An Improved the High Voltage Boost Inversion Ability of Switched Inductor Quasi ZSI by PWM Technique

This paper presents an improved the high voltage boost inversion ability of switched inductor quasi ZSI by using Boost PWM technique. This presents a comparative analysis of Boost Inversion Ability of Switched Inductor Quasi z-source inverter (SL-QZSI) with conventional z-source Inverter (ZSI). In comparison to conventional ZSI for the same value of voltages in the input and output the proposed SL-QZSI provides the less count on passive component a dc-source with common ground less voltage across the capacitors it gives the continuous input current current shoot through is reduced and also the current stress across the inductor and diodes are reduced. This thesis presents the operating principle boost inversion ability analysis simulation results and comparison of conventional ZSI with SLQZSI The simulation results confirmed the ability of high step up inversion by this proposed SL-QZSI. An extended switched inductor quasi z-source inverter (ESL-QZSI) with high boost voltage inversion ability is presented which combines the SL-QZSI with the traditional boost converter as well as improves the switched-inductor cell. Compared with the classic SL-QZSI topologies the proposed topology reduces the voltage stresses of capacitors power devices and diodes for the same input. The operation principle of the proposed topology is analyzed in detail. In addition, the performance of the proposed topology is verified by simulations and experiments.