[IEEE 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) - Bengaluru, Karnataka, India (2012.12.16-2012.12.19)] 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) - A space vector PWM signal generation for Z-source inverter using only sampled amplitudes of reference phase voltages with a unified method to implement different shoot through strategies