Centralized PI/PID Controller Design for Multivariable Processes

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• 作者：Yuling Shen ; Youxian Sun ; Wei Xu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：June 25, 2014
• 年：2014
• 卷：53
• 期：25
• 页码：10439-10447
• 全文大小：459K
• ISSN：1520-5045

文摘

A novel centralized controller design method is proposed for multivariable systems, whether square or nonsquare processes. First, the relationship between equivalent transfer function (ETF) and the pseudo-inverse of multivariable transfer matrix is derived. Second, the relative normalized gain array (RNGA)-based ETF parametrization method is extended to the nonsquare processes. Finally, a centralized proportional integral/proportional integral derivative (PI/PID) multivariable controller is obtained from the Maclaurin expansion. The effectiveness of the proposed approach is verified by analysis of several multivariable industrial processes; better overall performance is demonstrated compared with other centralized control methods.