Analytical Design of Multi-Loop PI Controllers for Interactive Multivariable Processes

作者：Vu Truong Nguyen Luan; Lee Moonyong^*

来源：Journal of Chemical Engineering of Japan, 2010, 43(2): 196-208.

DOI：10.1252/jcej.09we140

• Interactive Multivariable Process
• Multi-Loop PI Controller
• Generalized IMC-PID Tuning
• Relative Gain Array
• Closed-Loop Dynamic Interaction Matrix
• Multi-Loop Maximum Sensitivity Criterion

In this paper, a simple and efficient design method of multi-loop PI controllers is proposed by extending the Maclaurin series approach to a multi-loop control system. The controller parameter of a multi-loop system is related to that of a SISO non-interacting system with an interaction factor in the simple multiplication form. Based on this relation, analytical tuning rules for a multi-loop PI controller are derived for several representative process models. In order to improve both performance and robustness of the multi-loop control system, the multi-loop Ms criterion is utilized as a performance cost function. The simulation studies confirm the effectiveness of the proposed method.

• 出版日期2010