High-Frequency Isolated Bidirectional Dual Active Bridge DC–DC Converters with Wide Voltage Gain by Deshang Sha & Guo Xu

High-Frequency Isolated Bidirectional Dual Active Bridge DC–DC Converters with Wide Voltage Gain by Deshang Sha & Guo Xu

Author:Deshang Sha & Guo Xu
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore


In comparison, ZVS region under different power transfer and different V1 voltage using hybrid control is shown in Fig. 5.9. For the hybrid control, it has two voltage matching points. One occurs at V1 = 1 pu and the other one occurs at V1 = 2 pu. When V1 is smaller than 1.5 pu, the converter works in full-bridge mode. Otherwise, the converter will work in half-bridge mode. Consequently, when V1 is changing from 1 to 1.5 pu, the non-ZVS region will increase, and the non-ZVS region will decrease when V1 changes from 1.5 to 2 pu. In view of the area of non-ZVS region, the area under SPS control is larger than the one using bridge control.

Fig. 5.9ZVS region combining full-bridge mode and half-bridge mode (hybrid control)



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