基于PLC的中央空调控制系统设计  

Design of Central Air Conditioning Control SystemBased on PLC

作　　者：郭志冬[1] GUO Zhi-dong(Sanmenxia Polytechnic,Sanmenxia,Henan,China 472000)

机构地区：[1]三门峡职业技术学院,河南三门峡472000

出　　处：《湖南邮电职业技术学院学报》2022年第1期20-22,共3页Journal of Hunan Post and Telecommunication College

基　　金：2020年度河南省教育厅“河南省高等职业院校青年骨干教师培养计划”(课题编号:2020GZGG076)。

摘　　要：空调行业对用电功耗的控制要求越来越严格,而现有中央空调系统能耗始终较高。文章充分利用中央空调负荷不确定性这一特征,采用PLC、变频器等器件,设计一款具有较高自动控制功能的中央空调系统。该系统通过电机配置变频器来实现调速控制,对不同负荷采取变风量控制和变流量控制来降低无效能源消耗,并设计了软件控制流程和组态监控界面,从而实现了中央空调的变频运行控制,最终实现变频节能的目的。The control requirements of power consumption in the air conditioning industry are becoming more and more strict,and the energy consumption of the existing central air conditioning system is always high.Taking full advantage of the uncertainty of central air-conditioning load,this paper designs a central air-conditioning system with high automatic control function by using PLC,frequency converter and other devices.The system realizes speed regulation control by configuring frequency converter for motor,adopts variable air volume control and variable flow control for different loads to reduce invalid energy consumption,and designs software control process and configuration monitoring interface,so as to realize the variable frequency operation control of central air conditioning,and finally realize the purpose of variable frequency energy saving.

关 键 词：中央空调 控制系统 PLC 变频器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]