Proceedings ArticleDOI
Extending the ZVS Operating Range of Dual Active Bridge High-Power DC-DC Converters
German G. Oggier,R. Ledhold,Guillermo O. Garcia,A.R. Oliva,Juan Carlos Balda,Fred Barlow +5 more
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TLDR
A novel pulse width modulation strategy to extend the conventional soft-switching operating mode region and its analysis are presented and Experimental results are given in order to validate the theoretical analysis and practical feasibility of the proposed strategy.Abstract:
A switching control strategy to extend the soft-switching operating range of the dual active bridge (DAB) dc-dc converter under the zero-voltage-switching (ZVS) operating mode is proposed. The converter topology consists of two active bridges linked by a high-frequency transformer. One drawback of this strategy is that soft-switching is only possible in a restricted converter operating region. A novel pulse width modulation strategy to extend the conventional soft-switching operating mode region and its analysis are presented in this paper. Experimental results are given in order to validate the theoretical analysis and practical feasibility of the proposed strategy.read more
Citations
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Journal ArticleDOI
Overview of Dual-Active-Bridge Isolated Bidirectional DC–DC Converter for High-Frequency-Link Power-Conversion System
TL;DR: In this paper, the dual-active-bridge (DAB) isolated bidirectional dc-dc converter (IBDC) serves as the core circuit of high frequency-link (HFL) power conversion systems.
Journal ArticleDOI
Eliminate Reactive Power and Increase System Efficiency of Isolated Bidirectional Dual-Active-Bridge DC–DC Converters Using Novel Dual-Phase-Shift Control
Hua Bai,Chunting Chris Mi +1 more
TL;DR: In this paper, a dual-phase-shift (DPS) control strategy for a dual active-bridge isolated bidirectional DC-DC converter is proposed, which consists of a phase shift between the primary and secondary voltages of the isolation transformer, and a phase shifting between the gate signals of the diagonal switches of each H-bridge.
Journal ArticleDOI
Switching Control Strategy to Minimize Dual Active Bridge Converter Losses
TL;DR: In this article, a switching control strategy to control the power flow and minimize the total power losses of the dual active bridge converter topology is proposed, which consists of driving the bridge with the largest DC voltage to generate a three-level pulsewidth-modulated (PWM) voltage waveform.
Journal ArticleDOI
Modulation strategy to operate the dual active bridge DC-DC converter under soft switching in the whole operating range
TL;DR: In this paper, a new modulation strategy that allows operating the dual active bridge (DAB) dc-dc converter under soft switching in the whole operating range is proposed, which is ruled by imposing a certain modulation index in one of the two bridges and a phase shift between the transformer primary and secondary voltages.
Journal ArticleDOI
Analysis and Design of High-Frequency Isolated Dual-Bridge Series Resonant DC/DC Converter
Xiaodong Li,Ashoka K. S. Bhat +1 more
TL;DR: In this article, a dual-bridge series resonant dc/dc converter with high frequency isolation is analyzed with two simple modified ac equivalent circuit analysis methods for both voltage source load and resistive load.
References
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Journal ArticleDOI
A three-phase soft-switched high power density DC/DC converter for high power applications
TL;DR: In this paper, three DC/DC converter topologies suitable for high power-density high power applications are presented, which operate in a soft-switched manner, making possible a reduction in device switching losses and an increase in switching frequency.
Journal ArticleDOI
Performance characterization of a high-power dual active bridge DC-to-DC converter
TL;DR: In this article, the performance of a high-power, high-density DC-to-DC converter based on the single-phase dual active bridge (DAB) topology is described.
Journal ArticleDOI
A comparison of high power DC-to-DC soft-switched converter topologies
TL;DR: In this paper, the authors compare the properties of several soft-switching converter topologies when used to achieve DC-DC conversion at high power and high voltage levels, and show that the switching frequency can be significantly higher than obtained using GTO devices, leading to smaller, lighter weight, and potentially more cost effective equipment.
Journal ArticleDOI
Design methodologies for soft switched inverters
TL;DR: In this paper, a detailed design methodology for soft switched inverters is presented and compared with the conventional hard-switched voltage-sourced inverter under identical load conditions, and a detailed enumeration of component design rules, switching loss calculations, and system optimization is presented.
Proceedings ArticleDOI
Power electronics in hybrid electric vehicle applications
TL;DR: In this article, the authors argue that the most economical solution to wide CPSR and overall performance of AC drives for hybrids rests on power electronics, and they describe the present situation and what efforts are underway, principally in transmission systems, to provide AC drives that are better matched to personal transportation vehicles.
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