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State Space plant inversion not implemented #939

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pooyasf opened this issue Nov 1, 2023 · 1 comment

pooyasf commented Nov 1, 2023

It would be great if we can invert a state space with python-control.

The formulation is easy:
https://engineering.stackexchange.com/questions/21895/how-do-i-invert-a-system-in-state-space-form

The relevant Matlab page is here:
https://nl.mathworks.com/help/control/ref/inputoutputmodel.inv.html

Contributor

KybernetikJo commented Nov 23, 2023

case D<>0 and D is invertible:
The first case is already wrapped into Slycot.

case D==0 or D is not invertible:
For the descriptor case, there is a SLICOT subroutine:
AG07BD.f

This is not yet wrapped into Slycot.

As far as I know, neither Scipy nor Python-Control can handle descriptor systems.

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