Design a dual active bridge converter with symmetrical dual phase-shift strategy

A bidirectional converter operated by dual phase-shift switching strategy is proposed. The advantages include two directions of power flow ability, a wide output voltage range, and zero voltage switching. In contrast with conventional single phase shift method, the proposed method is capable of decreasing the reactive power caused by cycling current. In order to verify the feasibility of the proposed idea, this paper implements a dual-active bridge converter with a maximum power 500W to verify the proposed idea. The experimental results show that it is indeed capable to achieve bidirectional energy transfer.