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a Problem In LQR controller

a Problem In LQR controller

a Problem In LQR controller

Hi guys!!

Does anyone know anything about LQR method? I have a problem in my code to gain a correct k-gains!!

RE: a Problem In LQR controller

Plenty of people know things about the LQR method. Please be more specific with your question.

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RE: a Problem In LQR controller

In fact, I have a uniform beam with piezo actuator/sensor film and I want to control it based on LQR controller method.
For gaining accurate results and convergence, I have to use at least 4 mode shapes in my numerical method. As a result, as I increase my mode shape in my code, the number of final states, which I want to control, will increase. For example, I have 2 states: W and U. If I use only first mode shape ( n=1 ), my final states will be 2 and I will have 2 k-gains for them. If I use 4 mode shapes ( n=4 ), I will have 8 states and k-gains.

I don't know what I should do to have both accurate answer and only 2 k-gain ?!

I hope I could explain my problem clear.

Thank you in advance.glasses

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