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Contents…
• Abstract.
• Introduction.
• Basics of a motor.
• Classification.
• Brushed motors.
• BLDCM.
• Working procedure.
• Applications.
• Advantages.
• Disadvantages.
• Conclusion.
• Reference.
Abstract…
• Permanent magnet (PM) brushless DC motors
(BLDCM) are generated by virtually inverting the
stator and rotor of PM DC motors.
• These motors are actually fed by rectangular AC
waveform.
• The advantage is the removal of brushes, leading
to eliminate many problems associated with
brushes.
• Another advantage is the ability to produce a
larger torque because of the rectangular
interaction between current and flux.
Introduction…
• Classical DC motors are no doubt good and
simple but inefficient in some ways.
• Although dc motors possess good control
characteristics and ruggedness, their
performance and applications are inhibited due
to sparking and commutation problems.
• The Permanent Magnet Brushless DC (PMBLDC)
motor is able to overcome the limitations
mentioned above and satisfy the requirements of
a variable speed drive.
MOTOR…
 MOTOR…
>> Converts electrical energy to
mechanical energy.
 ORIGIN...
>> Nicola Tesla introduces electric motor
in December 1889.
>> He identifies the principle of rotating
magnetic field.
Main parts of brushed motor...
 Commutator :
>> Facilitate collection of current
from the armature
conductors.
 Brush :
>> Collects current from the
commutator.
Classification…
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx
Brushless-DC-Motor.7027711.powerpoint.pptx

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Brushless-DC-Motor.7027711.powerpoint.pptx

  • 1. Contents… • Abstract. • Introduction. • Basics of a motor. • Classification. • Brushed motors. • BLDCM. • Working procedure. • Applications. • Advantages. • Disadvantages. • Conclusion. • Reference.
  • 2. Abstract… • Permanent magnet (PM) brushless DC motors (BLDCM) are generated by virtually inverting the stator and rotor of PM DC motors. • These motors are actually fed by rectangular AC waveform. • The advantage is the removal of brushes, leading to eliminate many problems associated with brushes. • Another advantage is the ability to produce a larger torque because of the rectangular interaction between current and flux.
  • 3. Introduction… • Classical DC motors are no doubt good and simple but inefficient in some ways. • Although dc motors possess good control characteristics and ruggedness, their performance and applications are inhibited due to sparking and commutation problems. • The Permanent Magnet Brushless DC (PMBLDC) motor is able to overcome the limitations mentioned above and satisfy the requirements of a variable speed drive.
  • 4. MOTOR…  MOTOR… >> Converts electrical energy to mechanical energy.  ORIGIN... >> Nicola Tesla introduces electric motor in December 1889. >> He identifies the principle of rotating magnetic field.
  • 5. Main parts of brushed motor...  Commutator : >> Facilitate collection of current from the armature conductors.  Brush : >> Collects current from the commutator.