Inverter control apparatus

An inverter control apparatus comprising:

• a converting unit which converts a commercial AC voltage into a DC voltage;
• an inverting unit which converts the DC voltage into an output AC voltage of a predetermined frequency by a pulse-width modulation system based on an assigned pulse width, and supplies the output AC voltage to an AC load;
• an instantaneous DC voltage detecting unit which detects an instantaneous value of the DC voltage;
• and
• a correcting unit which corrects the pulse width so as to maintain the output AC voltage at a desired value following a variation in a result of a detection by the instantaneous DC voltage detecting unit,
• wherein the correcting unit corrects the pulse width based on a result of
• multiplying a ratio of a preset reference voltage associated with the desired value of the output AC voltage to a detection result of the instantaneous DC voltage detecting unit, and a target voltage as a target value of the output AC voltage.