Root Locus Sketching: Learn How to Draw and Analyze

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SUMMARY

This discussion focuses on the process of sketching a root locus plot in control systems. The participant demonstrates proficiency in identifying poles and zeros, determining the real axis segments of the root locus, and calculating breakaway points and asymptote intersections. However, they seek clarification on the actual drawing of the root locus. The provided resource, lpsa.swarthmore.edu, offers examples that can aid in visualizing the root locus technique.

PREREQUISITES
  • Understanding of control systems fundamentals
  • Familiarity with poles and zeros in transfer functions
  • Knowledge of breakaway points and asymptotes in root locus analysis
  • Basic skills in sketching graphs and interpreting plots
NEXT STEPS
  • Study the root locus method using the examples provided at lpsa.swarthmore.edu
  • Practice sketching root locus plots for various transfer functions
  • Learn about the Routh-Hurwitz criterion for stability analysis
  • Explore MATLAB's Control System Toolbox for automated root locus generation
USEFUL FOR

Students and professionals in control engineering, particularly those involved in system stability analysis and design, will benefit from this discussion.

Natalie89
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Hello,

I do not understand very well how to sketch a root locus plot. I am able to find poles/zeros, where the root locus exist on the real axis, the break away/in points, intersection of asymptotes, crossing of the imaginary axis, etc., but I do not understand how to actually draw the root locus at the end.

If anyone can give me some clarification that would be very much appreciated.
 
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Please refer to the content of followig link.
lpsa.swarthmore.edu/Root_Locus/RLocusExamples.html
I think you will be able to understand.
 
Thanks!
 

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