Three-Phase Inverter Performance Based on Sinusoidal Pulse Width Modulation

Abstract

This study describes a novel type of sinusoidal PWM inverter that may be used with power MOSFETs. The suggested PWM inverter's output waveforms are examined theoretically and empirically. Compared to a traditional sine-wave inverter, the three-phase line-to-line voltage's basic component is raised by around 15%. One may regulate both the output voltage's frequency and magnitude using the sinusoidal PWM switching approach. Because of this, an unregulated, very constant dc voltage source serves as the PWM inverters' input. This switching approach produces harmonic voltage that is readily filtered out and falls within the switching frequency range and beyond. Several carrier-based modulation approaches for complete bridge inverters are proposed in this paper.