The new approach minimizes harmonics in a single-phase three-level NPC 400 Hz converter for airplanes

<span lang="EN-US">This paper provides a new approach to reducing high-order harmonics in 400 Hz inverter using three-level neutral-point clamped (NPC) converter. A voltage control loop the harmonic compensation combined with NPC clamping diode technology. The capacitor imbalance also causes output voltage. For inverter, maintain balanced between two input (direct current) (DC) capacitors is difficult because pulse width modulation (PWM) frequency ratio low compared of method determining current flowing into on ensure fast response reversal given this paper. combination high-harmonic resonator controller and working together structure paper.</span>