https://github.com/auralius/steady-state-detection

Reconstruction of several papers on the topic of steady-state detection/identification.
https://github.com/auralius/steady-state-detection

control control-systems matlab process-control steady-state

Last synced: 5 months ago
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Reconstruction of several papers on the topic of steady-state detection/identification.

• Host: GitHub
• URL: https://github.com/auralius/steady-state-detection
• Owner: auralius
• License: mit
• Created: 2021-01-22T16:58:29.000Z (about 5 years ago)
• Default Branch: main
• Last Pushed: 2021-01-26T16:55:45.000Z (about 5 years ago)
• Last Synced: 2025-07-01T23:06:13.907Z (8 months ago)
• Topics: control, control-systems, matlab, process-control, steady-state
• Language: MATLAB
• Homepage:
• Size: 182 KB
• Stars: 7
• Watchers: 1
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# steady-state-detection

 

Recontruction of the following papers on the topic of steady state detection / identification methods:

[1] J. D. Kelly and J. D. Hedengren, “A steady-state detection (SSD) algorithm to detect non-stationary drifts in processes,” J. Process Control, vol. 23, no. 3, pp. 326–331, 2013.

![alt text](https://github.com/auralius/steady-state-detection/blob/main/kelly/result1.png)

![alt text](https://github.com/auralius/steady-state-detection/blob/main/kelly/result2.png)

A closer probability to 1 means the more likely it is in a steady state condition.

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[2] R. R. Rhinehart, “Automated steady and transient state identification in noisy processes,” in Proceedings of the American Control Conference, 2013, no. June 2013, pp. 4477–4493.

The figure below is without data windowing applied, each data point is processed immediately. It does not look so good. Perhaps, it needs more tuning for the lambda values.

![alt text](https://github.com/auralius/steady-state-detection/blob/main/rhinehart/result1.png)

The figure below is with data windowing applied. It looks nice ;-)

![alt text](https://github.com/auralius/steady-state-detection/blob/main/rhinehart/result2.png)

For this method, the lower R-value means the more likely it is in a steady state condition.

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The plant that is used:

Continously stirred tank reactor (CSTR):

http://apmonitor.com/che436/index.php/Main/CaseStudyCSTR