scholarly journals Closed-Loop Identification and PID Retuning of Self-Excited Oscillatory Process from Poor PID Controller Tuning

2021 ◽  
Vol 54 (12) ◽  
pp. 672-684
Author(s):  
Shigeki Ootakara ◽  
Yoshiyuki Yamashita
Keyword(s):  
Pid Controller ◽  
Closed Loop ◽  
Oscillatory Process ◽  
Controller Tuning ◽  
Pid Controller Tuning ◽  
Closed Loop Identification

scholarly journals Closed Loop Tuning of Cascade Controllers Based on Setpoint Experiment

2020 ◽  
Vol 8 (4) ◽  
Author(s):  
Mohammad Atif Siddiqui ◽  
◽  
MN Anwar ◽  
SH Laskar ◽  
M Shamsuzzoha ◽  
...  
Keyword(s):  
Pid Controller ◽  
Closed Loop ◽  
Cascade Control ◽  
Peak Time ◽  
Process Data ◽  
Controller Tuning ◽  
Output Change ◽  
Pid Controller Tuning ◽  
Control Configuration ◽  
Loop Tuning

This study presents online PI/PID controller tuning rules for cascade control configuration. The necessary process data are determined with the help of a simple setpoint experiment in a single closed-loop mode with the proportional controller only. The obtained process data is recorded in terms of the overshoot, controller gain, peak time, and relative output change. The data is then utilized to establish a correlation with PI/PID settings through simulations. Further, the proposed PI/PID controller tuning rule for a single loop has been extended to the cascade control configuration. The inner loop controller is tuned first, and then the primary loop is tuned by considering a well-tuned inner loop as a part of the primary plant. Finally, simulation examples demonstrate that the proposed method delivers significant disturbance rejection and better setpoint response when compared to the recently reported methods from the literature. The proposed method is also able to deliver stable closed-loop performances when subjected to large parametric uncertainties and measurement noise.

An improved technique for PID controller tuning from closed-loop tests

AIChE Journal ◽  
1990 ◽  
Vol 36 (12) ◽  
pp. 1891-1895 ◽  
Author(s):  
Jietae Lee ◽  
Wonhui Cho ◽  
Thomas F. Edgar
Keyword(s):  
Pid Controller ◽  
Closed Loop ◽  
Controller Tuning ◽  
Pid Controller Tuning ◽  
Improved Technique

PID controller tuning for desired closed-loop responses for SI/SO systems

AIChE Journal ◽  
1998 ◽  
Vol 44 (1) ◽  
pp. 106-115 ◽  
Author(s):  
Yongho Lee ◽  
Sunwon Park ◽  
Moonyong Lee ◽  
Coleman Brosilow
Keyword(s):  
Pid Controller ◽  
Closed Loop ◽  
Controller Tuning ◽  
Pid Controller Tuning

Research and Application of Load Control Based on Setpoint Overshoot Method

2013 ◽  
Vol 805-806 ◽  
pp. 1022-1026
Author(s):  
Jun Li ◽  
Wei Wei Li ◽  
Zhao Xin Wang
Keyword(s):  
Power Plant ◽  
Pid Controller ◽  
Closed Loop ◽  
Load Control ◽  
Controller Tuning ◽  
Pid Controller Tuning

Principles and characteristics of setpoint overshoot method are illustrated. The proposed method has been developed for PID controller tuning of an unidentified process using closed loop experiments. It requires one closed-loop step setpoint response experiment using a proportional only controller, and it mainly uses information about the first peak (overshoot) which is very easy to identify. It was applied in turbine of power plant to tune the PI parameters of load control. The application results demonstrate the validity of the proposed method.

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