Home » Control System » Control system miscellaneous » Question

Control system miscellaneous

  1. A plant has the following transfer function :
    G(s) =
    1
    (s2 + 0.2s + 1)

    From a step input it is required that the response settles to within 2% of its final value. The plant setting time is _____sec
    1. 4 sec
    2. 40 sec
    3. 10 sec
    4. None of the above
Correct Option: B

Characteristics equation s2 + 0.2s + 1 = 0, when expressed in form s2 + 2 δ ω n + ω2n , then setting time is given by,

tss =
4
=
4
= 40 ms
n0.1



Your comments will be displayed only after manual approval.