Adaptive control for a refrigeration system using pulse width mo

Details Adaptive control for a refrigeration system using pulse width mo Adaptive control for a refrigeration system using pulse width mo

1997-09-29

2000-04-11

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

622283, 621963, 236 1EA, F25B 4902

Patent

active

060475579

ABSTRACT:
A control for a refrigeration system serviced by a special pulse width modulated compressor coupled to a condenser and evaporator. The system can be of the distributed type wherein the condenser and compressor may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator. A controller is coupled to a load sensor for producing a variable duty cycle control signal in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic techniques may be utilized in order to provide self adaptive tuning control for the system.

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