DDC在变频空调控制系统中的应用研究  

Research on the Application of DDC in the Control System of Variable-frequency Air-conditioner

作　　者：王欣[1] 汪向前[1] 林昕[1] 

机构地区：[1]三江学院电气与自动化工程学院,江苏南京210012

出　　处：《科教文汇》2015年第26期178-179,共2页Journal of Science and Education

摘　　要：针对传统中央空调能耗大的问题,结合变频技术提出基于DDC在中央空调节能控制系统的应用,设计了由DDC、变频器、温度传感器等器件构成的温差闭环控制系统。系统能自动调节变频器的工作频率,实现了对冷却水塔排风机的变频控制,达到了节能目的。In view of the high energy consumption of traditional central air-conditioning, combinging with frequency conversion technology, this paper proposes the application of DDC in the control system of central air-conditioning, and designs a temper-ature difference closed-loop system consisting of DDC, vari-able-frequency drive, temperature transducer and so on. The system can automatically adjust the working frequency of variable-fre-quency drive, thus realizing the variable-frequency control of cool-ing tower and exhaust fan, and achieving the goal of energy saving.

关 键 词：节能 DDC 中央空调 变频技术 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]