The study of five-level inverters with the various PWM

Five-level cascaded H-bridge inverter for renewable energy applications

“…The author of the paper [8] presented a five-level inverter by using a reduced number of switches compared to the conventional five-level inverter, and it provides 23.83% THD on output voltage using the phase-disposition pulse width modulation (PD-PWM) technique. By using the hybrid PWM method (Hsin3w or Htrig3w) in the five-level inverter, the smallest THD is found with zero sequence sinewave shape of the modulating voltage compared to the phase opposition disposition (POD PWM) or alternative phase opposition disposition (APOD PWM) method [9]. The effect of the modulation index on THD of the five-level inverter is shown in [10].…”