Export transfer functions from Control System Design App

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Gili
Gili 2022-12-15
评论： Matt 2025-12-20，21:42
In the Control System Design App I tuned the gains in my model according to my requirements (simple gains block without PID or Filters blocks). After I finished tuning I want to export the tuned gains but I also want to export the transfer functions Simulink create (The TFs that represented in the graphs I tuned according to them).
The default name of these TFs is "LoopTrasfer_(Hierarchy of the block you want to tune)", but I cannot see this TF in the app and cannot export it to MATLAB work space.
I didn't find any way to do that, although it seems to me that it supposed to be pretty basic capability. I am working with MATLAB 2020a.

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回答（1 个）

Sam Chak
Sam Chak 2022-12-15
Hi @Gili
Check if you can click <Export> and able to select the desired model LoopTransfer_C from list in the Export Model dialog box.
If you can export the Loop Transfer model to Workspace, then enter this to obtain the transfer function:
tf(LoopTransfer_C)
  1 个评论
Matt
Matt about 13 hours 前
This yields the open-loop transfer function C(s)G(s), I believe. It seems to me that that @Gili wanted the closed-loop transfer function, based on the comment that it should be the one "that represented in the graphs [she] tuned according to them." To get the closed-loop transfer function, one could enter
feedback(tf(LoopTransfer_C), 1)

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