Analysis of the Dual Active Bridge-Based DC-DC Converter Topologies, High-Frequency Transformer, and Control Techniques

Abstract

A power conversion system needs high efficiency for modern-day applications. A DC–DC isolated bidirectional dual active bridge-based converter promises high efficiency and reliability. There are several converter topologies available in the market claiming to be the best of their type, so it is essential to choose from them based on the best possible result for operation in a variety of applications. As a result, this article examines the characteristics, functionality, and benefits of dual active bridge-based DC–DC converter topologies and the other members of the family, as well as their limits and future advances. A high-frequency transformer is also an important device that is popular due to high leakage inductance in dual active bridge (DAB) converters. Therefore, a detailed review is presented, and after critical analysis, minimized leakage inductance in the toroidal transformer is obtained using the ANSYS Maxwell platform. Furthermore, this work includes a comprehensive examination of the control approaches for DAB converters, which is important for selecting the most appropriate technique for a certain application. The outcome of ANSYS Maxwell is integrated with a DAB-based boost inverter in the MATLAB/Simulink environment, and the results are validated with the help of an experimental prototype.

Current ripple optimization design of DC/DC converter

“…The multiple parallel circuit structure can effectively reduce the voltage ripple, it also overcomes the problems of the high-power converter, such as too large volume of a single inductor, which cannot be met by a single high voltage component in a current quota and power consumption quota [10]. Each heavy circuit uses the same parameter electrical components, as far as possible to ensure the symmetry of the circuit [7][8].…”

Analytical Selection of Leakage Inductance for Single-Phase Dual Active Bridge Converters

“…It can be observed from Equations (1), (2), and (4) that the voltage on the primary and secondary sides of the transformer, as well as the inductor current, can be represented as infinite summations of odd sinusoids. The first, third, and fifth harmonics of the primary side voltage (vpr1(t), vpr3(t), and vpr5(t)) alongside corresponding harmonics of the inductor current (ile1(t), ile3(t), and ile5(t)) are graphically depicted in Figure 3.…”

“…Research interest in DC/DC converters has surged recently, largely driven by their application in electric vehicle technologies [1]. The dual active bridge (DAB) converter is particularly popular among different DC/DC converter topologies because it can manage power flow in both directions [2]. It also offers several benefits, such as high power density, galvanic isolation, and high efficiency, making it an excellent option for various power conversion scenarios [3][4][5].…”

Research on Magnetic-Thermal-Force Multi-Physical Field Coupling of a High-Frequency Transformer with Different Winding Arrangements

“…The structure of the isolated bidirectional active bridge DC-DC converter based on phase shift control is shown in Figure 9. The duty ratio of the inverter output square wave voltage is 50% [25,26]. MATLAB Simulink is used to build the DAB circuit, and the non-sinusoidal excitation waveform is shown in Figure 10.…”