PID tuning / optimization usig machine learning/deep learning algorithm
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Hello, I would like to ask about PID tuning using ML/DL algorithms. is there any article available in mathworks to do PID tuning using Machine learning for the optimization of the function. IF anyone did same thing, could you please help me?
I have created a model in Simulink. I want to do optimization to minimize the error. for that I want to do PID tuning.
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Raghava S N
2024-2-26
0 个投票
Hi Avdhut,
You could use the blocks that are shipped with the Reinforcement Learning Toolbox to tune a PID controller. An example application is also shipped with the documentation of the Reinforcement Learning Toolbox.
Please find the link to the same here - https://www.mathworks.com/help/reinforcement-learning/ug/tune-pi-controller-using-td3.html. This example shows how to tune the two gains of a PI controller using the twin-delayed deep deterministic policy gradient (TD3) reinforcement learning algorithm.You may adapt the workflows used in the above application (which tunes a PI controller) to your PID controller.
9 个评论
Avdhut Machchhindra
2024-5-7
移动：Sam Chak
2024-5-7
I'm not entirely sure, but perhaps @Raghava S N can assist you. However, I believe it might be quite challenging for you to tune PID gains with a genetic algorithm (GA) if you don't have any experience in mathematically tuning PID gains using formulas. Let's consider a double integrator system as an example.
Can you tune the PID controller using textbook knowledge?
Gp = tf(1, [1 0 0])
Avdhut Machchhindra
2024-5-13
移动：Sam Chak
2024-5-13
Hello Sam,
I tried Genetic algorithm by method mentioned on youtube, however I am getting following error. Could you please help me to rectify this.
Avdhut Machchhindra
2024-5-13
编辑：Sam Chak
2024-5-13
Hello Sam,
I used integral time absolute error (ITAE) for optimization and directly took its value from simulink model as shown in figure. I have 5 controllers in my model so i added ITAE of all controllers and called it to workspace.
Sam Chak
2024-5-13
Hi @Avdhut Machchhindra, The error message suggests that you have passed a time series data to ga(), which I assume originates from your Simulink model. The value of the cost function should indeed be a scalar. Is that the case in your implementation?
Avdhut Machchhindra
2024-5-13
Sam Chak
2024-5-13
Would this one more compact?
cost = ITAE(end);
instead of
cost = ITAE(length(ITAE));
Avdhut Machchhindra
2024-5-13
Sam Chak
2024-5-13
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