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Due to the emergence of renewable energy sources into the power system, the need for Energy Storage System (ESS) becomes more significant. Hence, parallel operation of Battery Energy Storage System (BESS) is an influential application in microgrids. The quazi Z source inverter (qZSI) is a single stage converter. It has two controllable DC ports which are connected with batteries. These batteries are charged by photovoltaic energy. This volatile nature leads to an unequal voltage and current supply to batteries. Hence a proper control strategy which is applicable to both islanded and grid connected mode is to be implemented in this proposed work. To execute this and to harvest maximum power from solar systems, the proposed control strategy, the Maximum Power Point Tracking (MPPT) schemes are employed. This will ensure maximal conversion efficiency. In this paper, implementation methodology and the …