# Questions tagged [root-locus]

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### Determine range of proportional gain with given overshoot

I have given the open-loop transfer function $$G_{ol} = 1.42 \frac{(s+3)^2+6^2}{(s-1)(s+2)((s+4)^2+4^2)}$$ The task I was given is determining the range of the proportional gain, which makes the ...
31 views

### Centroid from calculated root locus is different to the one from MATLAB

Hi all hope someone can help me here. My problem involves the transfer function G(s)=(s+32.8)/((s+2.8)(s+5)(s+27.8) ) As far as im concerned the centroid is ...
35 views

### No breakaway points , No imaginary axis crossing points and No angle of departure

G(s)H(s) = K(s+1)/[s^2(s+2)(s+4)] According to my calculations there are 4 poles (0,0,-2,-4) and 1 zero (-1) in this system.No of branches are 3.The centroid is -1.67 and the angles of asymptote ...
33 views

### How can we plot Non minimum Phase system Root Locus?

I have a closed-loop transfer function $$H(s)=\frac{K(2-s)}{s(s+18)}.$$ I know that this is Non-Minimum Phase system, but I could not determine the points that cut through the real axis, the ...
143 views

### How to find the gain K at break-in and breakaway points of a Root Locus Plot on MATLAB

I would like to know how to find the break-in and breakaway points of a transfer function using root locus on MATLAB. MATLAB Code: ...