What is the N coefficient filter in simulink?
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What is the N coefficient filter in simulink? What effect does it have on the PID controller?
Risposte (2)
Vaibhav Awale
il 6 Mag 2016
Hi Rikke,
Please refer to this post:
The filter coefficient is used to implement derivative action. Since implementing something like "Kd*s" is not possible since implementing improper transfer function is not possible. Hence instead of "Kd*s", we do something like:
Kd*(N*s/(s+N)).
So if N is sufficiently large, it tends to "Kd*s"
Hope this helps.
2 Commenti
José Miguel Riquelme Domínguez
il 8 Mag 2020
Hi Vaibhav, I have the following question: how can implement in Simulink a PID expressed like this? I'm not able to put it in Simulink's form. Thanks for your help,
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/291405/image.png)
José Miguel
SASANK DAS
il 4 Feb 2022
Can I give filter cofficient as N=2000, which will giving good indcutor current response for my buck converter, rather than using N=100(which will producing more noice)
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