Analytical Proportional-Integral (PI) Controller Tuning Using Closed-Loop Setpoint Response

作者：Hu Wuhua; Xiao Gaoxi^*

来源：Industrial & Engineering Chemistry Research, 2011, 50(4): 2461-2466.

DOI：10.1021/ie101475n

Recently, Shamsuzzoha and Skogestad proposed a proportional-integral (PI) tuning rule for a wide range of unidentified processes. [M. Shamsuzzoha and S. Skogestad, J. Process Control 2010, 20, 1220.] The rule relies on a closed-loop setpoint response (CSR) of a process and was developed from extensive numerical experiments. This work analytically derives a similar PI tuning rule using the CSR method. Simulations indicate that the two rules perform similarly if the tuning parameter is selected properly for the analytical rule. Meanwhile, a guideline is proposed for choosing the proportional (P) controller gain for the CSR experiment to result in a proper overshoot for obtaining good PI settings. Numerical examples are used to demonstrate the usefulness of the theoretical results.

• 出版日期2011-2-16
• 单位南阳理工学院