초록

An apparatus and method is provided for initializing and calibrating a microprocessor controlled refrigeration system including a centrifugal compressor having a variable width diffuser section.

대표청구항 ▼

In a method of controlling a centrifugal compressor in a refrigeration system that includes the steps of: providing a diffuser section in the compressor having a movable wall for varying of the width of the diffuser section, measuring predetermined system parameters, defining an optimum position of

In a method of controlling a centrifugal compressor in a refrigeration system that includes the steps of: providing a diffuser section in the compressor having a movable wall for varying of the width of the diffuser section, measuring predetermined system parameters, defining an optimum position of the movable wall at the measured system parameters, and moving the wall to the optimum position, the improvement comprising the steps of: providing a programmable device for controlling movement of the wall, determining when the position of the movable wall is unknown, causing the programmable device to move the wall to a known reference position, and calibrating the programmable device with the known position of the wall at the reference position.