Re: control package, can't simulate complex systems

[Doug Stewart]

On Wed, Jun 10, 2020 at 11:32 AM octavecontrib <octavecontrib@gmail.com> wrote:

I tried this

pkg load signal

[a,b,c,d] = tf2ss(q);
step(ss(a,b,c,d))

 

 

representing high order systems in transfer function form is not a good idea in general.

The pzmap of 'q' showed that the poles are all in the left half plane. That hinted that the coefficients are still probably good; which is why I tried converting to state space.

If possible in your application, avoid transfer functions where the order is very high.

Regards,

This also works without te signal pkg.

step(ss(q))

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DAS