Space vector pulse width modulation for DC-AC converter

Abstract

This paper deals about the concept of space vector pulse width modulation for DC-AC converter. Converter used here is nothing but a three phase inverter. Six pulses are generated for triggering switching devices used in the inverter. Based on these pulses inverter is delivering its three phase output voltage in the load terminals. Star connected resistive and capacitive load is used here in the inverter output. Two sinusoidal signals are used as input for this svpwm unit. Svpwm technique is one of the most recent trends in the pulse generation. Compared to conventional pwm and sinusoidal pwm this svpwm generates the precise pulses which is required for the three phase inverters. This svpwm generates the pulses based on the sector formation. Moreover output voltage of this inverter is formed with the reduced value total harmonic distortion.