Dispersed spectrum switching of SVPWM for two level voltage source inverter

A new scheme of space vector pulse width modulation technique for two-level voltage source inverter is proposed. This technique comprises the exchange of zero vectors positions and the exchange of the active vectors positions in their sequence for each subsector. Simulation results indicate the voltage harmonics are dispersed over a wideband and that acoustic switching noise is minimized, also an improved total harmonic distortion was obtained by using the proposed scheme.