CONTROL METHOD FOR INVERTER REFRIGERATOR

摘要

PURPOSE: A method is provided to reduce noise and vibration of refrigerator by controlling rotational frequency of a compressor. CONSTITUTION: A method comprises a first step of starting operation of a compressor after a power is applied, a second step of operating the compressor for an oil supply, a third step of varying the rotational frequency of the compressor at a level lower than the normal rotational frequency during a reference time period so as to prevent a sudden change of load, and a fourth step of operating the compressor at a preset rotational frequency. Since the compressor is operated at a duty ratio fixed upon completion of oil supply, it is possible to suitably respond to a load change at a start of the compressor, thereby reducing noise and vibration of refrigerator.