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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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2018 Chinese Automation Congress (CAC), 2018
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
Shujian Chen +3 more
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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
Shujian Chen +3 more
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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 ...
Jinhui Zeng +4 more
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Total Backflow Power Minimization for Dual Active Full Bridge DC-DC Converters in Parallel
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia), 2021Aimed at the input parallel and output parallel (IPOP) dual-active bridge (DAB) dc-dc converters, this paper proposes an unbalanced-power-distribution scheme (UPDS) that considers the practical parameter deviation between DAB converters for minimizing the total backflow power.
LinXiao Gong +5 more
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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
Zhe Shi +4 more
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IEEE Transactions on Industrial Electronics, 2022
Different from the conventional photovoltaic (PV) inverters, a three-phase PV solid-state transformer (SST) based on the cascaded H-bridge (CHB) topology can be regarded as consisting of three single-phase CHB inverters in essence. During the low-voltage ride through (LVRT), some phases of three-phase PV SST may inversely absorb active power from ac ...
Tao Zhao, Daolian Chen
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Different from the conventional photovoltaic (PV) inverters, a three-phase PV solid-state transformer (SST) based on the cascaded H-bridge (CHB) topology can be regarded as consisting of three single-phase CHB inverters in essence. During the low-voltage ride through (LVRT), some phases of three-phase PV SST may inversely absorb active power from ac ...
Tao Zhao, Daolian Chen
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A Backflow Power Optimization Method for Three-Level ANPC-DAB Converter
2023 IEEE 2nd International Power Electronics and Application Symposium (PEAS), 2023Haotian Deng +4 more
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2019 22nd International Conference on Electrical Machines and Systems (ICEMS), 2019
This paper for full-bridge three-level bidirectional DC-DC converters presents a dual PWM phase shift（DPWMPS）control method. By analyzing the converter works which used the above control method, the system performance is divided into the six operation modes.
Keyu Pan +4 more
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This paper for full-bridge three-level bidirectional DC-DC converters presents a dual PWM phase shift（DPWMPS）control method. By analyzing the converter works which used the above control method, the system performance is divided into the six operation modes.
Keyu Pan +4 more
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Power Backflow and Efficiency Analysis of IBDC Control Techniques with Simulation
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2022Nidhi Chandrakar +2 more
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2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018
A set of pricing method of provincial transmission and distribution network in various voltage levels is proposed in this paper, considering the power backflow caused by a large number of new energy access. Aiming at the complex power transmission relationship between different voltage levels in the case of power backflow in the provincial power ...
Zevuan Shen +8 more
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A set of pricing method of provincial transmission and distribution network in various voltage levels is proposed in this paper, considering the power backflow caused by a large number of new energy access. Aiming at the complex power transmission relationship between different voltage levels in the case of power backflow in the provincial power ...
Zevuan Shen +8 more
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