Closed-loop PI/PID controller tuning for stable and unstable processes

2012 ◽  
Author(s):  
M. Shamsuzzoha ◽  
Moonyong Lee ◽  
H. Seki
Keyword(s):  
Pid Controller ◽  
Closed Loop ◽  
Controller Tuning ◽  
Pid Controller Tuning ◽  
Unstable Processes

On-line PID controller tuning for open-loop unstable processes

2000 ◽  
Vol 33 (20) ◽  
pp. 25-32
Author(s):  
K.G. Arvanitis ◽  
N.A. Sigrimis ◽  
G.D. Pasgianos ◽  
G. Kalogeropoulos
Keyword(s):  
Pid Controller ◽  
Open Loop ◽  
Controller Tuning ◽  
Pid Controller Tuning ◽  
On Line ◽  
Unstable Processes

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
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