Modeling and applications of space vector pulse width modulator

A space vector (SV) algorithm with pulse width modulation (PWM) has been analyzed, modeled and formed as a top-level hierarchical template for multiple use by the Saber simulator. The template incorporates a detecting scheme for determining the angular sector occupied by the space vector at a time, a time-base sweep scheme that decodes the switching pattern as well as the respective PWM duty cycle, a glitch-removal scheme, a combinational logic circuitry and blanking time circuits. The outputs of the template provide the driving signals for the power semiconductor devices in a space vector pulse width modulated (SVPWM) manner. The SVPWM model is used in applications including 3-phase AC-DC converter vector-controlled for unity power factor, and DC-AC inverters. The results from these applications confirm the validity of the SVPWM model