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b) A feedback control system is shown in Figure 6. Determine the gain, K for stable...
3. For the feedback control system shown in Figure Q3 below, the forward-path transfer function given...
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...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controll...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controller Sketch (by hand) and fully label a Nyquist plot with K-1 for each of the plants listed below.Show all your work. Use the Nyquist plot to determine all values of K for which the closed-loop system is stable. Check your answers using the Routh-Hurwitz Stability Test. [15 marks] (a) P(s)-2 (b) P(s)-1s3 (c) P(s) -4-8 s+2 (s-2) (s+10)
1. Consider the usual unity-feedback closed-loop control system with a...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controller: 19 r - PGS-Try...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controller: 19 r - PGS-Try P(s) Draw (by hand) and fully label a Nyquist plot with K = 1 for each of the plants listed below. Show all your work. Use the Nyquist plot to determine all values of K for which the closed-loop system is stable. Check your answers using the Routh-Hurwitz Stability Test. [15 marks] (a) P(s) = (b) P(s) = s(s+13 (6+2) (©) P(s) = 32(6+1)
Consider the system shown in Figure 1. Using the Routh-Hurwitz Criterion, determine the range of K...
Consider the system shown in Figure 1. Using the Routh-Hurwitz Criterion, determine the range of K for which the system is stable. R(s) Figure 1
A feedback control system with adjustable gain K is shown as in Figure 4.1. Here, Q4 1 and H (s) where b 2a bs +a G(s)=...
A feedback control system with adjustable gain K is shown as in Figure 4.1. Here, Q4 1 and H (s) where b 2a bs +a G(s)= 3(s+a) Y(s) R(s) G(s) К H(s) Figure 4.1 A feedback control system with adjustable gain Sketch Nyquist plot for G(s)H(s) for 0.9 <a < 1.1. (a) (18 marks) (b) Discuss the stability of closed-loop system with open-loop function as in (a) if K 10b (7 marks)
A feedback control system with adjustable gain K...
a) Determine the range of K to keep the system shown in Figure 3 (a) stable....
a) Determine the range of K to keep the system shown in Figure 3 (a) stable. R(S) Eys) C's) 32 +25+1 Figure 3 (a) 16 marks b) Given the unity feedback system of Figure 3 (b) where, G() = K(s+25+6) s? +8s +25 C) 6) Figure 3 (b) Sketch the root locus for the unity feedback system shown in Figure 3 (b). [14 marks
Question 6 The open-loop transfer function G(s) of a control system is given as G(8)- s(s+2)(s +5...
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...
Q2 (a) List down THREE (3) important requirements to design a control system. (3 marks) State...
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,...
KKKM3473/KKKM3314/KKKM3344 The characteristic polynomial of a feedback control system is given by 5. where K>0. Dete...
KKKM3473/KKKM3314/KKKM3344 The characteristic polynomial of a feedback control system is given by 5. where K>0. Determine the range of values of K for which the system is stable. (10 marks) The closed loop poles of a second order system are located at points -3.5+1.5t and 6. -3.5-1.51 on the complex plane. Calculate the damped natural frequency, ωd. (10 marks) 7. The Bode plots for a first order dynamic system is shown in Figure 3. Estimate the magnitude and phase when...
consider a feedback control system shown in Fig.1, where Problem 3 Consider a feedback control system...
consider a feedback control system shown in Fig.1, where
Problem 3 Consider a feedback control system shown in Fig. 1, where s2 +s+4 1. Is the system open-loop stable? 2. Determine the value of the proportional gain K such that the phase margin is Ap 3. What is the gain margin with this gain K? 50
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...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controller Sketch (by hand) and fully label a Nyquist plot with K-1 for each of the plants listed below.Show all your work. Use the Nyquist plot to determine all values of K for which the closed-loop system is stable. Check your answers using the Routh-Hurwitz Stability Test. [15 marks] (a) P(s)-2 (b) P(s)-1s3 (c) P(s) -4-8 s+2 (s-2) (s+10)
1. Consider the usual unity-feedback closed-loop control system with a...
1. Consider the usual unity-feedback closed-loop control system with a proportional-gain controller: 19 r - PGS-Try P(s) Draw (by hand) and fully label a Nyquist plot with K = 1 for each of the plants listed below. Show all your work. Use the Nyquist plot to determine all values of K for which the closed-loop system is stable. Check your answers using the Routh-Hurwitz Stability Test. [15 marks] (a) P(s) = (b) P(s) = s(s+13 (6+2) (©) P(s) = 32(6+1)
Consider the system shown in Figure 1. Using the Routh-Hurwitz Criterion, determine the range of K for which the system is stable. R(s) Figure 1
A feedback control system with adjustable gain K is shown as in Figure 4.1. Here, Q4 1 and H (s) where b 2a bs +a G(s)= 3(s+a) Y(s) R(s) G(s) К H(s) Figure 4.1 A feedback control system with adjustable gain Sketch Nyquist plot for G(s)H(s) for 0.9 <a < 1.1. (a) (18 marks) (b) Discuss the stability of closed-loop system with open-loop function as in (a) if K 10b (7 marks)
A feedback control system with adjustable gain K...
a) Determine the range of K to keep the system shown in Figure 3 (a) stable. R(S) Eys) C's) 32 +25+1 Figure 3 (a) 16 marks b) Given the unity feedback system of Figure 3 (b) where, G() = K(s+25+6) s? +8s +25 C) 6) Figure 3 (b) Sketch the root locus for the unity feedback system shown in Figure 3 (b). [14 marks
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...
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,...
KKKM3473/KKKM3314/KKKM3344 The characteristic polynomial of a feedback control system is given by 5. where K>0. Determine the range of values of K for which the system is stable. (10 marks) The closed loop poles of a second order system are located at points -3.5+1.5t and 6. -3.5-1.51 on the complex plane. Calculate the damped natural frequency, ωd. (10 marks) 7. The Bode plots for a first order dynamic system is shown in Figure 3. Estimate the magnitude and phase when...
consider a feedback control system shown in Fig.1, where
Problem 3 Consider a feedback control system shown in Fig. 1, where s2 +s+4 1. Is the system open-loop stable? 2. Determine the value of the proportional gain K such that the phase margin is Ap 3. What is the gain margin with this gain K? 50
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