Need some help about optimization with matlab and simulink.

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Donguk Koo
Donguk Koo 2021-6-4
回答： Alan Weiss 2021-6-6
Hello, can anybody help me doing optimization work?
<process>
1) Kp, Ki, Kd is variable.
2) Run simulink PID model using that variable.
3) export simulink simulation result to matlab. (a, b, c)
4) find Kp, Ki, Kd that minimizing F=a*b*c
I tried to use fmincon function in optimization tool(matlab), but I couldn't express F as a function of Kp, Ki, Kd.
And also I don't know how to put varying Kp, Ki, Kd in simulink PID control block.
How can I solve this problem? I'd really appreciate it if you could just give me a quick.

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回答（1 个）

Alan Weiss
Alan Weiss 2021-6-6
For a relevant example, see lsqnonlin with a Simulink® Model.
Alan Weiss
MATLAB mathematical toolbox documentation

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