Problem with selecting linear analysis points
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Ali Hosseini
il 6 Apr 2015
Modificato: Arkadiy Turevskiy
il 7 Apr 2015
I want to tune my PI controller for a voltage controller that produces current reference for a boost converter current controller in simulink using Frequency Response Estimation(to obtain Bode plots).I need to select proper linear analysis points but I don't know what kind of point to choose and where to put them on the signals in my model.Can you help me?I've attached my simulink file too.
Thanks in advance
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Arkadiy Turevskiy
il 7 Apr 2015
Modificato: Arkadiy Turevskiy
il 7 Apr 2015
If you want to do frequency response estimation, then please refer to this example . You will want to add linear analysis points in exactly the same way as shown there.
In general, through, I would recommend to follow the workflow described here. I tried it and it works fine on your model. The only thing is that when you inject step change into the model, make step amplitude high enough - I tried 30. Then identify first order transfer function from simulation data and use it for PId tuning.
Hope this helps.
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