Root locus with two inputs?

2021 11 9
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更新时间：2024 4 24
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Hello,
I have a simulink model with two inputs, and I'm trying to get the root locus plot of it. Is this possible?
Thank you.

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Pl., post your simulink model, so we can provide an adequate guidance or an answer.
Justin Thakar
Justin Thakar 2021-11-9
@Sulaymon Eshkabilov hoping this helps you answer the question.

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Krishna
Krishna 2024-4-24

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Hello Justin,
Certainly! To get a root locus plot from a Simulink model, follow these steps:
  • Linearize your Simulink model to get its linear representation (usually a state-space model) using Simulink Control Design's ‘linearize’ function.
  • Convert the linear model to a transfer function if necessary, using MATLAB's ‘ss2tf’ function for state-space models.
  • Use the ‘rlocus’ function to generate and plot the root locus of the transfer function.
Please go through the following documentation to learn more,
https://in.mathworks.com/discovery/root-locus.html
https://in.mathworks.com/help/control/ref/dynamicsystem.rlocus.html
Hope this helps.

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