Dynamics and control designs for internal thermally coupled distillation columns with different purities,Part 1:Open loop dynamic behaviors

作     者：ZHU Yu, LIU Xinggao and CHU Jian National Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China 

作者机构：[a]National Laboratory of Industrial Control Technology Department of Control Science and Engineering Zhejiang University Hangzhou China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2006年第16卷第5期

页      面：346-351页

核心收录：

学科分类：07[理学] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 

基　　金：Supported by National Natural Science Foundation of China (Grant No. 20106008) ZJNSFC (Grant No. Y105370) National Development and Reform Commission of China (Grant No. Fagai Gaoji-2004-2080) Science Fund for Distinguished Young Scholars of Zhejiang University (Grant No.111000-581645) 

主　　题：thermal coupling inverse response non-linearity high purity asymmetric behavior. 

摘      要：The open loop dynamic behaviors of internal thermally coupled distillation column with four different purities (low-, moderate-, high- and very high-purity) are studied. These dynamic behaviors are characterized by strong asymmetric non-linearity, high sensitivity to operation conditions change and distinct inverse response. With the increase of purity, these dynamic behaviors are intensified and become more complex, which easily lead to the mismatch between linear model and plant and also change the relationship between manipulated and controlled variables.