3-D space vector PWM for three-leg four-wire voltage source inverters

Abstract

This paper presents a detailed discussion about the three-dimension (3-D) space vector pulse width modulation (SVPWM) for three-leg four-wire voltage source inverters (VSI). This subject appeared with the necessity of feeding nonlinear or unbalanced loads with sinusoidal or nonsinusoidal voltages and currents. Theory, application examples and implementation guidelines are shown.