A control system with negative unity feedback has a process

Note that the steady-state error of this system for a ramp input is zero.

(a) Set KI = 1 and find a suitable value of KP so the step response will have a percent overshoot of P.O. … 20,.

(b) What is the expected settling time (with a 2% criterion) of the compensated system?

400 G(s) = s(s + 40)* and we select a proportional plus integral compensa- tion, where K Gc(s) = Kp + S