A Novel Non-isolated Double Switch Quasi-ZSource High Gain DC-DC Converter

This paper presents a novel Double Switch Quasi-Z-source (DSQZS) high-gain DC-DC converter for renewable energy applications. This converter obviates the need for a transformer, thereby enhancing cost-effectiveness and minimizing system dimensions. By employing a switched capacitor cell with a quasi-z source network, the converter achieves substantial voltage gain. The comprehensive analysis and parameter optimization ensure high efficiency. Moreover, the converter’s common ground configuration not only simplifies the overall system but also reduces output voltage ripple. The proposed topology has undergone rigorous theoretical analysis and simulation using the PSIM software tool. A 400W/200V model is used in the simulation for satisfactory results.