Transient current control for a step load change in a dual‐active‐bridge converter

To deal with a command of step load change for a dual‐active‐bridge converter, a transient current control with a multi‐phase‐shift gating scheme is needed. By selecting a reference signal with a floating position, the effective transient current control can be achieved by moving multiple voltage edges in sequence, which would fulfil the step transition of the load level in a fast and smooth manner. Although the analysis is derived using triple‐phase‐shift schemes, the proposed control can also be applied to other multi‐phase‐shift schemes, such as extended‐phase‐shit and dual‐phase‐shift scheme. An experimental test validated the correctness and effectiveness of the proposed transient current control.