Refrigerator with a variable speed compressor and a method for controlling the compressor speed

A refrigerator (100;

• 110) comprising
• a compartment (13a) for storing foodstuff,
• a cooling system (200;
• 210) comprising an evaporator (12a);
• a condenser (14) and a variable speed compressor (10), the cooling system (200;
• 210) being adapted to go through a refrigeration cycle at certain intervals;
• a control system (11) is configured to control the variable speed compressor (10) during the refrigeration cycle based on values of a minimum speed (36) and a required speed (22), whereby
• when the minimum speed (36) is lower than the required speed (22) then the control system (11) is configured to set the compressor speed (35) to a speed value equal to the required speed (22);
• and
• when the minimum speed (36) is higher than the required speed (22) then the control system (11) is configured to set the compressor speed (35) to a speed value equal to the minimum speed (36);
• and
• wherein the control system (11) is configured to set an actual speed of the variable speed compressor (10) to the speed value.