Intelligent decoupling PID control for the forced-circulation evaporation system

IMR OpenIR

	Intelligent decoupling PID control for the forced-circulation evaporation system
其他题名	Intelligent decoupling PID control for the forced-circulation evaporation system
	Wang Yonggang 1; Pang Xinfu 1; Piao Zailin 1; Fang Jingjing 1; Fu Jun 3; Chai Tianyou 3
	2015
发表期刊	CHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN	1004-9541
卷号	23 期号:12 页码:2075-2086
摘要	The control objective of the forced-circulation evaporation process of alumina production is not only to avoid large fluctuations of the level, but also to ensure the product density to track its setpoint quickly. Due to the existence of strong coupling between the level loop and the product density loop, and high nonlinearities in the process, the conventional control strategy cannot achieve satisfactory control performance, and thus the production demand cannot be met. In this paper, an intelligent decoupling PID controller including conventional PID controllers, a decoupling compensator and a neural feedforward compensator is proposed. The parameters of such controller are determined by generalized predictive control law. Real-time experiment results show that the proposed method can decouple the loops effectively and thus improve the evaporation efficiency. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
其他摘要	The control objective of the forced-circulation evaporation process of alumina production is not only to avoid large fluctuations of the level, but also to ensure the product density to track its setpoint quickly. Due to the existence of strong coupling between the level loop and the product density loop, and high nonlinearities in the process, the conventional control strategy cannot achieve satisfactory control performance, and thus the production demand cannot be met. In this paper, an intelligent decoupling PID controller including conventional PID controllers, a decoupling compensator and a neural feedforward compensator is proposed. The parameters of such controller are determined by generalized predictive control law. Real-time experiment results show that the proposed method can decouple the loops effectively and thus improve the evaporation efficiency.
关键词	Forced-circulation system Decoupling Neural networks Nonlinear system
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [National Key Technology RD Program] ; [China Postdoctoral Science Foundation] ; [Special Fund for Agro-scientific Research in the Public Interest] ; [Key Scientific and Technological Project of Liaoning Province]
CSCD记录号	CSCD:5607074
引用统计	被引频次：3[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/156434
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.Huazhong University Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430037, Peoples R China 3.东北大学
推荐引用方式 GB/T 7714	Wang Yonggang,Pang Xinfu,Piao Zailin,et al. Intelligent decoupling PID control for the forced-circulation evaporation system[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2015,23(12):2075-2086.
APA	Wang Yonggang,Pang Xinfu,Piao Zailin,Fang Jingjing,Fu Jun,&Chai Tianyou.(2015).Intelligent decoupling PID control for the forced-circulation evaporation system.CHINESE JOURNAL OF CHEMICAL ENGINEERING,23(12),2075-2086.
MLA	Wang Yonggang,et al."Intelligent decoupling PID control for the forced-circulation evaporation system".CHINESE JOURNAL OF CHEMICAL ENGINEERING 23.12(2015):2075-2086.