Journal ArticleDOI
Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications
Florian Krismer,Johann W. Kolar +1 more
TLDR
An efficiency-optimized modulation scheme and design method are developed for an existing hardware prototype of a bidirectional dual active bridge (DAB) dc/dc converter, and the average efficiency rises from 89.6% to 93.5%.Abstract:
An efficiency-optimized modulation scheme and design method are developed for an existing hardware prototype of a bidirectional dual active bridge (DAB) dc/dc converter. The DAB being considered is used for an automotive application and is made up of a high-voltage port with port voltage V1, 240 V ≤ V1 ≤ 450 V, and a low-voltage port with port voltage V2, 11 V ≤ V2 ≤ 16 V; the rated output power is 2 kW. A much increased converter efficiency is achieved with the methods detailed in this paper: The average efficiency, calculated for different voltages V1 and V2, different power levels, and both directions of power transfer, rises from 89.6% (conventional phase shift modulation) to 93.5% (proposed modulation scheme). Measured efficiency values, obtained from the DAB hardware prototype, are used to verify the theoretical results.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
Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications
TL;DR: In this paper, the authors comprehensively review and classify various step-up dc-dc converters based on their characteristics and voltage-boosting techniques, and discuss the advantages and disadvantages of these voltage boosting techniques and associated converters.
Journal ArticleDOI
Closed Form Solution for Minimum Conduction Loss Modulation of DAB Converters
Florian Krismer,Johann W. Kolar +1 more
TL;DR: In this article, an optimal modulation scheme that enables minimum conduction and copper losses is presented for a bidirectional dual active bridge (DAB) dc-dc converter, which is employed for an automotive application.
Journal ArticleDOI
Extreme Fast Charging of Electric Vehicles: A Technology Overview
TL;DR: The benefits of using the solid-state transformers in the XFC stations to replace the conventional line-frequency transformers and a comprehensive review of the medium-voltage SST designs for the X FC application are considered.
Journal ArticleDOI
Power Characterization of Isolated Bidirectional Dual-Active-Bridge DC–DC Converter With Dual-Phase-Shift Control
Biao Zhao,Qiang Song,Wenhua Liu +2 more
TL;DR: In this paper, the authors gave the detailed theoretical and experimental analyses of the transmission power of the isolated bidirectional dual-active-bridge dc-dc converter under dual-phase shift (DPS) control.
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
Power Electronics and Motor Drives in Electric, Hybrid Electric, and Plug-In Hybrid Electric Vehicles
TL;DR: A brief review of the current trends and future vehicle strategies and the function of power electronic subsystems are described and the requirements of power electronics components and electric motor drives for the successful development of these vehicles are presented.
Journal ArticleDOI
Energy Storage Systems for Automotive Applications
TL;DR: This paper reviews state-of-the-art ESSs in automotive applications and hybrid power sources are considered as a method of combining two or more energy storage devices to create a superior power source.
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.
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