Implementation and test of a new autotuning method for PID controllers of TITO processes

Abstract In this paper we present a new closed-loop automatic tuning methodology for decentralised proportional–integral–derivative (PID) controllers applied to two-inputs–two-outputs (TITO) non-singular processes. The main feature of the technique is the estimation of the process parameters by evaluating two closed-loop set-point step responses with two roughly tuned PID controllers already in place. Then, once a process model has been obtained, the PID controllers can be retuned by using any rule available in the literature and suitable for the application. Simulation examples, comparative results with other works and a real application on a neonatal incubator prototype are given to illustrate the methodology and to show its effectiveness.

[1]  Evanghelos Zafiriou,et al.  Robust process control , 1987 .

[2]  Sunwon Park,et al.  PID controller tuning for desired closed‐loop responses for SI/SO systems , 1998 .

[3]  G. Marchetti,et al.  RELAY AUTOTUNING OF MULTIVARIABLE SYSTEMS: APPLICATION TO AN EXPERIMENTAL PILOT-SCALE DISTILLATION COLUMN , 2002 .

[4]  Shyh Hong Hwang,et al.  Sequential design method for multivariable decoupling and multiloop PID controllers , 1998 .

[5]  Yun Li,et al.  PID control system analysis, design, and technology , 2005, IEEE Transactions on Control Systems Technology.

[6]  K. Natarajan,et al.  Tuning of PI controllers with one-way decoupling in 2×2 MIMO systems based on finite frequency response data , 2003 .

[7]  Sigurd Skogestad,et al.  Simple analytic rules for model reduction and PID controller tuning , 2003 .

[8]  R. K. Wood,et al.  Terminal composition control of a binary distillation column , 1973 .

[9]  Wang,et al.  Auto-tuning of TITO decoupling controllers from step tests , 2000, ISA transactions.

[10]  Shih‐Haur Shen,et al.  Use of relay‐feedback test for automatic tuning of multivariable systems , 1994 .

[11]  K. Thomas.  Thermoregulation in neonates. , 1994, Neonatal network : NN.

[12]  Antonio Visioli,et al.  An Automatic Tuning Method for Multiloop PID Controllers , 2011 .

[13]  Eduardo F. Camacho,et al.  Control of dead-time processes , 2007 .

[14]  Y. Halevi,et al.  Automatic tuning of decentralized PID controllers for TITO processes , 1993, at - Automatisierungstechnik.

[15]  Qing-Guo Wang,et al.  PID Control for Multivariable Processes , 2008 .

[16]  Antonio Visioli,et al.  Simultaneous closed-loop automatic tuning method for cascade controllers , 2011 .

[17]  W. Zhang,et al.  Analytical Design of Decoupling Internal Model Control (IMC) Scheme for Two-Input-Two-Output (TITO) Processes with Time Delays , 2006 .

[18]  Qing-Guo Wang,et al.  Auto-tuning of multivariable PID controllers from decentralized relay feedback , 1997, Autom..

[19]  Bismark C. Torrico,et al.  New automatic tuning of multivariable PID controller applied to a neonatal incubator , 2015, 2015 8th International Conference on Biomedical Engineering and Informatics (BMEI).

[20]  Antonio Visioli,et al.  An industrial application of a performance assessment and retuning technique for PI controllers. , 2010, ISA transactions.

[21]  Tore Hägglund,et al.  Automatic Tuning and Adaptation for PID Controllers—A Survey , 1992 .

[22]  Tao Liu,et al.  Analytical Multiloop PI/PID Controller Design for Two-by-Two Processes with Time Delays , 2005 .

[23]  Wenjian Cai,et al.  EFFECTIVE DECENTRALIZED TITO PROCESS IDENTIFICATION FROM CLOSED‐LOOP STEP RESPONSES , 2005 .

[24]  Antonio Visioli,et al.  Performance assessment and retuning of PID controllers for integral processes , 2010 .

[25]  Antonio Visioli,et al.  Practical PID Control , 2006 .

[26]  Fernando Morilla,et al.  An iterative method for tuning decentralized PID controllers , 1999 .

[27]  Tao Liu,et al.  A tutorial review on process identification from step or relay feedback test , 2013 .

[28]  Qing-Guo Wang,et al.  PID Control for MIMO Processes , 2012 .

[29]  Moonyong Lee,et al.  Analytical Design of Multiloop PID Controllers for Desired Closed-Loop Responses (R&D Note) , 2004 .

[30]  Zalman J. Palmor,et al.  Automatic tuning of decentralized PID controllers for TITO processes , 1993, Autom..

[31]  Julio E. Normey-Rico,et al.  An automatic tuning methodology for a unified dead-time compensator , 2014 .

[32]  Tore Hägglund,et al.  Advanced PID Control , 2005 .

[33]  William L. Luyben,et al.  Simple method for tuning SISO controllers in multivariable systems , 1986 .

[34]  Marcos Uchoa Cavalcante,et al.  Filtered model-based predictive control applied to the temperature and humidity control of a neonatal incubator , 2010, 2010 9th IEEE/IAS International Conference on Industry Applications - INDUSCON 2010.

[35]  Antonio Visioli,et al.  Performance Assessment and Retuning of PID Controllers , 2009 .

[36]  Thomas F. Edgar,et al.  Process Dynamics and Control , 1989 .