Active Switched-Network Modified Quasi-Z-Source Inverter

There are more advantages of single-state impedance source inverters (ZSIs) in comparison to the two-stage converter topologies which makes them more apt for the energy fields like solar photovoltaic systems and fuel cell systems that needs to lift the inverter bridge low input DC voltage to a sophisticated ac output voltage. In order to achieve high voltage gain, this work derives an active switch modified quasi-Z-source inverter (ASM-qZSI) with one active switch (S0), two diodes (D1, D2), two capacitors (C1, C2) and two inductors (L1, L2) in the impedance network and the boost factor of the derived topology is (1 − D)/(1 − 3D + D
²
). The anticipated ASM-qZSI provides the continuous input current, low inrush current and low switch stress. A reasonable analysis of the anticipated topology is done with the unadventurous topologies. The hypothetical investigation is confirmed with simulation results. This concept can be used for low power applications.