Effect of Active Time Adjustment in Space Vector Pulse Width Modulation Strategy

This paper deals with space vector pulse width modulation (SVPWM) which is one of the most popular techniques to control the inverter power switches. SVPWM is the implementation of space vector as modulating wave along with a carrier wave. In direct SVPWM the switching time is directly calculated from active and zero time equations and in modified SVPWM we increase the active times from above equations by simultaneously decreasing the zero state times. Thus direct SVPWM and modified SVPWM techniques are carried using MATLAB/ simulink for a 3 phase Voltage source inverter (VSI) and result is tabulated.