For the control system shown in Fig.3.20: (a) design a PID control $G_{c}(s)$ such that the dominant

Question:

For the control system shown in Fig.3.20:

(a) design a PID control $G_{c}(s)$ such that the dominant closed-loop poles located at $s=-1$ $\pm j 1$.

(b) select $a=0.6$ for the PID controller and find the values of $K$ and $b$

(c) root-locus plot using MATLAB.

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Fig. P 3. 20

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