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1. (WO2018006597) METHOD OF ADJUSTING ELECTRONIC EXPANSION VALVE OF AIR-CONDITIONER

Pub. No.:    WO/2018/006597    International Application No.:    PCT/CN2017/073139
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Fri Feb 10 00:59:59 CET 2017
IPC: F25B 49/02
Applicants: QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
青岛海尔空调器有限总公司
Inventors: XU, Wenming
许文明
FU, Yu
付裕
ZHANG, Mingjie
张明杰
WANG, Fei
王飞
XU, Beibei
徐贝贝
LIU, Juke
刘聚科
LUO, Rongbang
罗荣邦
YUAN, Junjun
袁俊军
DING, Shuang
丁爽
Title: METHOD OF ADJUSTING ELECTRONIC EXPANSION VALVE OF AIR-CONDITIONER
Abstract:
Provided is a method of adjusting an electronic expansion valve of an air-conditioner, comprising: obtaining a real-time operating frequency, a real-time exhaust temperature and a real-time outdoor ambient temperature of a compressor; under a cooling working condition, determining to obtain an integration coefficient of a PID algorithm by using a first set rule or a second set rule according to a magnitude relation between the real-time outdoor ambient temperature and a first set outdoor ambient temperature; under a heating working condition, determining to obtain the integration coefficient of the PID algorithm by using the first set rule or a third set rule according to a magnitude relation between the real-time outdoor ambient temperature and a second set outdoor ambient temperature; and regarding a difference value between the real-time exhaust temperature and a set target exhaust temperature as a deviation value, performing a PID control on the opening degree of the electronic expansion valve based on the deviation value. The method realizes accurate, stable adjustment to the opening degree of the electronic expansion valve.