EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
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Chapter 25, Problem 9SQ
To determine
How the rotating magnetic field can rotate in opposite direction.
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3-4)
3.4-2 Signals g₁(t) = 104П(104) and g2(t) = 8(t) are applied at the inputs of the ideal low-pass
filters H₁(f)=(f/20,000) and H2(f) = П(f/10,000) (Fig. P3.4-2). The outputs y₁ (t) and
y2(t) of these filters are multiplied to obtain the signal y(t) = y1 (1)y2(t).
(a) Sketch G1(f) and G2(f).
(b) Sketch H₁(f) and H₂(f).
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(d) Find the bandwidths of y₁ (t), y2(t), and y(t).
8₁ (1)
H₁(f)
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y(t) = y₁ (1) y2 (1)
82(1)
½⁄2 (1)
H₂(f)
solve the differential equation y'' -2y'-3y=x³e^5x cos(3x)
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Chapter 25 Solutions
EBK ELECTRIC MOTOR CONTROL
Ch. 25 - Prob. 1SQCh. 25 - When can full-voltage starting be used?Ch. 25 - Name the simplest, most rugged, and most reliable...Ch. 25 - Define the term slip.Ch. 25 - When the voltage is reduced to start a motor, what...Ch. 25 - Why is it more advisable to start some machines at...Ch. 25 - Prob. 7SQCh. 25 - Prob. 8SQCh. 25 - Prob. 9SQCh. 25 - Prob. 10SQ
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- Construct a battery pack to deliver 360V and 450-mile range for a vehicle that consumes 200 Wh/mile, from prismatic cells with 25Ah and 3.6 V. Physical dimensions of the cell are 0.5 cm thickness, 20 cm width and 40 cm length. a) Report configuration of the battery pack. 10-points b) Resistance of each cell is 0.05 Ohm, calculate the total internal resistance of the battery pack. 10-points c) Calculate the voltage drop during discharge when the battery is discharged at 100A. 10-points d) Calculate the amount of anode and cathode to build a prismatic cell with 25Ah capacity. Assume the cell chemistry as: Si anode and [Li(Ni1/3Co1/3Mn1/3)O2] cathode. Atomic weight of elements: Li=7, Si = 28, Ni=58, Co=59, Mn=55, O=16, 10-points e) Calculate the theoretical specific energy (Wh/kg) and practical energy density (Wh/liter) of the battery pack. 10-points f) Calculate the thickness on anode and cathode coating assuming each electrode has 30%…arrow_forwardI need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forwardDesign a battery pack for an electric bike that consumes in average 10Wh/mile and drive 30 miles per charge. The battery state of charge window is 80%. Design the battery by using new commercial cylindrical cells with 20mm diameter and 80mm height. The battery is constructed based on graphite anode C6 and cathode Li(Ni0.8Co0.15Al0,05)O2 that provides 3.75V at the cell level and 10Ah capacity. Density of anode is 2.2 g/cm3 and density of cathode is 4.5 g/cm3. Report on the battery pack configuration if the required battery pack voltage is 75 volts. If the thickness of anode and cathode is limited to 130 microns (130 x 10-4 cm) calculate the total electrode surface area in each cell. Assume the porosity of electrodes are 30%. Calculate the weight of active materials (anode and cathode) in grams and the total current collector’s and electrolyte membrane areas in (cm2).arrow_forward
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