Operation control apparatus for compressor and method thereof

An operation control apparatus for a compressor comprising:

• detecting means for detecting a current and a voltage which are applied to a compressor;
• a storing means for presetting a standard current value for preventing an overcurrent generated when the compressor initially starts, and storing the set standard current value;
• a comparing means for comparing the detected current value and the standard current value, and outputting a comparing signal corresponding to the comparing result;
• and
• a control means for cutting off a current applied to the compressor by turning off a current control means installed at the compressor by the comparing result, or for controlling a stroke voltage applied to the compressor by turning on/off the current control means at a certain period.

A method for controlling an operation of a compressor comprising:

• detecting a current applied to the compressor;
• comparing the detected current value and a preset standard current value;
• cutting off a current applied to the compressor by turning off a current control means installed at the compressor when the detected current value is greater than the standard current value;
• and
• when the detected current value is the same as or smaller than the standard current value, estimating a stroke of the compressor, and controlling a stroke voltage applied to the compressor by turning on/off the current control means at a certain period on the basis of the estimated value and the preset stroke standard current value.