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The Power-Based Control with Extended-Phase-Shift modulation for Dual Active Bridge DC-DC Converter

Along with the development of the renewable energy sources such as photovoltaic and fuel cell, the dual active bridge dc-dc converter has become more and more popular for establishing the dc microgrid. This paper proposes the power-based control (PBC) scheme with extended-phase-shift method for both boosting efficiency and the dynamic response when the input voltage and the load resistor is changed. Moreover, since the extended-phase-shift method can boost the efficiency of the dual active bridge converter, the proposed method can also achieve high efficiency. Based on the triple-phase-shift modulation method, the extended-phase-shift method can be realized, and by combining the PBC scheme, the hybrid control scheme can be achieved. Finally, based on a small-scale platform, experiment results can be used to verify the correctness of the proposed method.