公开(公告)号：US20220120486A1

公开(公告)日：2022-04-21

申请号：US17501026

申请日：2021-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Sanghyun KIM ,  Youngjin KIM ,  Jongcheol HWANG ,  Kwangsuk KO

IPC: F25B49/02 ,  F25B41/20

Abstract: A chiller system may include a compressor configured to compress a refrigerant by rotation; a condenser configured to condense the refrigerant compressed by the compressor; an expander configured to expand the condensed refrigerant; an evaporator configured to evaporate the expanded refrigerant; a sensor unit including a plurality of temperature sensors, a speed sensor that senses a rotational speed of the compressor, and a current sensor that senses a current of the compressor; and a controller configured to determine whether to enter into a surge detection logic based on a volatility of data sensed by the sensor unit, and configured to perform surge detection.