APPARATUS FOR COMPENSATING FOR RIPPLE AND OFFSET OF INVERTER, AND METHOD THEREFOR

摘要

The present invention relates to an apparatus for compensating for a ripple and offset of an inverter and a method thereof, and more particularly, to an apparatus for compensating for a ripple and offset of an inverter which removes a ripple component by compensating for an offset component included in a signal that is input to the inverter from an inverter controller and a method thereof. Examples of a method of compensating for an offset in a signal for controlling an inverter in the present invention include: a method that senses a direct current (DC) that is input to an inverter from an inverter controller and an alternating current (AC) that is output from the inverter and removes a ripple component that is included in the DC based on the sensed currents; a method that removes a ripple component that is included in a reference voltage that is output from an inverter controller and is input to an inverter; and a method that compensates for an offset component of an AC voltage/AC that is used for inverter control and reduces a ripple component corresponding to an output frequency of an inverter.