Task 4 A Power Amplifier control system is shown in figure 1. 1. Find the values of K and Kr so that the closed-loop system will have a Mp = 50% overshoot and the minor loop will have a damping ratio of (=0.5169. 2. Provide a step response and a frequency response graphs. 3. Using K from step (a), compare the expected performance of the system without tachometer compensation to the expected performance with tachometer compensation. 4. Using the values of K and Kr as previously determined, design a lead-lag compensator cascaded to the forward path to improve transient time performance by at least three folds, and a minimal steady-state error when the input is a step input. Show MATLAB script and step response graph before and after the use the compensator. Power Amplifier and Amplifier Plant R(s). C(s) K G(s) Tachometer H(s) Figure 1: Power Amplifier 1 (s) = (s + 1)(s+ 5)(s + 10) H(s) = Kfs

Task 4 A Power Amplifier control system is shown in figure 1. 1. Find the values of K and Kr so that the closed-loop system will have a Mp = 50% overshoot and the minor loop will have a damping ratio of (=0.5169. 2. Provide a step response and a frequency response graphs. 3. Using K from step (a), compare the expected performance of the system without tachometer compensation to the expected performance with tachometer compensation. 4. Using the values of K and Kr as previously determined, design a lead-lag compensator cascaded to the forward path to improve transient time performance by at least three folds, and a minimal steady-state error when the input is a step input. Show MATLAB script and step response graph before and after the use the compensator. Power Amplifier and Amplifier Plant R(s). C(s) K G(s) Tachometer H(s) Figure 1: Power Amplifier 1 (s) = (s + 1)(s+ 5)(s + 10) H(s) = Kfs

Understanding Motor Controls

4th Edition

ISBN:9781337798686

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter54: The Operational Amplifier

Section: Chapter Questions

Problem 7RQ: Name two effects of negative feedback.

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