Qiang Ren, Fei Xiao, Jilong Liu, 等. Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(6):2434-2445.
Qiang Ren, Fei Xiao, Jilong Liu, et al. Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation[J]. CSEE Journal of Power and Energy Systems, 2024, 10(6): 2434-2445.
Qiang Ren, Fei Xiao, Jilong Liu, 等. Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(6):2434-2445.DOI: 10.17775/CSEEJPES.2021.02880.
Qiang Ren, Fei Xiao, Jilong Liu, et al. Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation[J]. CSEE Journal of Power and Energy Systems, 2024, 10(6): 2434-2445.DOI: 10.17775/CSEEJPES.2021.02880.
Efficiency Improvement and High-Performance Control of Dual-Active-Bridge DC-DC Converter with Triple-Phase-Shift Modulation
This paper analyzes the optimal switching modes of the dual-active-bridge (DAB) DC-DC converter to minimize losses in DC-DC converters that exhibit a wide voltage range
high efficiency
and high performance. By solving the multi-objective constrained conditional extremums with the Karush-KuhnTucker (KKT) method
a triple-phase-shift (TPS) optimal modulation with full range of operation
global continuity
and simple calculation is obtained. By adopting TPS modulation
the DAB can decrease reactive power when dc voltages are mismatched and obtain global optimization of conduction loss and soft-switching in the full range of operation. Generation of dc-offset current in the ac link is analyzed. Static and dynamic dc-offset currents are suppressed based on TPS modulation. With direct-power feed-forward
high-dynamic control is used to improve system response to external disturbances. The digital control strategy of the whole system is designed
and optimal modulation and high-performance control are verified on the experimental prototype.