Cannot compute the root locus of models with complex data

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Tony
Tony 2024-4-29
评论： Paul 2024-4-30
Hi everyone,
I'm trying to use the function "rlocusplot(H)" with a comlex transfer function: H = 1/(s + 1 + 1i), without success.
Could someone please help me. Many thanks!
Best regards
Tony

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回答（1 个）

Paul
Paul 2024-4-29
Well, you can always loop through values of K and for each value of K solve for s that satisfies
den(s) + K*num(s) = 0
and plot the resulting values of s.
For simple, or even moderately complex, problems, the function roots would be helpful.
If you don't mind me asking, what kind of problem results in a trasnfer function with complex coefficients?
  2 个评论
Tony
Tony 2024-4-30
Hi Paul, thanks for answer!
So you mean, there isn't a function like rlocus(H1) from matlab for transfer function with complex coefficients ?

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