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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (5): 381-393    DOI: 10.1631/jzus.C0910217
    
New loop pairing criterion based on interaction and integrity considerations
Ling-jian Ye, Zhi-huan Song*
Institute of Industrial Process Control, Zhejiang University, Hangzhou 310027, China
New loop pairing criterion based on interaction and integrity considerations
Ling-jian Ye, Zhi-huan Song*
Institute of Industrial Process Control, Zhejiang University, Hangzhou 310027, China
 全文: PDF(262 KB)  
摘要： Loop pairing is one of the major concerns when designing decentralized control systems for multivariable processes. Most existing pairing tools, such as the relative gain array (RGA) method, have shortcomings both in measuring interaction and in integrity issues. To evaluate the overall interaction among loops, we propose a statistics-based criterion via enumerating all possible combinations of loop statuses. Furthermore, we quantify the traditional concept of integrity to represent the extent of integrity of a decentralized control system. Thus, we propose that a pairing decision should be made by taking both factors into consideration. Two examples are provided to illustrate the effectiveness of the proposed criterion.
关键词： Control structure design;  Decentralized control;  Interaction analysis;  Variable pairing;  Relative gain array    
Abstract: Loop pairing is one of the major concerns when designing decentralized control systems for multivariable processes. Most existing pairing tools, such as the relative gain array (RGA) method, have shortcomings both in measuring interaction and in integrity issues. To evaluate the overall interaction among loops, we propose a statistics-based criterion via enumerating all possible combinations of loop statuses. Furthermore, we quantify the traditional concept of integrity to represent the extent of integrity of a decentralized control system. Thus, we propose that a pairing decision should be made by taking both factors into consideration. Two examples are provided to illustrate the effectiveness of the proposed criterion.
Key words: Control structure design    Decentralized control    Interaction analysis    Variable pairing    Relative gain array
收稿日期: 2009-04-17 出版日期: 2010-04-28
CLC:  TP273  
基金资助: Project supported by the National High-Tech Research and Devel-opment Program (863) of China (No. 2009AA04Z154), and the Na-
tional Natural Science Foundation of China (No. 60736021)
通讯作者: Zhi-huan SONG     E-mail: zhsong@iipc.zju.edu.cn
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Ling-jian Ye, Zhi-huan Song. New loop pairing criterion based on interaction and integrity considerations. Front. Inform. Technol. Electron. Eng., 2010, 11(5): 381-393.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C0910217    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2010/V11/I5/381

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