Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Chapter 43, Problem 4SQ
What is the function of the field loss relay?
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The circuit shown in Fig. 14.98 has the impedance
Z(s) =
1,000(s+1)
(s+1+j50)(s+1 – j50) '
s=j@
Find:
(a) the values of R, L, C, and G
(b) the element values that will raise the resonant frequency by a factor of 103 by
frequency scaling
Z(s)
Figure 14.98
For Prob. 14.81.
R
7
Chapter 14, Problem 57.
Determine the center frequency and bandwidth of the bandpass filters in Fig. 14.88.
1 F
ΙΩ
ww
V. (+
1 F
10 V
1 H
m
(a)
(b)
ΙΩ
ww
ΙΩ
1HV
Figure 14.88
For Prob. 14.57.
Chapter 14, Problem 43.
Calculate the resonant frequency of each of the circuits in Fig. 14.82.
C
(a)
Figure 14.82
For Prob. 14.43.
(b)
C
L
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- Chapter 14, Problem 5. For each of the circuits shown in Fig. 14.72, find H(s) = V。 (s)/V¸(s). R www V. R L Vo Vs m R (a) www (b) Figure 14.72 For Prob. 14.5. + CV₂arrow_forwardA robot gripper is shown on Fig.1a. The block diagram of the control system is shown in Fig.1b. This system is conditionally stable because it is stable only for a range of the gain K. Using the Routh-Hurwitz criterion method to determine the range of gain for which the system is stable. Find the steady-state error due to unit step input. Sketch the root locus of the system and analyze its stability. Find the value of K so that the phase margin is minimum, and record the values of the phase margin, gain margin, Mr, and BW. Then draw the Bode plot of the system and discuss its stability using the Nyquist stability method. What is the value of this maximum overshoot for both large and small values of K due to unit step input? Draw the response of the open-loop and closed-loop of the system according to the unit step system for k=15, 25, 50. Discuss how to improve the system response if needed.arrow_forwardPlease show the stepsarrow_forward
- Don't use ai to answer I will report you answerarrow_forwardDerive the transfer functions C'A(s)/T'(s) and T'(s)/C'A0(s). show step by step and write them out so they are easy to read. thank youarrow_forward4) Find the Norton equivalent of the following circuit. 5 µF 4 cos(200t+30°) A ele 10 H www 2 ΚΩ barrow_forward
- Don't use ai to answer I will report you answerarrow_forwardQ1. Consider the unity feedback control system whose open-loop transfer function is: G(s) = = 40(S + 2) s(s+3)(s + 1)(s + 10) hod of Ziegler-Nichols. By using second method of Ziegler- Nichols, calculate the PID, PI-D and I-PD parameters and make tuning for this for this parameters to get accepting response for the following system, then compare your results for all types controllers? GINarrow_forward1) Use the method of source transformation to find Ix in the following circuit. ΖΩ j4Ω wwwm -j20 60/0° V(+ 602 www 492 -j30 wwwarrow_forward
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