3. ( Consider again the system in Fig. 1. The plant transfer function in the frequency domain is 100 G(jw) = (jw +2)(jw + 4)(jw + 10) Fig. 2 shows a Nyquist contour for G(jw). Nyquist Diagram 1.5 0.5 -0.5 -1.5 -1.5 -0.5 0.5 1.5 Real Axis Figure 2: Nyquist Contour (i) system becomes marginally stable and the practical range of safe operating gains for the proportional controller. Apply the Nyquist criterion to find the gain K, at which the closed loop Find the gain margin of the system when the operating gain of the controller (ii) Kp = 2. Use Fig. 2 to read the required values off the plot. Imaginary Axis

3. ( Consider again the system in Fig. 1. The plant transfer function in the frequency domain is 100 G(jw) = (jw +2)(jw + 4)(jw + 10) Fig. 2 shows a Nyquist contour for G(jw). Nyquist Diagram 1.5 0.5 -0.5 -1.5 -1.5 -0.5 0.5 1.5 Real Axis Figure 2: Nyquist Contour (i) system becomes marginally stable and the practical range of safe operating gains for the proportional controller. Apply the Nyquist criterion to find the gain K, at which the closed loop Find the gain margin of the system when the operating gain of the controller (ii) Kp = 2. Use Fig. 2 to read the required values off the plot. Imaginary Axis

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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