how to get bode plot and transfer function from my simulink block?
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I have built a simulation block myself and I wanna get it's transfer function and bode plot. So I can easily use PID controller.
I look for some information and it says I can use linear analysis tool. So I'm OK with that and also I know how to set input signal as sine wave.
But when following the instructions, I did get my output information in linear analysis tool and it shows up. However, when I click estimate button, it has error. There is a file attached to show my block.
I wanna know why and is there another way to easily get the transfer function and bode plot from simulink?
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Arkadiy Turevskiy
am 29 Nov. 2016
Can you attach the actual model? My guess is that you are running into problems here because your model includes three-phase machines with switching. Switching is discontinuous by nature and makes the model difficult to linearize.
If you are trying to design a pid controller you might want to follow the approach shown in this example .
HTH
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