Patent ID: 11879468
Assignee: CARRIER CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 11:
12. An air conditioning system, comprising:
a centrifugal compressor for compressing refrigerant within the air conditioning system;
an opening sensor for acquiring an inlet opening of the centrifugal compressor; and
a controller configured to perform the following, based on the inlet opening of the centrifugal compressor acquired by the opening sensor:
when the inlet opening of the centrifugal compressor is below a first preset value, shutting down a drive motor of the centrifugal compressor; or
when the inlet opening of the centrifugal compressor is not below the first preset value, performing the following operations in a preset order: decreasing the inlet opening of the centrifugal compressor, and increasing a rotational speed of the centrifugal compressor;
wherein the controller is further configured to dynamically decrease acceleration of the increasing rotational speed of the centrifugal compressor to 0 as the inlet opening of the centrifugal compressor decreases during the process of increasing the rotational speed of the centrifugal compressor.