Problem #4: Applying Routh's Criterion, use the following transfer function to compute the closed-loop system from...
Problem #6: Applying Routh's Criterion, assume you have a gain K that you can tune for your system that gives the following characteristic polynomial 1+G(s) = 55+ 5s4 + 1053 + 10s2 + 5s +K a) Find the range of K that makes the system stable? b) Can use MATLAB to plot the roots onto a pole-zero map for several values of the ranges you determined in a), to show the system is in fact stable? Problem #7: Applying Routh's...
2. Given a unity feedback system with open-loop transfer function s+40s-I) a) For K-1, derive the expressions for the real and imaginary parts of G(jo). b) What happen to the real and imaginary parts of G(jo) for ω 0 and for Are there values of ω that either the real or imaginary part goes to zero? If not, compute Gijo) for some ovalue, say,, or 2, to help you sketch the Polar plot of Gja). c) d) Use Matlab to...
Question# 1 (25 points) For a unity feedback system with open loop transfer function K(s+10)(s+20) (s+30)(s2-20s+200) G(s) = Do the following using Matlab: a) Sketch the root locus. b) Find the range of gain, K that makes the system stable c) Find the value of K that yields a damping ratio of 0.707 for the system's closed-loop dominant poles. d) Obtain Ts, Tp, %OS for the closed loop system in part c). e) Find the value of K that yields...
5. Given the following closed-loop system transfer function (20 points) s2 + (1 + 0.1k)s + K a. b. Using Routh's Array criteria, determine the range of K for the system to be stable. The value of K such that the damping ratio is ζ-0.65.
Use rlocus in MATLAB to plot the root locus for a closed loop control system with the plant transfer function 8. z 2 2)2-0.1z +0.06 For what value of k is the closed loop system stable? 9. The characteristic equation for a control system is given as z2(0.2 +k)z 6k +2-0 Use Routh-Hurwitz criterion to find when the system is stable. 10. Use MATLAB to plot the root locus for the system given in Problem 9. Compare your conclusion in...
4) A unity feedback control system shown in Figure 2 has the following controller and process with the transfer functions: m(60100c Prs(s +10(s+7.5) a) Obtain the open- and closed-loop transfer functions of the system. b) Obtain the stability conditions using the Routh-Hurwitz criterion. e) Setting by trial-and-error some values for Kp, Ki, and Ko, obtain the time response for minimum overshoot and minimum settling time by Matlab/Simulink. Y(s) R(s) E(s) Fig. 2: Unity feedback control system 4) A unity feedback...
(i)Apply the Nyquist criterion to find the gain Kp at which the closed loop system becomes marginally stable and the practical range of safe operating gains for the proportional controller. (ii) Find the gain margin of the system when the operating gain of the controller Kp = 2. Use Fig. 2 to read the required values off the plot. Proportional Controller Process R(S) Y() Figure 1: Unity Feedback Systems Consider again the system in Fig. 1. The plant transfer function...
Discuss the mathematical requirements for stability in a linear feedback system and state the Routh Stability criterion. (6 marks) (a) The open loop transfer function of a control system with unity feedback is given by: (b) 35 s(1 + Ts) (1 +0.25s) G(s) - Use Routh's criterion to determine the value of T for which the closed loop system is marginally stable. (8 marks) i Use the Nyquist criterion to confirm the values obtained in (i). (8 marks) ii Sketch...
A unity gain negative feedback system has an open-loop transfer function given by 4. s) = s(1 + 10s)(1 + 10s)? Draw a Bode diagram for this system and determine the loop gain K required for a phase margin of 20 deg. What is the gain margin? 5. We are given the closed-loop transfer function 10(s + 1) T(s) = 82+98+10 for a "unity feedback" system and asked to find the open-loop transfer function, generate a log-magnitude-phase plot for both...
PROBLEM 2 Suppose that a system is shown in Figure 2. Based on for loop, write a piece of MATLAB code to calculate the closed loop poles for 0sKs5 and plot the outputs where the poles are represented by "W" letter. Find the interval of K parameter for stability using Routh-Hurwitz method. Calculate the poles of the closed loop transfer function where K attains the minimum value such that the system is stable. R(s) 52(K - 3)s + K Figure...