Question B.13.8: We now use the root locus to find the gain to meet a transie...

Control Systems Engineering [EXP-57621]

We now use the root locus to find the gain to meet a transient response requirement.AfterMATLAB produces a z-plane root locus, alongwith damping ratio curves superimposed using the command zgrid, we interactively select the desired operating point at a damping ratio of 0.7, thus determining the gain. MATLAB responds with a gain value as well as the step response of the closed-loop sampled system using step(Tz), where Tz is a digital LTI transfer-function object. Let us look at Example 13.11.

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