公开(公告)号：WO2020167666A1

公开(公告)日：2020-08-20

申请号：PCT/US2020/017513

申请日：2020-02-10

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： CHRETIEN, Ludovic Andre ,  GOLM, JR., Norman C.

IPC: F25B1/10 ,  F04D27/00 ,  F25B49/02

Abstract: An HVAC system including a multi-capacity compressor, and a control system for the multi-capacity compressor are described herein. The control system includes an AC line voltage source, a variable-voltage variable-frequency drive, and a processor. The AC line voltage source is configured to operate the multi-capacity compressor. The variable-voltage variable-frequency drive is coupled to the AC line voltage source and is configured to operate the multi-capacity compressor at a variable speed. The processor is coupled to the AC line voltage source and the variable-voltage variable-frequency drive, and is configured to selectively couple the AC line voltage source and the variable-voltage variable-frequency drive to the multi-capacity compressor to operate the multi-capacity compressor. The processor is further configured to transmit a capacity control signal to the multi-capacity compressor. The capacity control signal is instructive to operate the multi-capacity compressor in one of a plurality of capacity settings.