Consider the system of Fig. P8.2-2 with T = 1 T = 1 s. The plant frequency
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Consider the system of Fig. P8.2-2 with s. The plant frequency response is given in Table P8.4-1.
(a) Let . If the system is stable, find its phase margin.
(b) Let the digital controller realize a gain , that is, . Find such that the system phase margin is .
(c) Obtain the system step response of part (b) using MATLAB, and find the rise time , and the percent overshoot.
(d) Design a unity-dc-gain phase-lag compensator that yields a phase margin of approximately .
(e) Obtain the system step response of part (d) using MATLAB, and find the rise time , and the percent overshoot.
Fig. P8.2-2
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Related Book For
Digital Control System Analysis And Design
ISBN: 9780132938310
4th Edition
Authors: Charles Phillips, H. Nagle, Aranya Chakrabortty
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