洁净室温湿度控制算法研究  

Study on clean-room temperature and humidity control algorithm

作　　者：赵钢[1] 张盼盼[1] 

机构地区：[1]天津理工大学天津市复杂控制理论与应用重点实验室,天津300384

出　　处：《西安建筑科技大学学报（自然科学版）》2012年第3期435-440,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：通常洁净室温湿度系统具有大时滞、时变及耦合性,难以建立精确数学模型.本文针对某洁净制药车间的温湿度控制,采用了前馈补偿器,模糊PID控制与改进型Smith预估补偿算法相结合的控制方案,提高温湿度实时控制性能.仿真结果表明,该方案解决了温湿度系统耦合问题,提高了温湿度控制精度,获得较好的控制效果.In normal conditions the temperature and humidity system of clean-room has the characteristics of large time de- lay, time-varying, making coupling and accurate mathematic model hard to establish. To control the temperature and hu midity of clean pharmaceutical workshop, this paper presented a control scheme that combined feed-forward compensa- tion, Fuzzy PID and modified Smith pre-evaluation compensation to improve the system real-time performance of tempera- ture and humidity. Simulation results show the scheme solves the coupling problem of temperature and humidity system, improves the control accuracy, and obtains better control quality.

关 键 词：温湿度耦合 解耦 前馈补偿 模糊PID控制 SMITH预估补偿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]