Hybrid Book - Chapter 6
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A PM electric machine contains all of the following except a ___.
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Rotor
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Stator
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Magnet
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Commutator
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- 2.
Another method to control the regenerative braking power generated by a PM electric machine is to ___.
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Increase the rotor speed
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Increase the field-weakening current
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Increase the lead vector
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Eliminate power-inverter signaling
Correct Answer
A. Increase the field-weakening current -
- 3.
A V-shaped magnet arrangement in the rotor decreases the ___.
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Maximum rotor speed
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Minimum rotor speed
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Rotor diameter
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Back EMF
Correct Answer
A. Back EMF -
- 4.
A PM/BLDC operates with a(n) ___ stator to trigger timing control.
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Synchronous
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Asynchronous
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Six-step
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Axial
Correct Answer
A. Synchronous -
- 5.
In a PM/BLDC machine, an increase in stator current causes a(n) ___.
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Increase in torque
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Decrease in torque
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Increase in rotor speed
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Decrease in rotor speed
Correct Answer
A. Increase in torque -
- 6.
One method to control the regenerative braking power generated by a PM electric machine is to ___.
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Control the lag angle
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Control the lead angle
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Increase the stator field speed
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Decrease the stator field speed
Correct Answer
A. Control the lag angle -
- 7.
Field weakening of a PM electric machine is necessary to overcome the back EMF created by the ___.
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Stator magnetic field
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Stator speed
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Magnets
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Flux vector angle
Correct Answer
A. Magnets -
- 8.
The Toyota Prius PM electric machine controls ___ magnets poles on its rotor.
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4
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8
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16
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24
Correct Answer
A. 8 -
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Current Version
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Mar 15, 2022Quiz Edited by
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Dec 19, 2012Quiz Created by
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