· Stability in the Frequency Domain

1. Consider a closed-loop system that has the loop transfer function L(s) = Gc(s)G(s) = Ke-TS / s

1. Determine the gain K so that the phase margin is 60 degrees when T = 0.2.

2. Plot the phase margin versus the time delay T for K as in part (a).

2. Include all MATLAB code, calculations and screenshots in a Word entitled “Lab6_StudentID”.

3. Upload file “Lab6_StudentID”