Discrete to continuous in Simulink.
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Hi, I use PID controller to control the input voltage (Ui) of the servo valve to adjust the spool displacement [-10< Ui <10 (V)].
I coded Ui =[-10:0.01:10]; and Simulink show the error: "Encountered unknown exception". So i think that discrete value from Ui can't calculate for the continuous system ( have PID controller and Intergator). It has any block or code to make Ui become continuous? Thank you for help.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1107570/image.png)
5 commentaires
Paul
le 29 Août 2022
Apparently Ui is supposed to be scalar, but its coded as a 2001-element vector. Why is it coded as a vector?
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Abderrahim. B
le 25 Août 2022
Hi!
Check out the link below, some others methods to do this conversion are listed there.
Note that most of these methods require Control System Toolbox.
Hope this helps
2 commentaires
Abderrahim. B
le 29 Août 2022
d2c and c2d accept model object as input, will not work in your case. To convert a vector(discrete) to continuous use quantizer and zero-order hold blocks.
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