test99f2

test99f2 - Midterm 2 for EE3530 1 Consider the feedback...

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Unformatted text preview: Midterm 2 for EE3530 1. Consider the feedback system as in Figure 1 with zero noise nt 0 and Ds = K . Suppose that at K = Ku = 11:74, its step response is given by 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 1 2 3 4 5 6 7 8 9 10 Use ultimate gain method to design a PID compensator. 2. Suppose that for the feedback system in Figure 1, 40bs + 1 Gs = 2 1 s + 2s + 10s + 8s + a where a = 3 and b = 0:2. Design a PID compensator using pole zero cancellation and approximation method to satisfy the performance speci cations discuss its validation: tr 1s; Mp 0:20: 3. Compare the two PID compensators designed previously in terms of sensitivity performance at the low frequency range s = j! 0, and noise rejection at high frequency p s = j! j 1 where j = ,1. 4. For the compute feedback system in Figure 1 with Gs in 1, compute sensitivity T T Sa and Sb with T s the closed-loop transfer function. r(t) D(s) y(t) G(s) n(t) Figure 1: Feedback System ...
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