8. The input r(t) and output y(t) of a transfer function block are sin(wt) and A...
Question 6 The open-loop transfer function G(s) of a control system is given as G(8)- s(s+2)(s +5) A proportional controller is used to control the system as shown in Figure 6 below: Y(s) R(s) + G(s) Figure 6: A control system with a proportional controller a) Assume Hp(s) is a proportional controller with the transfer function H,(s) kp. Determine, using the Routh-Hurwitz Stability Criterion, the value of kp for which the closed-loop system in Figure 6 is marginally stable. (6...
K2 K →X () На Figure 3: 3. (a) Find T(s) = xtransfer function by reducing the block diagram shown in Figure 3 for K; and H;s. (b) Find the positions of roots of the denominator polynomial of T(s) in s-plane by using Routh table (Routh-Hurwitz criteria) for Ki = , K2 = 1, H2 = 1 and H2 = 3+1 (C) Analyse the stability of the system and explain your findings.
3. For the feedback control system shown in Figure Q3 below, the forward-path transfer function given by G(s) and the sensor transfer function is given by H(s). R(s) C(s) G(s) H(s) Figure Q3 It is known that G(s) -- K(+20) S(+5) H(s) = and K is the proportional gain. (S+10) i. Determine the closed-loop transfer function and hence the characteristic equation of the system. [6 marks] ii. Using the Routh-Hurwitz criterion, determine the stability of the closed-loop system. Determine the...
Q2 (a) List down THREE (3) important requirements to design a control system. (3 marks) State the possible consequence when a physical system becomes unstable. (2 marks) (6) (c) Consider the following characteristic Equation shown below: P(s) = 55 +683 + 582 +8s + 20 (1) Construct Routh table for the characteristic Equation. (6 marks) (ii) Using the Routh – Hurwitz criterion, determine the stability of the system. (2 marks) (ii) Determine the numbers of roots on the right half-plane,...
The input x(t) and output y(t) of a causal LTI system are related through the block-diagram representation shown in Figure P 9.35. Determine a differential equation relating y(t) and x(t). is this system stable?
NASC NESSARY & sufficient criterior Use the Routh - Hurwitz technique for the Derive the N.A.S.C. for a 5th order system with arbitrary coefficients {an.... a3 (n=5). Clearly state the conditions on the a.). - Assess the stability and state the N.A.S.C. for each system in #p6ol, page 405 (also shown on Canvas in Files Homewor. of the text. Note: This problem has parte "a)" through "g). [Routh- Hurwitz is optional for 3.] - For a system given as: y...
(3 points) 5 points) estpe A sin (wt+ a) 3. For the following coupled electro-mechanical system (30 POINTS) NOTE Lond0 Derive governing differential equations. (6 points) NOTE: I specifically want charge (a) and angular displacement (9) to be the variables Use these equations to derive and setup a block diagram representation of the system. NOTE: 1. I specifically want input to be Vs and output to be the angular velocity (O) a final block diagram with "s", "1/s" and linear...
7. (Problem 7.1) A string is oscillating with the wave function y(x,t) A sin(kx-wt) with A-3 cm, k=0.2π rad/cm, and ω = 10π rad/cm. For both t = 0.05s and 0.07s sketch the string for 0 s xS 10 cm
Q4. (a) Reduce the block diagram shown in Figure Q4a to a single mathematical expression suitable for implementation in MATLAB. Each letter represents a transfer function in the s-domain. (10) G1 G2 G3 G4 G5 G6 Figure Q4a (b) Describe the process of generating the Nyquist plot. (c) Discuss how you would investigate the stability of a control system using the Nyquist plot and gain and phase margins of stability. (7) Q4 Total Marks [25] educe the block diagram shown...
yce) Figure 1: Time-domain block diagram, with input u(t) and output y(t). For the block diagram shown in Figure find the system transfer function Y (s)/U(s).