空气处理机组风阀控制算法分析  

Analysis on control algorithm for air valves of air handling unit

作　　者：石健 莫俊 Shi Jian;Mo Jun(Shenzhen Envicool Technology Co. , Ltd.)

机构地区：[1]深圳市英维克科技股份有限公司

出　　处：《制冷与空调》2019年第4期81-85,共5页Refrigeration and Air-Conditioning

摘　　要：针对空气处理机组风阀常规PID控制算法中出现的2个风阀调节量不均衡、开机稳定慢的现象,提出一种基于串级PID控制的改进算法。首先根据阿里巴巴张北云计算数据中心二期工程中空气处理机组的实际运行情况搭建数学模型,然后利用该模型分别对常规PID和改进后的串级PID算法进行模拟运行与对比分析。结果表明,改进的串级PID算法使得2个风阀调节量均衡,并有效缩短系统进入稳定运行阶段的时间。An improved algorithm based on cascade PID control is proposed to solve the problems of unbalanced regulation and slow start-up stability of two air valves in the conventional PID control algorithm for air valves of air handling unit(AHU). Firstly,according to the actual operation of AHU in Alibaba Zhangbei Cloud Computing Data Center Phase II Project,a set of mathematical model is built. Then the model is used to simulate and compare the conventional PID algorithm with the improved cascade PID algorithm.The results show that the improved cascade PID algorithm can make these two air valves more balanced and shorten the time for the system to enter the stable stage effectively.

关 键 词：空气处理机组 风阀 PID 控制算法 热惯性 

分 类 号：TB657.2[一般工业技术—制冷工程]