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Re: control package, can't simulate complex systems


From: octavecontrib
Subject: Re: control package, can't simulate complex systems
Date: Wed, 10 Jun 2020 21:02:02 +0530

I tried this

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

image.png


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,

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