In order to realize more optimized current stress of switches and soft switching in a wider range, this paper proposes a unified high-frequency AC buck/boost (UHFBB) control strategy for dual active-bridge bidirectional converter (DAB-BDC). The evolution of UHFBB theory is derived from buck and boost DC/DC converter operated in DCM. A multi-variable solving method is proposed to achieve the duty ratios for driven signals modulation. The calculation flow chart is given, which is the basis for the closed-loop control. The analysis is verified by the experimental results from a 500W prototype.
Dual active full-bridge bidirectional converter for V2G charger based on high-frequency AC buck-boost control strategy
2016-06-01
1987675 byte
Conference paper
Electronic Resource
English
Double-Loop Control Strategy for Buck/Boost-CLLLC Two-Stage Bidirectional DC/DC Converter
Springer Verlag | 2020
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