Overview of Dual-Active-Bridge Isolated Bidirectional DC–DC Converter for High-Frequency-Link Power-Conversion System
TLDR
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.Abstract:
High-frequency-link (HFL) power conversion systems (PCSs) are attracting more and more attentions in academia and industry for high power density, reduced weight, and low noise without compromising efficiency, cost, and reliability. In HFL PCSs, dual-active-bridge (DAB) isolated bidirectional dc-dc converter (IBDC) serves as the core circuit. This paper gives an overview of DAB-IBDC for HFL PCSs. First, the research necessity and development history are introduced. Second, the research subjects about basic characterization, control strategy, soft-switching solution and variant, as well as hardware design and optimization are reviewed and analyzed. On this basis, several typical application schemes of DAB-IBDC for HPL PCSs are presented in a worldwide scope. Finally, design recommendations and future trends are presented. As the core circuit of HFL PCSs, DAB-IBDC has wide prospects. The large-scale practical application of DAB-IBDC for HFL PCSs is expected with the recent advances in solid-state semiconductors, magnetic and capacitive materials, and microelectronic technologies.read more
Citations
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Journal ArticleDOI
A Simple Power Estimation With Triple Phase-Shift Control for the Output Parallel DAB DC–DC Converters in Power Electronic Traction Transformer for Railway Locomotive Application
TL;DR: Through executing the current stress optimization (CSO) and introducing the power estimation based on operational parameters, the efficiency of converters can be further improved and the power balance among DAB cells can be achieved over the whole power range without adding extra sensors to sample the output/inductor current of each cell.
Journal ArticleDOI
High-Speed Electromagnetic Transient (EMT) Equivalent Modelling of Power Electronic Transformers
TL;DR: A general high-speed equivalent EMT modelling method of PET and the developed PET models on PSCAD/EMTDC are shown to be two orders of magnitude faster than the currently available fully-detailed models with negligible loss of accuracy.
Proceedings ArticleDOI
Sliding-Mode-Based Direct Power Control of Dual-Active-Bridge DC-DC Converters
TL;DR: A sliding-mode-based direct power controller for the power flow control of DAB converters that exploits both the advantages of sliding- mode control and direct power control, thus leading to accurate reference tracking, fast dynamic response, large-signal stability, and high robustness against line and load disturbance.
Journal ArticleDOI
Trapezoidal Current Modulation for Bidirectional High-Step-Ratio Modular DC–DC Converters
TL;DR: A trapezoidal current modulation with bidirectional power flow ability is presented to optimize the performance of the modular dc–dc converter by giving all the submodule (SM) capacitors an equal duty to withstand the stack dc voltage.
Journal ArticleDOI
Deadband Effect and Accurate ZVS Boundaries of GaN-Based Dual-Active-Bridge Converters With Multiple-Phase-Shift Control
Haochen Shi,Huiqing Wen,Yihua Hu +2 more
TL;DR: In this paper, a comprehensive theoretical analysis and experimental verification of the deadband effect in the GaN-based dual-active-bridge (DAB) converters with multiple-phase shift (MPS) control is presented.
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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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