Consider the feedback system shown in Figure P9.28 with the process transfer function

Chapter 0, Problem P9.28

(choose chapter or problem)

Consider the feedback system shown in Figure P9.28 with the process transfer function given as G(s) = 1 s(s + 1)' The controller is the proportional controller GM = KP. (a) Determine a value of KP such that the phase margin is approximately P.M. s 45. (b) Using the P.M. obtained, predict the percent overshoot of the closed-loop system to a unit step input. (c) Plot the step response and compare the actual percent overshoot with the predicted percent overshoot.

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