With the PI gains set to Kp = 6 and Kt = 50 for the plant Gp
Question:
Gp (s) = 1 / s + 4
The time constant is ( = 0.2 and the damping ratio is ( = 0.707.
a. Compute the gain and phase margins.
b. Suppose there is dead time D = 0.1 between the controller and the plant. Compute the gain and phase margins, and plot the unit-step response.
c. How large can the dead time be without the system becoming unstable?
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a Since the openloop transfer function is K P s K I ss 4 the margins are calculated in MATLAB as fol...View the full answer
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