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Minimum Backflow Power and ZVS Design for Dual-Active-Bridge DC–DC Converters
IEEE Transactions on Industrial Electronics, 2023Junwei Liu, Zheng Dong, Fei Xu
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Optimal control of DAB converter backflow power based on phase-shifting strategy
Soft Computing, 2020In order to solve the problems such as high backflow power and current stress of bidirectional DC–DC converter under the traditional single phase-shifting control, an optimized dual phase-shifting control method is proposed. Compared with the conventional phase-shifting control, this method can not only reduce the loss of the converter but also ...
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To solve the problem of voltage imbalance at DC side of rectifier stage of the cascaded power electronic transformer, unbalanced transmission power of each DAB module at the isolation stage and power backflow of each DAB module. the paper, on the basis of analyzing the cause of power backflow, deduced the duty ratio at the minimum power backflow in the
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Minimum-Backflow-Power Scheme of DAB-Based Solid-State Transformer With Extended-Phase-Shift Control [PDF]
IEEE Transactions on Industry Applications, 2018 As key component for the flexible dc distributed power system, the dual active bridge (DAB)-converter-based solid-state transformer (SST) with high efficiency for a wide operating range is essential. However, with the traditional phase-shift control, high backflow power and current stress will significantly affect the conversion efficiency.
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Minimum Backflow Power Control of Bidirectional Isolated DC-DC Converters
2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018Bidirectional dual-active-bridge (DAB) DC-DC converter with the conventional single-phase-shift (SPS) control may cause large circulating current and high current stress. To overcome these drawbacks, extended-phase-shift (EPS) control can be used in order to improve the efficiency.
Huiqing Wen, Lin Zheng
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Optimal Design Method of LLC Half-Bridge Resonant Converter Considering Backflow Power Analysis
IEEE Transactions on Industrial Electronics, 2022LLC half-bridge converters have been extensively studied in low power industrial applications. However, the phase shift angle between the voltage and current of the LLC resonant network makes the converter have power circulation, that is, backflow power. The increase of the backflow power will increase the converter conduction loss, which restricts the
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Abstract Photovoltaic (PV) systems are subjected to lightning strikes that contribute to losing their sustainable electrification service. Furthermore, they are subjected to backflow lightning overvoltages due to the installation in high soil resistivity areas, however, such the study is not aforementioned well in the literature.
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