High efficiency modified dual-active bridge converter for photovoltaic integration

The penetration of distributed renewable energy resources especially photovoltaic (PV) panels is expected to increase over the next few decades. We propose a modified dual-active bridge dc-dc converter for integration of PV panels. The converter uses a novel switching scheme for its boost operation and enables power transfer from a low voltage port to a high voltage port. The converter operates in discontinuous conduction mode (DCM), simplifying control and achieving high efficiency results through soft switching. Analysis of converter along with simulation and experimental results are provided to validate the working of proposed converter design.