| Intelligent decoupling PID control for the forced-circulation evaporation system | |
| Alternative Title | Intelligent decoupling PID control for the forced-circulation evaporation system |
| Wang Yonggang1; Pang Xinfu1; Piao Zailin1; Fang Jingjing1; Fu Jun3; Chai Tianyou3 | |
| 2015 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| ISSN | 1004-9541 |
| Volume | 23Issue:12Pages:2075-2086 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | Forced-circulation system Decoupling Neural networks Nonlinear system |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [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 ID | CSCD:5607074 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/156434 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 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 |
| Recommended Citation 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. |
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