Ipopt in Simulink

[الأستاذ وليد بن شوش لرياضيات المتوسط‎]

Hello, Can I use ipopt for mpc in simulink ? i am a newbie

[John Hedengren]

There is an interface to Simulink with APMonitor (that uses IPOPT): https://apmonitor.com/do/index.php/Main/DynamicControl There are also links to solve MPC with MATLAB and Python (Gekko).

 

-John Hedengren

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[丰赵]

Hi，John

        don't know how to start a new topic, and how to report the issue, just report here.

        there is an error about the the Gekko example "Moving Horizon Estimation"

from gekko import GEKKO import numpy as np import matplotlib.pyplot as plt # Estimator Model m = GEKKO() m.time = p.time

p.time can't be recognized by python.

[John Hedengren]

The values for p.time, u_meas, and y_meas are defined in the preceding example "15. Simulation" at https://apmonitor.com/wiki/index.php/Main/GekkoPythonOptimization All 18 examples are accessed from the Jupyter Notebook or the Google Colab online interface. I have updated "16. Moving Horizon Estimation" to be stand-alone to resolve the error that you mentioned with new source code. It does not rely on the process simulator from the prior step.

For future questions about Gekko, please post to StackOverflow with tag gekko. Here is an example of a related question:

https://stackoverflow.com/questions/72678759/using-gekko-for-moving-horizon-estimation-online

For feature requests or bug reports to Gekko, please raise a new issue in GitHub. Here are the current issues with Gekko: https://github.com/BYU-PRISM/GEKKO/issues

Best regards,

John Hedengren

To view this discussion on the web visit https://groups.google.com/d/msgid/apmonitor/879bb3e2-5d59-415a-b864-24c73fce5bebn%40googlegroups.com.

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Best regards,

John Hedengren

GEKKO Optimization Suite

https://machinelearning.byu.edu

[丰赵]

thanks John, it works, as you mentioned, example (process simulation) must be involved. I just run the the example standalone based on normal IDE.