Question: 3. Consider a process with transfer function -0.2 s G. () -2.5 (3.25-1) (s+1) controlled by a controller with transfer function GG ()=-2(1+- 1+1). 100

3. Consider a process with transfer function -0.2 s G. ()

3. Consider a process with transfer function -0.2 s G. () -2.5 (3.25-1) (s+1) controlled by a controller with transfer function GG ()=-2(1+- 1+1). 100 s Use the Nyquist stability criterion to determine the number of closed loop poles with positive real part. Is the closed loop system stable? Do not forget to sketch theo semicircle. Nyquist plot recommended values: Wmin = 0.05, Wmax = 100

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