Method and control system for limiting compressor capacity in a refrigeration system upon a recycle start

摘要

A method and control system are disclosed for minimizing the number of recycle starts of a compressor in a refrigeration system to thereby reduce wear and tear on the mechanical and electrical systems of the refrigeration system thereby prolonging the operating life and improving the reliability of the refrigeration system. The rate at which the refrigeration system compressor's capacity is increased upon the recycle start is greatly reduced compared to a normal, relatively fast rate of increase which is provided when the capacity of the compressor is controlled directly in response to the load placed on the refrigeration system. This prevents the refrigeration system from quickly satisfying a new, increased load placed on the refrigeration system upon a recycle start which will then require a relatively quick shutdown of the refrigeration system compressor due to excess cooling capacity and require a relatively quick subsequent recycle start of the compressor. In this manner, the number of recycle starts is minimized.