Find the range of K, for which the closed-loop system shown in Figure Qld is stable. (d) C(s) R(s) K1 s+8 (s + 1)(s + 5) Figure Qld

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Answer d)
Find the time-domain response to a unit impulse input for a system described
by the transfer function
Q1
(a)
G(s)
s + 1
s2 + 2s + 13
(b)
A system has the closed-loop transfer function
s(s + 1)
G(s) =
(s + 3)(s² – 4s + 13)
%3D
Sketch the Pole-Zero plot for this system. Comment on the stability and
response characteristics of the system.
A PD controller with proportional gain K, and derivative gain Ka is in series
with a plant with the transfer function
(c)
4
G(s) =
s + 0.5
and employs a unity negative feedback loop. Find suitable values for K, and Ka
so that the closed-loop system has a time constant t = 4 sec, and the closed-
loop response to a step input is 0.98.
Find the range of K, for which the closed-loop system shown in Figure Qld is
stable.
(d)
C(s)
R(s)
K1
s+ 8
(s + 1)(s + 5)
Figure Qld
Transcribed Image Text:Find the time-domain response to a unit impulse input for a system described by the transfer function Q1 (a) G(s) s + 1 s2 + 2s + 13 (b) A system has the closed-loop transfer function s(s + 1) G(s) = (s + 3)(s² – 4s + 13) %3D Sketch the Pole-Zero plot for this system. Comment on the stability and response characteristics of the system. A PD controller with proportional gain K, and derivative gain Ka is in series with a plant with the transfer function (c) 4 G(s) = s + 0.5 and employs a unity negative feedback loop. Find suitable values for K, and Ka so that the closed-loop system has a time constant t = 4 sec, and the closed- loop response to a step input is 0.98. Find the range of K, for which the closed-loop system shown in Figure Qld is stable. (d) C(s) R(s) K1 s+ 8 (s + 1)(s + 5) Figure Qld
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