Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals.
for full bridge conf.
igbt 1 has three pins (+)c1 e1c2 and g1
igbt 2 has three pins c2e1 e2(-) and g2
igbt 3 has three pins (+)c3 e3c3 and g3
igbt 4 has three pins c4e3 e4(-) and g4
c2e1 and c4e3 pins are AC output pins.
its name is igbt inverter.