Refrigerator and control method thereof

A control method of a refrigerator, the method comprising:

• a normal storage operation step of maintaining compartment temperatures of a first storage compartment and a second storage compartment within a satisfaction region while supplying cold air into the first storage compartment and the second storage compartment while performing the normal storage operation;
• a load operation step of performing a load operation in response to a start condition of the load operation being satisfied in response to a door being opened while the normal storage operation is being performed;
• an emergency operation confirmation step of confirming occurrence of an abnormal situation while at least the normal storage operation or the load operation is being performed;
• and
• an emergency operation step of performing an emergency operation according to the occurrence of the abnormal situation
• wherein the emergency operation step includes:
• a temperature checking step of checking the compartment temperatures of the first storage compartment and the second storage compartment in response to the abnormal situation occurring;
• a cooling power determination step of determining a cooling power for performing the emergency operation by considering the checked compartment temperatures of the first storage compartment and the second storage compartment;
• and
• an operation step of performing the emergency operation while controlling a compressor to operate with the determined cooling power.