模糊控制与PID控制相结合在H_2/N_2比自控中的应用  

Application of the Combination of Fuzzy and PID Control in Proportion of Hydrogen Nitrogen Automatic Regulation

作　　者：谷文[1] 张朴[1] 孙德宝[1] 

机构地区：[1]华中科技大学控制科学与工程系

出　　处：《河北工业科技》2003年第1期14-17,共4页Hebei Journal of Industrial Science and Technology

摘　　要：目前在我国中小型合成氨厂中氢氮比是生产过程中最重要的工艺参数之一,因此将H2/N2控制在一定值对提高NH3合成率、节能降耗有十分重要的意义。本文主要介绍模糊控制与PID控制相结合并建立自学习机制,应用于无法取得深刻构造不能建立精确数学模型的控制对象——合成系统氢氮比控制,讲述了控制方案的设计以及软件设计要点。Nowadays,the ratio of Hydrogen and Nitrogen has became one of the most important technical parameters in the small and middle scale compound ammonia plant of our country,so controlling the ration of hydrogen and nitrogen within certain value will have significant effect on increasing the compound ratio of NH3,saving energy and deducing the const.In this paper,we introduce the combination of Fuzzy and PID control and make a autodidactic system, for Hydrogen Nitrogen Automatic Regulation which can neither gain a profund structure nor build exact mathematic model,in this paper we also express the method of the control scheme and the gist In the design of software.

关 键 词：模糊控制 PID控制 氢氮比控制 自学习机制 合成氨 

分 类 号：TQ113.256[化学工程—无机化工] TP273[自动化与计算机技术—检测技术与自动化装置]