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Reducing the order of Transfer function

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I have an inverse of a tranfer function (TF) matrix. I am using this for my controllers. The inverse TF matrix I have is 6th order. Now I want to reduce the TF to lower orders, maybe to second or third. I have attached the screenshots. Any kind of help is appreciated.

Accepted Answer

Star Strider
Star Strider on 22 Feb 2019
If you have not already used the minreal (link) function, see if it will reduce the order.
Beyond that, I have no specific suggestions other than that you explore the other functions linked to in that documentation page.
DEBASISH MISHRA on 27 Apr 2020
you may use minreal(sys,tol)

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More Answers (1)

surya chandra gulipalli
surya chandra gulipalli on 15 Jun 2021
Try using 'balred' command. It works well. you can best fit a transfer function of desired order in required frequency range of importance.

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