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Laplace.T Root-locus Transient response Frecuency response
       
 
 
 

13 Problem A6.14 OGATA 4edition(root locus)




Let us calculate the root-locus of a closed-loop system with feedback by Scilab, whose transfer function in open loop is:

\begin{displaymath}G(s)=\frac{K\cdot (s+2)}{(s^{3}+9\cdot s^{2}+8\cdot s)}\end{displaymath}


Program in Scilab
s=%s;
num=(s+2);
den=(s^3+9*s^2+8*s);
g=syslin('c',num/den);
clf;
evans(g);
sgrid([0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9]
,[1 2 3 4 5 6 7 8],23);

v=[-8 4 -6 6]
mtlb_axis(v);
  

 


Image Problema-A6-14

cajael