Space vector PWM based AC output voltage control of Z - source inverter

This paper aims to achieve the AC output voltage control of the Z-source inverter using space vector pulse width modulation (SVPWM). A novel switching pattern in the SVPWM is used in order to boost easily the capacitor voltage by controlling a shoot-through time. The possible operating region for obtaining the desired AC output voltage to DC input voltage is analyzed. A novel modified SVPWM technique is presented to distribute the shoot-through into the zero vectors without compromising the active space vector. Simulation results based on the design are presented, using the proposed SVPWM control strategy. PSIM software is used for simulation studies.