Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Chapter 17, Problem 6SQ
To determine
State the most commonly used control voltage in an intrinsically safe system.
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Q6/ (10 Marks)
For the system shown in Fig.3, determine the values of (K) and (a) so that the
maximum overshoot in unit-step response is (50% ) and the peak time is (5)
seconds.
R(s)
C(s)
ΟΙ
02
G3
G4
TI
Q1
H2
HI
Fig.1
A1
9 P
P1
Q2
h2'
A₂
3
9 R2
Q3
R(s)
Fig.2
K
S²
C(s)
1+ as
Fig.3
Examiner
2-2
Head of the Department
Dr. Hassanein Ibraheem
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Answer this question and show me step by step using by Hand not Ai i need ex
Chapter 17 Solutions
Electric Motor Control
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- Q.3) You want to transmit the message &$ a. Encode this textual message into a sequence of bits, using 6-bit ASCII coding, followed by a seventh bit for error detection, per character. The seventh bit is chosen so that the total sum of bits using XNOR gate is zero How many total bits are there in the message? b. Assuming the bit duration 10 ms, plot the Dicode RZ line code. c. Assuming the bit duration = 10 ms, plot the Bi--M code. d. Assuming the bit duration 10 ms, plot the Miller line code.arrow_forwardQ1: A. Express the sequences shown in Figures. 1 in terms of unit step functions: -4-3-20 1 2 3 4 5 (a) x[m] -4-3-2-1 1 2 3 C (b)arrow_forwardcontrol system Peak Time Rise Time Overshoot Settling Timearrow_forward
- The critical magnetic flux density of a long superconducting wire is 10 mT at 0K. a) Calculate the critical current of the wire if the radius is 1 mm. b) What is the critical current density of the wire if the penetration depth is 500 nm in 0K? c) If the penetration depth is 400 nm at 5K what is the critical temperature of this superconductor.arrow_forwardNote: Please solve the question on the paper. The forward-path transfer function of a unity-feedback control system is G(s)=k/(s+5)^3 1. Sketch the Nyquist plot of G(jw)H(jw) for w=0 to w=∞ 2. Determine the range of.(0arrow_forwardNeed Handwritten solution. Do not use AI or chatgptarrow_forward
- control system root locus do for all stepsarrow_forwardDO BY HAND NOT USING CHATGPT OR ANY AIarrow_forwardThe Bode Plote (a) Find out how much the loop gain must be changed from its nominal value if the phase margini s 45°. (b) Find out how much the gain k must be changed from its nominal value ift he system become marginally stable. Note: Please explain what the result would be and mark the drawing.arrow_forward
- A single superconducting coaxial cable could carry a power of 1 GW (the output of a large power plant) at 200 kV, DC, over a distance of 1000 km without loss. An inner wire of radius a = 2.40 cm, made from the superconductor Nb3Sn, carries the current (I) in one direction. A surrounding superconducting cylinder of radius b = 4.54 cm would carry the return current (I). a) In such a system, what is the magnetic field at the surface of the inner conductor (in mT)? b) What is the magnetic field at the inner surface of the outer conductor (in mT). c) How much energy would be stored in the magnetic field in the space between the conductors in a 1000 km superconducting line (in MJ)? d) What is the pressure exerted on the outer conductor due to the current in the inner conductor (in Pa)?arrow_forwardcontrol system find peak time overshoot settling time rise timearrow_forwardA superconducting magnetic energy storage coil is made from a toroidal ring coil (torus). The coil’s cross-sectional radius is d = 1.5 m and radius of the torus is r = 1.5 km. The torus is wound with N = 175,000 turns and is able to carry a current I = 110,000 A. a) Calculate the magnetic flux density in the torus. b) What is the amount of energy stored in the torus? c) If a city requires 500 MW of power how long can this storage ring of this type power the city in case of a blackout in power generation? Assume there are no losses in the conversion of energy from stored DC to AC energy required by standard grids.arrow_forward
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