Analytical evaluation of five level inductor coupled inverter topologies

Abstract

Impedance source inverter has be en proposed peculiar converter with both Voltages boost and buck capability. Now withstanding the general property, the Z-source inverters have the limitations of requirement for lower modulation index at higher voltage gain which gives high dc link voltage but results high voltage stress in semiconductor switch, high starting inrush currents due to resonance at starting. To diminish these impacts, magnetic couple inductors are analyzed to boosted gain, modulation ratio concurrently, while diminishing the number of semiconductor switches required. This ρ aper presents performance analysis of different five level magnetic coupled impedance source inverter topologies using simple boost pwm technique using Matlab / Simulink.