technique which overcomes some of the limitations of the conventional



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The analysis, control, and performance of a high-power, high-power-density DC/DC power converter that is based on the single-phase dual active bridge topology is described. For high-output voltages,

High-power galvanically isolated DC/DC converter topology for future automobiles

This paper presents a 2 kW three-phase dual active bridge converter (DAB3) which converts power between 42 V and 300 V and is easily scalable up to 20 kW. The DAB3 has been selected for this

Experimental evaluation of a soft-switching DC/DC converter for fuel cell vehicle applications

A soft-switched, isolated bi-directional DC/DC converter has been developed for fuel cell powered electric vehicles (FCPEV), in which the 12 V battery for the vehicle accessory loads is also used to

Symmetrical multilevel converters with two quadrant DC-DC feeding

In the technology sector of power electronics and control, the multilevel converter technology is still a rather new research area, but the application possibilities in the field of power drives and

Power MOSFETs: Theory and Applications

Principles of operation 1 - threshold voltage principles of operation 2 - static characteristics principles of operation 3: transient and high-frequency behavior fabrication and reliability

Understanding HEXFET switching performance

  • Power MOSFET Designer’s Manual, International Rectifier
  • 1987