i. Given the unity feedback system of Figure 2.2 with: G(s) == a. Plot the Bode diagram of G(s) using asymptotes. b. Fin

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I Given The Unity Feedback System Of Figure 2 2 With G S A Plot The Bode Diagram Of G S Using Asymptotes B Fin 1 (75.08 KiB) Viewed 39 times

i. Given the unity feedback system of Figure 2.2 with: G(s) == a. Plot the Bode diagram of G(s) using asymptotes. b. Find the gain and phase margins. i. The Nyquist diagram of the forward-path transfer function G(s)/K of a unity feedback control system is shown in Figure 4.1. Find the following performance characteristics of the system: a. Gain margin (dB) when K=1. b. Phase margin when K=1. c. The value of K so that the gain margin is 20dB. d. The value of K so that the system is marginally stable. e. Steady state error when the reference input is a unit-step function. Nyquist Diagram 1 0.8 0.6 0.4 0.2 -0.6 -0.4 -0.2 0 0.2 0.4 Real Axis Figure 4.1 Imaginary Axis 0 + -0.2 -0.4 -0.6 -0.8 -1 -1 -0.8 10(s + 1) s(s+ 3) (s² + s + 30) 0.6 0.8 1