Hi. I would like to ask you in the tranfer function that the numerator can be larger than the denominator ? Because I see in simulink i can not create a tranfer function like that

I would like to ask you in the tranfer function that the numerator can be larger than the denominator ?

Because I see in simulink i can not create a tranfer function like that

Answer 1

[Nicolas Schmit]

In MATLAB you can create arbitrary transfer functions, with a numerator degree greater than the denominator degree. This is forbidden in Simulink because such functions do not represent physical systems.

Answer 2

[Thanh Nguyen]

G(s) = N(s)/B(s) = a(s)+b(s)/c(s)

a(s) is a polynome, you can use derivative to create

order of b(s) is smaller than that of c(s) and you can create b(s)/c(s) by transfer function block

Finally you add two components

ex: s^2/(s+1)=s-1+1/(s+1)