Simulink model of flying capacitor multilevel inverter

In this paper a method for modelling and simulation in Simulink/Matlab environment of the flying capacitor multilevel inverters is presented. The model is used for the harmonic analysis of the output voltage of the inverter when different PWM strategies are utilized. Under investigation are those strategies that solve the capacitor voltage balancing problem: phase-shift PWM method, the saw-tooth rotation PWM method and carrier redistribution PWM method. The results are shown through simulation.