Question: (a) Design a PI controller for Problem 8.6-5(b). (b) Design a PD controller for Problem 8.6-5(e). (c) Use the results of parts (a) and (b)

(a) Design a PI controller for Problem 8.6-5(b).

(b) Design a PD controller for Problem 8.6-5(e).

Problem 8.6-5(b) (d) (e)

(b) To reduce steady-state errors, K is increased to 5. Design a unity-dc-gain phase-lag controller that
yields a system phase margin of 45°.

(d) Using MATLAB, find the unit step response for the systems of parts (b) and (c). Compare the rise times
and the percent overshoot for the two systems.

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